John Rye GP4000s have been (were) the world top benchmark tyre for several years (2013-2019), combining the ideal set of characteristics for the long distance cyclist. No longer manufactured now (which I why I bought 4!) - the replacement (5000) is less robust. These 28-622 tyres come up 2mm wider than specification (on 15mm internal width) rims at 90psi. Take care that your bike has the necessary clearance, including when mudguards are fitted.
Robert Still the best tyres you can buy at a great price from Merlin
D Matthews Great, fast rolling, 28mm tyres. No problem with punctures despite riding during the winter months.
Mr Diokno Bought this to replace one that is almost brand new but got slashed by a loose rock on the road during a mountain climb after a rainy day. The sidewalls on these tires are not so durable. I almost switched to Gatorskins but I want it to match the rear tires. Other than that, this is a fast rolling tire. Fast delivery from Merlin to the US.
Mr Chapman The only tyres I use
Mr Hesketh High quality road tyre. Rolls well, good puncture resistance, average longevity. 28mm size seems extra large compared to other brands,
Woodsy A great tyre that has been around for a while and continues to perform well.
Graeme My tyre of choice all year round.
Mr roberts This tyre is a quality product and a popular tyre with cyclists. Good puncture resistance and I personally get 5000 miles plus out of these tyres. I would recommend
Justin Dependable GP4000s. Superseded now by the 5000s so these are cheaper and work just fine. In our ride group, if you get a puncture and you’re not using GP4000s (or 5000s), expect to cop flak.
Heinzy This has been my tyre of choice for the last few years. It's light with low rolling resistance and good grip. It has been superseded by the 5000S which is expensive so this is a good time to buy new old stock of the 4000S at a reduced price while stocks last. I have bought 4 - 2 on the bike and two for next year.
John P My preferred tyre as it gives great feel and connection with road surface.
Quinn Great tyres at a low price. I only wish they would keep making these.
JRAPRX Since I've tried the GP4kSII, I never looked back. I like it better than the 5000. Sorry 5000.
Mr Bracken The GP 4000S II's are great tyres. They offer light weight, durability and good levels of puncture protection. I have been using GP 4000 series tyres for quite a few years now. Excellent price from Merlin Cycles and fast delivery too.
Bev G.O A great road tyre, tough and durable. Have these on all my road bikes and (I hope I’m not speaking too soon) and never had punctures with these tyres. I ride about 5-6k miles a year
Mr Robson The tyres I wanted weren't available in the other usual places, thanks Merlin - a hassle-free and speedy service.
Mr Ender Great Value Tyres.
Clivers Great tyre! Shame continental have stopped making them.
ERICH Great tires. Too bad these are being replaced by a newer model... nice to still be able to find some at Merlin Cycles.
Mrs Kidney Super service, exceptionally quick delivery. Very reasonably priced too
Mr Upegui great deal
Mr Kaye Dreat tyres, offer so much more grip than my previous ones! Also top delivery from merlin, prompt and efficient.
Eleanor I love Conti tyres and I've been using these 4000 II on my daily-training wheels for 2 years now. The new 5000 is out but I'm happy to wear these out before making the move to the new 5000's... I'm running 23's on the rear and 25's on the front.
Mr mansfield Still a great tyre for all round use. Even manage a bit of gravel from time to time only had one puncture all summer.
Mr Iwanaga 28Cタイヤの中でも軽量で、耐パンク性能も高く安心して使えるのがいいですね。
Mr Taylor Light, fast and puncture resistant. For the money there is no better tyre on the market.
Michael Bought these as replacments for my old tyres (GP4000 S2's) which will need changing later this year after 6k + kms. and zero flats so far, why would I use anything else?? Great tyres.
Gareth As always, a great service from Merlin Cycles. Fantastic tyre - grippy and fast rolling with excellent durability.
Mr burrell Fantastic all-rounder. Rolls well & good longevity
Mr Hinds Been using these for a few years now and although after a sketchy start with 3 tyres unexpectedly going bang for no apparent reason I stuck with them and glad I did. A really good tyre with excellent grip in dry weather and also from my experience, no real loss in the wet. Ride them all year round on all bikes. Highly recommended, although due to good experience, do I jump to the 5000??
Andy My go-to tyre for training and racing.
Mr Counsell Using these tyres for 5 years now. very few punctures and lots of KOM's !
Paul Used gp4000's for years last a long time and very few punctures, always prefer to buy from Merlin if they have the stock
Mr Howard Last set wore out and I think I had one puncture in 4yrs!
Jake Replaced old Gp 4000s ii after lots of use. Grippy and puncture resistance can't complain.
