Chainset OptionsBottom Bracket OptionsCassette OptionsRear Derailleur OptionsFront Derailleur OptionsSTI Levers OptionsBrake Calipers OptionsChain Options
Shimano Ultegra 6800 Groupset, 11 speed Shimano Ultegra groupset, all the Dura Ace features at an great price.
- Latest model shimano Ultegra groupset
- 6800 series 11 speed
- Shares many of the feature of the Dura Ace 9000 groupset but at more economical price point
- Chainset: FC6800 34/50, 36/52 or 39/53, choice of crank length
- Bottom Bracket: BR-60 6800 Sealed
- Cassette: CS6800 11 speed 11-25, 11-28 or the new 11-32 (11-32 only compatable with the GS rear derailleur)
- Chain: CN6800
- Front Derailleur: FD6800 Braze-On
- Rear Derailleur: RD6800, SS for the 11-25 & 11-28 cassettes if selecting the 11-32 cassette you must select the GS medium rear derailleur
- Levers: ST6800 brake/gear levers
- Brakes: BR6800 brake calipers
- Cables: All cables included
The Shimano Ultegra 6800 11 speed groupset is the successor to the ever popular Shimano Ultegra 6700 10 speed groupset. There's a lot more to the new groupset that an extra sprocket on the rear cassette. Featuring many of the peformance features of the Dura Ace 9000 groupset the 6800 makes it more accessable to enjoy all of Shimanos latest inovations.
The new Ultegra 6800 groupsets features a redesigned 4 arm chainset that allows 34/50 and 39/53 rings combinations to be used on the same spider, we will also see the 36/52 ratio as seen on the Dura Ace chainset. The brake calipers are symmetrical dual pivot design again brought over from the 900 Dura Ace groupset, 10% more powerful than the 6700 caliper.
The rear derailleur has a GS model to allow it to be used with the 6800 11 speed 11-32 cassette, when used with the compact chainset it gives a gear for every ride and every rider, ideal for the toughest sportives.
All in all the new Shimano Ultegra 6800 groupset offers greater performance than the 6700 groupset with the added advantage of lower weight and the extra flexibility of a 2 x 11 speed drivetrain.
With the groupset you will need a pair of 11 speed compatable wheels, you have the choice of any of the Dura Ace 9000 wheels or the new Ultegra 6800 wheels. There are also the new RS81 C24 or C50 models and a choice of training wheels like the RS61, RS31, RS21 and RS11.
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Fast service, 4 days to Houston. Installed the next day and I think it's the best move I've made in a long time. I hope it last longer than the 6700 that came on the bike. Anyhow this group set is really smooth shifting and braking, it almost feels like Dura Ace.
Replaced a 10 years old dura-ace/ultegra groupset, and it was way overdue. Rode this morning for the first time and shifted like butter! So, so quiet! Love, love, love this drivetrain.
This groupset is as good as advertised. I was riding a 2013 mostly 105 groupset, and the difference is noticeable.
I bought a 2004 Cannondale R1000 (still one of the best frames out there), and I decided to upgrade it with the existing Ultegra 9 speed to 11 speed, and also Fulcrum Racing Zero wheels, and what a difference it made!! I've now got a flying machine that can climb anything with ease!
Back to the Ultegra 6800: it arrived with usual Merlin speed, and I even received an early morning text giving me my 1 hr slot.
I've already bought 105 5800 (via Merlin also naturally) for another bike, and there is a circa 300g saving between the two, and the Ultegra is noticeably slicker and smoother, and the brakes, well I nearly went over the bars !!!
Got the Ultegra groupset with 10% off, which makes it even better!
I've bought quite a bit from Merlin over the last few years, and I couldn't be happier - always my first choice for bike stuff
Great group set, love the spread of gears with the 52x36 front and 11-32 rear combo, cranks feel very rigid and brakes are responsive. Thought about buying Durace but no regrets given the cost difference and the quality of the Ultegra kit.
In general, the 6800 groupset is what you would expect from Shimano's second highest tier groupset: little mass (although I haven't personally measured individual component weight), crisp shifting, and reasonable wear characteristics. It was easy to do the swap from 5700 series components (10 speed 105) on my Giant TCR Advanced to this groupset and everything just worked.
