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Code: FC6800
Shimano Ultegra 6800 Chainset, new 11 speed Ultegra chainset
  • Shimano Ultegra 6800 chainset
  • Product code: FC6800
  • 11 Speed compatable
  • Hollowtech 11 design
Howie Arrived quickly, perfect condition, great chainset for the money. Very satisfied both with Merlin and Shimano.
Russell Great product and good upgrade from RS 505 CX Crankset. Very keen price and rapid delivery.
Mr Tkaczyk Hot Damn. Shimano's 11-speed Ultegra 6800 groupset is really, really, really good. That's this review in a nutshell, but in the spirit of drawing things out I'll write a few more words on the matter. There's lots to say. But the bottom line is: for the serious fitness rider or privateer racer, as a package, this is as good as a mechanical groupset has ever been.
Mr Ryan This review is for the 46-36 Ultegra 6800 chainset. I recently upgraded the groupset on my gravel bike from 105 to Ultegra. I found I was using it more than just for winter training so when the cassette, chain and chainrings wore out I decided to upgrade. Having a 50-34 chainset and 11-32 cassette, I had also found that I hardly ever used 50/11 or even 50/12, and that I was forever trimming when changing between the chainrings due to the maximum gap of 16 teeth. After a bit of maths I decided that by going to a 46-36 on the front, and an 11-34 on the rear I would only lose the two configurations I never used (36-34 is the same as 34-32 so I retained my low gear). The 6800 groupset has been superb on my road bike and with the R8000 incarnation released, the 6800 was going at a cracking price. So, how has it been? Best decision I ever made on a bike build. Ultegra 6800 is superb. I cant say if R8000 is better but I have found 6800 to be faultless. I also find that switching between 46 and 36 is just like changing one gear at the rear so you can swap chainrings as part of shifting up and down without big jumps causing you to trim. I do bottom out at 46-11 sometimes, but im not a speed freak and I never feel the need to have another gear. This also means im using more of my sprockets so they will last longer. As a side note, I have fitted an Ultegra RX800 rear derailleur with a clutch to cope with the 34 sprocket. I dont find the clutch hinders shifting at all, and it has eliminated chain slap, and makes the ride quieter. It has changed my view of gearing so much, that I have just bought a 46-36 6800 chainset (while are still available and cheap) for my road bike along with an Ultegra RX800 rear clutch derailleur.
Mr Grant I love this chainset. Never misses a shift, never dropped a chain in 5000 miles of riding. I have a 34 tooth inner chain ring and a 46 tooth "big" ring. Works really well for my old legs. Never spun out the 46x11, perhaps if I descend off Mt Ventoux or something I would manage that!? but over about 50kph I just tuck and coast mainly.
Mr McCarthy 52/36 as a 1:1 replacement. Ultegra provides a great performance/price point...all the better with Merlin discounted pricing and prompt delivery. Would buy again without hesitation.
Mr Stretton Direct replacement for a crank that had done 5000 miles. Works perfectly straight out of the box.
T. Lee Just received this crankset for my older TT bike to replace FSA Gossamer crankset. I already use Dura Ace 9000 cranks on my road bike and I know this will perform just as well. I've also replaced the chainrings with Rotor Q-Rings (Shimano 110x4). Had no issues with placing this on Shimano Ultegra 6601 BB. The FSA Gossamer was a really tight fit and didn't spin as well as this new Ultegra crankset. Plus, it looks great!
eabe I have bought this chainset to install on a new bike. I had the option to pick the old Ultegra 6800, the newer Ultegra R8000 or the premium R9100 chainset. From my research, there is not a lot of performance gain between the 6800 and R8000 and the R9100 was too expensive for the weight saving and added stiffness. Based on these factors, the 6800 chainset offered the best benefit for the cost. Installation was straightforward and after carefully setting up the chainline and aligning the derailleurs, the chainset performs flawlessly. Shimano chainsets, IMO, offer the best shifting performance especially when passing the chain from the small ring to the big ring, the ramps carved into the chainring work really well. The only downside (and the reason for taking one star from the review) is weight. These are not the lightest out there and even the Dura Ace chainrings are considered heavy for the weight weenies out there.
Rob Duane I give this Ultegra 6800 chainset five stars, only because Merlin doesn't offer more. Against my better judgement, I let a friend talk me into a compact crankset when I first ordered my Ultegra group set from Merlin. It took only a few rides (barely 100 miles) to realize that compact is not for me, so I ordered this crankset (175mm, 53/39) to replace the compact. After just one ride I can say I am 100 percent satisfied! The price is right and the quality is Shimano and Merlin high as usual. It is the perfect fit for my group and gram for gram, the best deal on Merlin's website.
Mr Presto This 36-46 cranks is perfect for the gravel bike I just finished. It works perfect with the 9100 Dura Ace shifters and front derailleur.
Mr McNiff Classic Shimano quality and a great bang for the buck. Looks great too. Not as posh as the carbon SRAM stuff but it's a straight 24mm spindle and I love that.
Marlow Quality chainset. I wanted a compact for my new bike as there are too many steep hills in County Durham for an old man's legs! Only sponsored athletes use Dura ace, this is just as good. Very competitive price from Merlin. Delivery was fast and reliable as always.
Gzepi Very light, small step down from dura-ace. Worth every penny.
Jackson Have both the 165mm and 170mm Ultegra 6800 chainsets - both ordered from Merlin. Installation is dead simple. Make sure to seat the set tab, finger tight on the preload cap, and then alternate crank arm bolts until 14-16n/m using a torque wrench. If the set tab doesn't seat, tap lightly on the right side crank to seat the assembly more fully. Once it "clicks" in, you can tighten the crank arm bolts. Check the bolt tightness a couple of times after riding for a while. Most likely, you will have to tighten them up a little bit, but once they seat, you are good to go.