Mr Evans Good grippy tyres, only had a few weeks now but no punctures.
Chuong I've always wanted these tyres, but they were $90. Now that the GP5000 are out and is only slightly better, I think I will by a few more sets while they're in stock.
I bought the 28c, but they do seem a bit wider than my previous 28c (Michellin Endurance).
Rolls very well and the grip is really noticeable around corners.
Mr Spurr Great tyres. These are just tops. Good for wet,
Dry, summer, winter. Decent amount of puncture protection.
Charley in Oakland Love these tires. Before you switch to the new 5000, read the reviews. The 4000 has slightly higher rolling resistance but also better puncture resistance. Given the state of California's roads, I'll take the 4000. Merlin's price was terrific. Transatlantic shipping was fast and flawless.
Arm My first impression of these are that they roll very smoothly and I feel less road vibration. They seem like a well-constructed, good quality tire that's great for training and/or racing. I used to always use Vittoria (Rubino Pro, Open Corsa CX) but these tires are definitely tempting me to switch over.
Mr Taskis Used Conti Grand Prix for years and always renew with the latest version available, great rolling resistance and puncture protection. Service and price from Merlin is consistently good.
Denis Excellent winter tyre. Good puncture resistance. Grippy in the wet
Casey Excellent road tyre. Prevents punctures and grips the road superbly. (Haven't tried the 5000 yet but it must be a hell of a good tyre to be better than the 4000 - and twice the price!!)
Mr Farrington Good all round tyre. Have had a few flats on these but no more than other brands plus they offer decent grip and weight.
Mr Lang These tyres are the best! One puncture in 10,000 kms
Douglas Very good handling, durability and weight for my type of riding- club, centuries, non racing.
Mr powell Used other brands over the past 20 years but this tire is the best for wear, rolling resistance and resistance to flats.
Lisa So far so good. Put these on 2 days before my first half ironman and felt smoother than I`d been all training season.
DavidJ Riding 700 x 25C, 100psi (front) + 110psi (rear), weight is 120 lbs.
Great tire for training rides. Easy to install & excellent puncture resistance. Wear indicators are still present after 7000kms!
Mr AB RASHID This one is a must for every road cyclist. Easy to fit, when on road, you feel less vibration. Easy on cornering. I haven't try on wet surface yet. My previous tire is Conti Ultrasport II.
Mr Dudley-Marling Conti 4000s have been my preferred tire for years. These tires have excellent rolling resistance and offer superior puncture resistance. They are expensive but when they are on sale -- which they often are -- they're an excellent choice.
Nathan Still my favorite road tire, rolls fast but is grippy in high speed cornering.
Mr Campion This must be one of the most popular road tyres out there and with good reason. The GP4000 is my standard for my summer bike and has served me well over many miles of leisure riding (over typically rough and pot-holed North-East roads).
Michael These are my go to tyres of choice for reliability and speed. You won`t regret buying these, I have had 3 pairs now and all lasted well with good puncture resistance.
CHRIS Fantastic road tire. I didn`t think a higher end tire would make a difference. Well, was wrong. These tires are a necessary upgrade if you are using inexpensive, entry level tires. I actually feel like I`m faster while putting in the same effort! They were a little difficult to get onto the rim though. Besides that, best tire I`ve ever used!
Daz Miller I had one of the sidewalls split on one of these tyres but it hasn`t stopped me from buying again. Merlin was the best price on the internet
Mr Giguere I'm riding these great tires since many years. They are light, rugged, durable, and provide a smooth ride.
James Looks good and the reports are good. I had 6 punctures in 4 days with schwalbes........I am looking for the reputation of Continentals to continue.
Mr Dovidavičius One of the best allround tyres, be it racing or in training. Great rolling resistance, puncture protection and durability. Don't recall getting a flat last year (about 6000km on road bike).
ANTHONY The tyre I keep coming back to. I've tried many alternatives, but this is the only tyre that gives me total confidence descending at high speeds and still has relatively good puncture resistance and wear characteristics.
Mr Quain Quality tyre, can't go wrong with these.
Timothy Changed from gator skins and never looked back. Still good puncture protection but much better grip.
Joe A classic that never goes out of style. On my 3rd set for 3 different bicycles.
Mr Dilsizoglu I had a couple before. It's time to change the rear tire. I added one more on the order list. You can not give up those tires that have excellent grip and rolling resistance. Thanks Merlincycles.
Mr Davis I have been using these for about four years and have been very happy with the ride quality and puncture resistance (haven't had a flat yet.). I also find they're very easy to get on and off my rims. However, my last GP4000SII on the rear only lasted 3400 km, about 1000 or so less than usual. I hope the replacement will give me a little longer service.