Skipping ahead about 1.5 years, I have put ~4000 miles on a Defy Advanced and ~3000 on the TCR. I am not necessarily easy on those bikes; in that time I have cracked the Defy frame, noticed some worrying indications of cracking on my TCR frame (which itself is a replacement frame), lost a tail light from fatigue, and had the mounting assembly on the back of my Garmin fatigue and crack. To this list, I recently added the right crank from this groupset. I was feeling pretty good and had averaged 350 W to 380 W on a couple of 5 minutes segments before I noticed that my right pedal seemed to be getting "mushy." It turns out that the inner alloy panel (i.e. facing the centerline of the bike) had fatigued and cracked along the weld with the outer alloy shell that you typically see in pictures of the drive side crank. Fortunately, the failure happened within Shimano's 2 year warranty and I'm getting a replacement crank, but I'm still a bit surprised that I was able to crack a crank like this.
First, I know I'm not supposed to review the service but, this groupset arrived at my front door in the USA less than a week after I placed the order (free shipping), you can't get better service than that. After a few rides I have noticed a definite improvement in shifting under load over the Tiagra set that I replaced and the brakes have much better feel. Also I have been getting compliments on how the bike looks! That's something I didn't expect.
Coming from a stock 105 group set on my Trek Madone this is a definite step up. The shifting is tight and precise in both the front and rear mech. The braking is supple and tight. I would recommend Ultegra for any cyclist racer or just a group rider weekend worrier. 10 out of 10
Put through the wringer! Having ridden both SRAM & Shimano, I (personally) have had great luck with Shimano. It has always been super reliable. Crisp shifting & reliability is what sold me on this groupset.
Great price, prompt delivery. The entire groupset was everything I was expecting. Easy to install and it works wonderfully. After I installed the groupset on my bike I went on a 205 mile organized group ride and I was so pleased with how well the bike was shifting. Highly recommend this item to anyone looking to upgrade their hardware on their bike.
I upgraded from ultegra 6700 to 6800, and instantly noticed the difference. Even before riding, the set up was so much easier, especially when indexing. In terms of ride, look at the reviews! You will not be disappointed, although if I did have the money, I would have gone all the way to dura ace, however that just gives me an excuse to get a new bike at some point. I have had no problems with this product, and if it's anything like 6700 I expect it to be bomb proof and last forever.
Upgraded from 6750 to 6800 standard. They are not a giant leap, but better. The front derailleur is the biggest improvement, everything else is the same, but that's only a good thing. And the three cogs shifting is a bonus.
Best groupset ever! The components provides superior opportunity to excel on your bike - plus at the same time be affordable, also when maintenance is needed in the future. Best Shimano groupset for the money in my opinion!
Replaced an 8-speed Ultegra groupset on my Italian steel frame bike. The weight difference is shocking and the parts are solid. The improvements in technology and materials is quite impressive. As for the transaction, better than any purchase I have made in the states. The speed of deliver y from order is better than that from and big-name retailer here in the United States. how do I know ? I ordered from three different companies at the same time for this build (could not get everything I needed from Merlin). Nas---r took much longer to deliver from Ohio than this did to arrive from across the ocean. The price from Merlin was unbeatable here as well. Great product, excellent company and service.
Ultegra 6800 group is amazingly crisp and a vast improvement over 6700. Bike actually feels faster. If you've been waiting to upgrade... DON'T !
Upgraded from 105 5700 to this piece of engineering and I'm mainly surprised with the gear shifting. Everything is so smooth and works so silently that sometimes you can't even notice that if actually the gear changed properly. This was the detail that I think makes this perfect group, perfect enough to get you to think you have an electronic and not mechanical groupset. The levers have the perfect size and thin enough to ride comfortably in every position that you desire. The brakes are simply amazing and the braking feeling and controlling of the amount of brake you desire are top!
Just had the group installed on an Alan bike from the 80's, and not only does the groupset look beautiful; it's functionality and performance is flawless. Love buying from Merlin Cycles because it's a serious company that cares about providing the best service to its clients. Thank you Merlin!!!
Great option with the best price/performance balance in Shimano range. Great improvement from previous Ultegra generation.
Upgraded from a Tiagra groupset, which was on my bike from new (and many miles ago) - what a difference this groupset has made, I am really pleased with the performance and changing gears has become a pleasure.