Mr Korotkov Very responsive and very light. I love how easy hollowtech is to install. Axle came already greased and so did the matching bottom bracket I ordered which was convenient, I trust factory grease more than my own.
Mr Kodama 52-36 combination is excellent. Along with the good looking design, this is a best seller!
Hartstone Top quality Shimano product as always, not quite as light as DA but still a great looking high performance/high value chainset
Mr Travis As a replacement crank for one which had 6000 miles of solid pedal power, I stuck with the workhorse.
Mr Sandoval So I ordered this crankset with an ultegra Bottom Bracket and ultegra cassette to match. And WOW!! the difference in stiffness in these cranks is amazing from what I was running, way better, and stiffer. Everytime I pedal, sprint, or climb, I have a huge smile on my face. Excellent crankset 10 stars, oh and buy the correct Bottom Bracket. I got a 52/36 and 11-28 on the back, great combination great for fast flat training and awesome on long climbs and sprinting. And of course it was shipped here to the U.S.A in like three or four days that's fast thanks merlin cycles for giving me a pleasant buying experience through merlin cycles.
Lee Replaced my FSA gossamer crank, shifts much better and looks nice too!
CHEROKI Very light and shifts from one chainring to another with ease! Price is a steal considering the quality of the product! Well recommended!
Mr levy Bought this to replace my Rotor crank on my cervelo s3. Lighter and stiffer and super slick shifts. Oh and from Merlin it was cheaper than new chain rings and got here in 48 hrs and I live in Guernsey! 10/10
Mr Boroughs This is one of those parts that works so well that you immediately forget it's on the bike. Perfect shifts, no creaks, stiff and light. I'm using it with a 10spd drivetrain.
Rattz Evans Great price, nice and light, why go Dura Ace when this is pretty much as good? Great service by Merlin Cycles as ever, fast delivery and well priced. No issues whatever.
Mr Simpson Opted to go for this over a SRAM chainset as it offers the opportunity to switch the rings between compact, standard and mid sizes. Excellent value for money, good performance and practical to boot.
Morton Great chainset and an improvement on the FSA fitted as standard on my ride. Smoother changing, better looking and liking the 52/36 combo
Mr clark Excellent quality item from Shimano. I used this to replace the standard compact chain set on my 2013 10 speed ultegra. Fitting was a simple straight swap and there were no issues shifting once the front mech was set up. It was a pleasure to ride to work this morning.
DAW Great design, particularly the 4 bolt pattern allowing compact or standard chain ring sets to be mounted. Works beautifully with my old Dura Ace 7700 front derailleur and my 9 speed chain (and 9 speed rear cassette).
Just Enough Loving my descending the compact wasn't enough so I bought the 52/36 for a little more range at speed. 6800 needs no introductions, it is full on excellent, precise, light, stiff. Ordered at 14:15 on a Thursday, landed on my desk 9:30 on Friday, my first Merlin purchase and based on that turn around not my last!
Mr Pfeiffer Stiff and light chainset. Allows the power to be transferred where it needs to go. Easy to fit with instructions from Shimano's website. Looks especially good with a black carbon frame.
Tim Quinlan Stiff, improved shifting. No surprises. Shimano quality. I have 105 shifters and derailleurs. Even with the lower end controls, this chains shifts up/down very nicely.
Mr Silva Awesome crank, huge upgrade compared to my FSA mega exo crank. Light and very stiff to transfer power when going hard. Make sure to buy Ultegra BB as well.
Eric Jackson This is just a great crankset. I like the look and the stiffness. The shifting is superb with the DuraAce Di2 front and Ultegra Di2 rear derailleurs. Installation was very simple - crazy simple. Don't hesitate to purchase this from Merlin. I replaced a 175mm crankset with this 170mm and I am very happy with it. I am an older rider and the 170mm is nice for me - I can spin them easier than 175mm.
Mr Shane This crank has a better q-factor than 105, due to a different spindle design. Benefits are two-fold. First, less chance of shoe-rub than 105 5800. Second, they look a bit more refined. Shifting is awesome and crank arm stiffness is top-notch.
James nolan Looks good and is really stiff! Would recommend it to anyone
Mr King Shifts smoothly with my KMC X11 SL chain
Mr Bennett The new 6800 series Ultegra Chainset is amazing! I am swaping my 6700 series out as an upgrade to 11 speed and was very surprised at the difference in weight, noticeably lighter! The quality is superb with the finish and engineering that you come to expect from Shimano. The way it is packaged by Shimano is also fantastic - really looks like a premium bit of bike gear has arrived. The fact that this chainset allows gear ratios to be changed easily is also a great bonus. A fantastic and cost effective offer that would suit 99% of cyclists!
Mr Chamberlain Superb piece of Shimano equipment, light, strong very good quality and surface finish. No burrs on teeth which I have seen on other brands. Attention to detail is excellent.
Mr Bussey I had dropped from a 10 speed Dura-ace 53/39 to a 10 speed 105 50/34 but just could not get on with the 34 tooth as regardless of changing the cassette at the back for different ratios, the gearing was just to low for me. When I noticed Dura-ace had bought out a 52/36 for their new 11-speed range I knew that would be better ratios for me. However I didnt want to pay Dura-ace prices hence this purchase. Turns out it is only 22 grams heavier than my old Dura-ace one anyway, so money wise its a no-brainer. Easy to fit with the Hollowtech system and once I had set it up, it changes up and down like a dream. My only criticism..? Its a blooming ugly looking thing! A great price and delivery time from Merlin as usual.