Upgraded from dura-ace 7800 group to the Ultegra 6800 and could not be more pleased with the improvement in smoothness and decreased effort for shifting. Packaging was extremely tidy and shipping was very fast.
Great groupset, professionally packaged and a fantastic value. Especially impressed with the brakes but everything works incredibly smooth together.
I've used the set for about 500 miles/800 km together with the rs81 wheelset I ordered. So far, it has been pure joy to ride. The shifting is slick and effortless. As to braking performance, it is better than my old dura ace 7800 set, though not a great difference. Overall, the ultegra groupset is a beautiful set both functionally and visually.
Took so long deliberating between Shimano Ultegra or SRAM Force 22 that I almost went insane! They're both excellent, just different in their own ways.
Of course, everyone has their own preference but, for me, it came down to three things...
1. With Ultregra I can change the chainrings from Compact to Standard without replacing the cranks if I ever need to.
2. The SLR EV brakes (105, Ultegra & Dura-Ace) appear to be the most powerful and sensitive of any of the main three manufacturers - by a country mile!
I ordered the Ultegra 6800 groupset on Wed 9 Dec, and it crossed an ocean and a continent in a mere 5 days to arrive in Puget Sound, Washington, US, on Mon Dec 14, with free shipping to boot. The parts replaced a mix of old DuraAce, SRAM, and 105 components on my 2007 Cannondale frame. The improvement is more than I had hoped. Crisp and certain shifting, smooth and nearly silent pedaling, with an elegant yet understated appearance that looks really cool on the matte black frame. One can't pedal far around here without encountering hills, and the 50/34 chainrings combined with the 11/32 cassette help me climb them with somewhat less wheezing and gasping than before (at 54, I am more into getting there comfortably than fast). I commute daily, rain or shine, and everything is holding up well and keeping quiet, even through the mud and grit of winter roads. Thanks Merlin for a fair price and swift free shipping.
This groupset is to go on my winter trainer. Had 6700 on it and this is so much better in shifting front and rear. Now both bikes match so I can swap wheels to suit.
I upgraded my 2007 Specialized Roubaix from 105 10 speed to this Ultegra 11 speed groupset ... smooth, quiet and very precise.
Great groupset and a HUGE step up from my 9-speed 105. I was really surprised how much difference it made, and the brakes are so strong that I almost went over the handlebars the first time I grabbed them. Shipping was fast, and best price I could find.
Diet Dura Ace - All the flavor and none of the buyers remorse. The 6800 groupset is beyond amazing, FAST SHIFTS and very durable.
Love it! Replaced my old Tiagra group set and the improvement is amazing. The Ultegra group set is very smooth and light, and along with a new set of wheels, I feel like I have a brand new bike. Very, very pleased.
Love it! Finally rebuilt a classic Serotta Colorado II with this group. This new Ultegra 6800 is a wonderful group, including comparisons to the Dura Ace 10 that I have on other bikes. Smooth and quick-shifting, wonderful brakes. Just understand that the front derailleur is a b***h to adjust, partially because it seems to have a different philosophy of trim function than previous iterations (including the Ultegra 6700 that I have on another bike).
And Merlin got all my parts to me unbelievably fast---I couldn't believe that the delivery van showed up when it did---, and packed well. My new favorite bike parts store!
Have upgraded to 11 speed Ultegra from 10 speed Dura Ace and it is a great upgrade. Can`t see the need for Dura Ace any more, now have 4 bikes all running Ultegra and can`t fault it.
I use a dura ace 9000 groupset on my other bike and can honestly say the only difference is a slight weight disadvantage, superb value and best price at Merlin.
Great price for an excellent groupset. Coming off of a Tiagra groupset (9-speed) the difference was like night and day. Smoother shifting and a wider range of rings lets me pick just right amount of effort at any given point. Also installed all of the components myself as a first time builder, note that the rear casette does not include the key you will need to tighten it to your rear wheel. But other special keys like the bottom bracket tool are included.
Great groupset, same feel as Dura Ace but less the half the cost! Well worth the upgrade.
Bought this for a new bike build. Always good, Shimano just keeps improving with each update. This grpupset is superb, even better than Dura Ace 7900 on my other bike, although a little heavier.
Merlin value excellent and service, reliability and delivery equally good.
Very good price and quick delivery. I put these on a Boardman carbon frame along with Ultergra 6800 wheels. The bike is now like riding silk, it is so, so smooth. Less effort to ride and easier climbing. It is quite an effort to fit and set up. Don't forget that if you are going from 10 to 11 speed that the 11 speed cassette will not fit on a 10 speed hub and you can't get 11 speed freehubs for all wheels, as I found out ! Hence new wheels as well,
Best group set for the money in the Shimano lineup. I have this set on my Trek Emonda S6. Loved it so I bought this for my commuter build. It was between this and the new 105 5800. Since I wanted the 32 gearing for my Trek, might as well get this and use the rear derailleur and the cassette.
Everything is just smooth. Love the ergo on the lever too. If you aren't willing to shell out the money for this. look into the 105 5800!
Mr Williams Sr
Gee what can I say. I put this Ultegra 6800 group on my 2007 Orbea Opal frame: my first ride on it yesterday and I thought I was riding a new bike. Performed perfectly. The 6800 front derailleur goes from small to large and visa versa effortlessly. I got the mid cage option w/ 11-32 cassette the spacing and range is perfect. I live in No. California we have a lot of hills and mountains those low gears come in real handy on the steep pitches. I LOVE! this group set can't say enough positive about it. I also treated my self to Dura Ace SPD/SL peddles and love them as well good stuff buy it.
Was looking for an upgrade that would make a noticeable difference, and the Ultegra groupset is the best value for money upgrade I could find. It was easier to install than my last groupset, the ride is so much smoother, and the ultegra grey looks awesome. Very happy.
Superb! Everything about it! Reviewers previously said that I would not notice a difference between this and the Tiagra 4800 groupset I was running previously, I undoubtedly do! The shifts on the rear derailleur are impeccably perfect, and the ones on the front are almost as good! The 39-53 crankset is so much better than my previous compact one. Brakes are significantly improved over the Tiagra ones, stopping distance is much lower. Shifter levers are easier to operate, and the whole package looks awesome! If you're on edge like I was, I would go for it! Plus, I could not find a better price than on Merlin Cycles! Ordered it on a Sunday, had it by Wednesday, from England no less! They definitely have my business in the future!
Outstanding groupset functionally. Aesthetically top notch and the value can not be beat. Thanks to Merlin Cycles for offering this product at such a great price.
Replacement for my Ultegra 6700 groupset and the difference is really noticeable. Two key areas stand out; front shifting which is lightning quick and braking which is so progressive and controllable. A very worthwhile upgrade
Excellent groupset. I rate this as 5 stars given the quality of the components and the overall improvements compared to Ultegra 6700, particularly for the calipers that are 10% more powerful and the inner gear cables that are essential for perfect shifting for bikes with internal cabling. Light durable and well made there is nothing better on the market for your money. This is a top product from Shimano and a competitive price from Merlin.
Excellent product and the new inbetweeny 36/52 set up is noticeably quicker. I went for the 32 on the back and glad I did as I live in the mountainous area of Devon and needed the jump from 36/28
The ONLY seller with a 36x46 option in the groupset as a choice!!! Way to go Merlin! I already have the 34x50 for my performance road bike-the brakes are phenomenal (enough for me to give up road discs as a future consideration!); the chain pounces up from the 34 to the 50 amazingly-still amazes me after 600+ miles, in fact. This group could only be improved by offering the CX-70 cantilever brake as an option as most folks who chose the 36x46 will be using it on a cyclocross/gravel/touring steed. Oh, most of the components came without boxes nor instructions, but for the price and free Int'l shipping I won't complain!-just something to keep in mind if you are reselling the brakes (like me) for the CX-70s as ebayers always will pay premium for NIB status. Oh, I am NOT a pushover for merely anything new-I STILL have actively ridden bikes with Suntour and Deore XT 7 speed components! This 6800 is truly spectacular in braking and shifting performance AND you get a 28 or 32 bailout gear added to your current favorite cassette.
A big improvement over the 6700 groupset, shifting and braking much better and smoother.
Solid components, easy to maintain and quality to last. No brainer to buy this.
The 6800 shifts with precision and is a major step up from the 6700. Merlin delivered 3 business days to the U.S. with standard shipping.
Major improvement over the 6600 drivetrain. Things just got a bit noisy and it was time to upgrade. Decided to upgrade to the 6800 11sp, and what an improvement. I went with the 11-32 cassette since we are climbing a lot more in the sierras and going over those little passes and the 6800 groupset along with the 6800 wheels made an old but favorite bike seem like new again.
Buying this groupset was the right choice. I have been stuck in a time warp using 9 speed which I thought was the bees knees. Having purchased this groupset I can`t believe the difference in my ride. The shifters are so precise the braking is so powerful. Technology has certainly moved on.
Excellent. Changes very smoothly, and plenty of gears for someone used to riding a triple. Levers very comfortable.
What can I say? Perfect Shimano shifting and stopping at a killer price. I've used these throughout last summer with no issues - perhaps the biggest compliment I can make is that whenever I needed another gear it was always there, no dramas and very little noise. Worth every penny.....
You always get quality when you buy Shimano and this Ultegra groupset is about as good as it gets from a value for money perspective. Everything is individually packaged and the nice thing is that you get to choose all of the components based on the available choices for each item. Currently fitting to a new frame and delighted with the easy way it is going to together. The only downside to this package is that you only get the gear cable, and still have to source the gear cable outer and the full cable kit for the brakes. However, there are some good choices available for cable kits in other brands so did not mind having to make this additional purchase.
Bought this to replace the ancient Dura Ace on my winter bike. Works flawlessly. Great having 11-speed -took the opportunity to go 11-32 so I can still do the steepest local climbs at the end of long tough rides. The best improvement over previous generations are the brakes, which are really excellent, even in crappy conditions
Great investment. No more sticky or unwanted double shifts. Shifting is now with clockwork precision and that extra gear fills in that big gap between gears to help you maintain a efficient cadence.
Only snag fitting instructions aren't included, so you have to down load the dealer manuals from Shimano's web page.
Awesome group set...purchased for my new Crit bike...I currently have DA 9000 on my training bike, and the shifting is pretty much identical.
Smooth, quiet and accurate shifts even under load. Very happy with purchase
Outstandingly smooth. Rear shifting is buttery smooth, front shifting is quick and reliable. Brakes great. Merlin's price unbeatable, shipping lightning fast. Nothing but good.
I upgraded from 2004 ultegra - I took the bike out today and it was like riding a new bike. Everything is better - the shifting is smoother, less force required to shift, very sharp shifting etc. The levers are much nicer than my old ones; lower profile and the cable routing is neater (cockpit is cable free now). This was really good value too. If I knew this would be as good as it is, I would have upgraded last year
A fantastic groupset that provides slick shifting, comfortable ergonomics and powerful braking. Made the world of difference from my 5600 105 group that I upgraded from. The 52/36 crankset is a great gearing for my level of fitness. Whilst 11 speeds seemed not essential I have found that the better spread of lower gears means that I can always find a gear for my prefered cadence
Nick the Wine
Lovely slick shifting and the brakes are superb. Upgraded the brakes from 105 and what a difference!
Unless you're terrifically lazy (i.e. need electronic gears), or can tell the difference blind-fold between 132 grams, I can't see a reason why not to get this excellent group set. It is brilliant. The powerful brakes, the slick changes. Totally brilliant
The 6800 groupset is amazing value. Cheaper and more durable than DuraAce, only only a few grams heavier. Be careful when ordering the bottom bracket - there really isn't a standard anymore.
OMG! Amazing. Awesome.
Replaced my cira 2003 105 groupie with this beaut. The difference is incredible. The cranks have no flex, the shifting is smoother than a babies bottom and the feel of riding on the shifters is most comfortable.
Easy to install, easy to adjust and now easy ride.....
Great piece of kit, well worth the money.
Superb. The shifting has improved to a puzzling extent from the 6700 version, for both front and rear. When shifting down in the cassette, you don't notice the change, you just pedal harder. No noise, no nothing. The brakes are fantastic. I will stop here. :)
Excellent groupset, the brakes are super responsive and the shift if very smooth, big improvement from my 6700 groupset. Will recommend to anyone you won`t regret it.
Bought this for my wifes bike, chose perfect gear ratios for mountains, gear changes are perfect and silky smooth every time, 4 days delivery to Perth Australia, all round fantastic groupset and service. She's happy so I'm happy :)
I bought this groupset to replace 6700. I went with the 11-32 cassette and GS cage rear derailleur.
Rear shifts are lighter but more defined, especially up the cassette. But the biggest improvement is at the front. The chain climbs instantly onto the outer ring with only a quick flick of the lever. It's almost comparable to a rear shift now.
The brakes are far better too. Shimano have managed to improve both the power and the modulation of the brakes. Much easier to feather the brakes on the limits of grip, especially in the wet.
I've only done about 1000Km so far but first impressions are that this is a big improvement over the old 6700 group.
I upgraded from Dura Ace 7900 to Ultegra 6800 and couln't be happier. Much improved brake modulation and power and much better front shifting.
Great service from Merlin Cycles, Arrived on time in two days.
Have replaced my 5yr old Ultegra groupset with the new 11spd and there is a noticeable difference. The lever distance to change gear is a lot shorter making quick changes easier, The braking is also a marked improvement on the older set having more power and less spongy cables. The feel of the hoods is another step forward really comfy and more room for larger hands, Makes a difference with internal cables as well.
Less flex with new 4arm cranks and stiffer rings.
Had tried SRAM Red double tap but this feels more natural.
Overall I cannot fault this, WHY oh WHY buy Dura Ace
Great groupset! Easy to install. Flawless performance. Super smooth shifting. The 11-32 cassette is a new concept to me and really enjoying it.
Brilliant product, downshifts shifts just like di2, upshifts super smooth too. Brakes are excellent - much better than the 6600 I was running before. Looking forward to putting lots more miles in on it!
Only complaint would be that no dealer manuals were included, but they're fairly simple to find online.
I had a half set of 105 before that came with the complete bike and now upgrade to 6800. The breaking is really strong, I slide couple of times during the ride. LOVE IT!
The crank is the biggest difference than the previous one. It feels stronger, stiffer and lighter. The power that you put on the pedal can totally reflect from the back wheels.
Gonna start accumulate some mileage now!
Excellent groupset. Shifts incredibly well both at the front and the back. I have 105 on another bike and the tactile click on these shifters is much more positive.
The brakes are strong and offer plenty of stopping power both in the dry and the wet. Ergonomics are also better. The lever shape just fits in your hand properly when in the hoods, meaning you can still get plenty of power into the brakes when you need to without swapping into the drops. A smaller touch is that with carbon levers they don't get so cold in the winter!
I haven't had chance to test the 11-28 gear range but look forward to being able to maintain a high cadence even on steeper climbs.
Installed on bike and rode 50 miles yesterday. Everthing worked as advertised. My old groupset was shimano 7800, the 6800 is a big improvement. The new 52/36 crankset is just amazing. Went up hills using the same rear gear and cadence as with my old compact crank - but a lot faster with similar power (heart rate).
I have just built up my Pinarello Dogma frame with this groupset and it really flies. The frame is not particularly light, yet the bike clocks in at bang on 8kg (with Mavic Ksyrium wheels) due to the lightness of the components.
The shifting is quick and the braking super responsive. A definate improvement on the 6700 series which I was using on my other bike.
My only gripe would be that I really struggled to get the correct tension in the front mech and set it up so it didn't rub across any of the 11 gears. But then that is probably more to do with me than the equipment!
For this price, unbeatable value.
Just upgraded from older Ultegra 9 Speed to the Ultegra 11 Speed 6800 Groupset. I chose a 52/36 crankset with 11-32 cassette. I've only been on a few rides since the groupset was installed since winter snows have come to Colorado again. First impressions of the Ultegra 6800:
unbelievably smooth shifting through a huge range of gears!! The newer brakes have a lot more stopping power, as well. New black cable housings spiffed up the appearance of an older Specialized S -Works M4. All in all, an awesome groupset at the lowest price on the planet!
Excellent update on a fantastic groupset. The new 11-speed groupset is lighter, slicker and more responsive than ever.
Definite improvement over the 6700 Ultegra groupset I`ve up graded from. Was initially concerned that a switch to under bar cable routing would affect shifting but if anything its lighter and crisper. New brake caliper design also impressively powerful with good modulation. I also like the fact that the chainsets are all now the same BCD so I only have to change the rings for the annual pilgrimage to the Pyrenees. Although with 11 cogs out back, the gears are there to tackle most stuff.
I finally, as my cycling buddies have great joy in pointing out, upgraded my old Ultegra 6510 and joined the modern world.
Instantly noticing the difference in Crank Stiffness (I was using FSA slk crank), shifting response and comfort of the new shaped STI's in the hand. However for my mind the most impressive thing about the 6800 groupset is the beautifully tactile but yet powerful braking generated from the "Dual-pivot" calipers - fantastic.
Would recommend this Groupset to anyone without hesitation!
Completely happy with the results. I used Shimano 2800... Super beginners and now I am riding 100 miles no problem. I could have never survived. I am able to spring to 28 mph in a quick time with no problem whatsoever.
I truly recommend this product to anyone that is considering it for the price.
I purchased this groupset for my latest build which has a Titanium frame. It is superb and with respect I wouldn't of expected anything else from Shimano. I have the grey version which suits the Titanium frame to a tee. Shimano once again with the greatest of respect in my opinion prove they are number one with regard to innovation & quality. Thank you.
I upgraded to the full 6800 groupset with D-A C24 wheels from the 3 year old 105 groupset which came with the bike when new. I ummed and ahhed for months about whether to splash out on a new bike so I could get Di2 but with hindsight I'm pleased my tiny sensible side won over. The improvements in smoothness of gear change, sharpness of brakes and weight are all significant. Best of all are the levers - the higher pivot point makes for ludicrously easy braking when sitting up and a quick prod leads to a smooth gear change every time. So the Di2 upgrade can wait another 2-3 years because I'm very happy with my mech upgrade! Nothing negative to say except I've heard amazing things about Di2...hence not the full 5 stars. I'll save that for 2 years time!
Feels like Dura-Ace but at half the price. Very satisfied so far.
Mr o reilly
Smoothest shift of any groupset bar none. Ultra quiet. Much reduced effort on front up shift. Brake power improved. GREAT buy.
Used to build up, an Enigma Excell frameset two weeks ago, excellent groupset, ultra smooth shifting and braking, noticeable upgrade over 105.
Beautiful, works better than my Dura Ace 7900 set up on my other bike. Front derailier is so smooth you'd think it was Di2
Ultgegra groupsets are worth every penny you pay for them! I figured i spend a little more for the 11 speed 6800 as I already had 11 speed Mavic wheels to go with it. So, I've built my bike, still waiting for some final little bits to come so that I can finally finish it, but I took it for a quick spin round the block to get feel for it last night. The Ultegra groupset is a massive improvement over my current 105 groupset on my commuting road bike, silky smooth shifting, hard braking and looks a lot better too. What I really liked when I was putting it together, was the accuracy of adjustment of the various parts. Slight turns of a screw are all that is needed to get the correct position of the brakes, or derailleurs.
Overall I'm more than satisfied with this groupset, and looking forward to fully finishing my bike and riding it.
Used this groupset on a new build, my previous bike had Ultegra 6600. Very pleased with look and feel of this set. Also lighter than expected now installed on the bike. Easy to set-up, you can find the Shimano dealer installation instructions on the web. Smooth, easy gear changes and excellent braking. New lever hoods are also very comfortable. Overall I am very happy with this purchase. Highly recommended. PS. Did I mention it looks great!
Brilliant price for the best groupset I've ever ridden. Clean crisp shifting with no obvious "gaps" in the cassette. Run the 11-32 and its like you have a triple, lowest gear without a weight penalty. Brakes are noticeably better than 6700 and the whole set is a lot lighter too. Not a negative word to say!
I replaced my old shimano 5700 with Ultegra 6800 and WOW the difference the weight is 220 grams less then Ultegra 6700. The shifters, derailleurs are same as the DURA ACE 9000. The shifting is the best I have ever experienced. If you are choosing between 6700 and 6800 DO NOT hesitate to to buy Ultegra 6800. You will love it.
Really nice product, just done a 100mile sportive with this kit and it behaved perfectly. Was a bit of a pain to set up the front derailleur; the instructions (which had to be downloaded from Shimano and weren't provided with the boxes) could have been clearer otherwise it would have been 5 stars.