Dr Wesner Best tires ever! Wonderfully fast shipping and excellent service all the way to Texas! Thanks guys!
Allan S. I'm less than a week in using these Contis, having switched from the Vittoria Open Corsa Evo CX Folding Tire I ordered here 17 months ago. The 4000 S II in comparison to the Evo CX is notable, namely the Contis handle sharp turns better and has higher climbing capacity. My ride times have dropped by a few minutes.
I ride in Oakland and San Francisco, CA mainly, meaning glass and construction debris are my tires' worse enemy. The thicker material works great in combating it. The increase in weight is hardly noticeable.
Oh, and of course, Merlin has the best prices hands down.
David The go-to tire. Runs fast and surprisingly flat free for the last 2,000+ miles.
Andrew M Awesome tyres - great grip, low rolling resistance, and excellent durability - I got about 10,000 km on my last front tyre.
Daniel Favorite road tires - good longevity - good grip - a bit of a challenge to mount on some rims - but good tires.
Mr rosen The Best! Great handling, long wear and puncture resistance, lightweight, and and at an excellent price. What's not to like?
Brett Always reliable
Mr Sensoy Great tyre and very good puncture protection and grip. I do unsupported without carrying spares and can`t recall a problem. A 10 from me.
Mr Mardini This is my third set. Excellent tyre. More than 6000 km/rear 12000km/front. Highly recommended
Mr Drinkwater Great tyres - you really can't go wrong with them. One nice point is that, when inflated, they are slightly narrower than other 25mm tyres I use (Vittoria Open Corsa and Schwable Pro One) which is great for one of my bikes that has limited frame clearance as there is no tyre rub.
Mr Madrinan Great tires, anti-puncture system very effective.
Gasparac Great tyre, have used this model for many years. I never get flats, very strong.
Mr gilmore Bought these as have heard they are the gold standard. They are light and very well manufactured with obvious puncture resistance. Went with 23mm for an intermediate rim width and they come in big so did not feel need for 25mm and save some weight. Have had good experience of the plain grand prix so expect these will be an upgrade.
Mr Chaves Barboza Junior Continental Grand Prix 4000 S II 700x25 is very comfortable, weight is not a problem (same level as other brands / models of tires), it has excellent protection against bores and requires few Watts to spin in comparing to other tires.
Mr Cushing These are my favorite all-around tires with low rolling resistance and good traction on wet roads. There are better puncture resistance tires but I have confidence with the GP 4000 for races or training. I love these tires and they are worth the price.
Jung I always use this tyre. And everytime it is good for me.
Zolotarevskiy Great wearability - I got about 3,000 miles on the last set., They are not as prone to punctures as other brands I have tried. Hold pretty good pressure with minimal loss.
Mr Meyer Tyres are great: my first pair of 700 x 25 and checked many reviews; after putting them on my bike, the same ride I have been doing for months; I increased my ave. time by 1 mph faster!
Donga My preferred racing and training tire - lower grade Masters, so I just want it to be quite quick and durable.
Mr Kenc The low rolling resistance is easily noticeable. My bike is much more responsive since I put these tyres on. They grip the tarmac very well. The rear tyre won`t skid that easy when braking anymore. But you should be very careful on wet conditions in the first rides. They won`t grip the wet surface at all. But they work ok after some 100km or so. 25c version is actually 27.5mm wide on a 17c rim.
Clinton Simply the best tyre. Essential puncture protection for Uk roads.
Koji Softer than expected (23mm), but good combination with stiff Racing Zero.
McKinney These are great all year round tyres. I have rarely suffered a puncture even when commuting country lanes through the winter.
Andrew M Great tyres. Low rolling resistance, and my current GP4000SII's have 4500km on them and still going strong - even on the rear.
Mr Cunniffe These were purchased as direct replacements of a previous pair I have done many, many miles on and been well pleased with. Got a 2,500 km tour next month so decided fresh rubber would be a good idea.
Mr Wilmotte Thanks to Goathead thorns I was averaging one flat for every 30 to 40 miles on my stock Kenda tires and now have put about 100 miles with no flats. Only time and mileage will tell but I'm optimistic
Barrauxboy Great tyre, fast, secure and very resistant to punctures. I cannot fault them, save for the price! This is a repeat order though, they are that good. Highly recommended.
Mr Best I have gone through a number of these tires over the years. For city riding, they are definitely my go-to tire.
Guv Great all round tyres, suitable for both training and racing. Excellent puncture resistance and really good grip in the dry and wet.
gMoney Continental Grand Prix 4000 S II are my choice for road cycling tires because of where I ride. With a mix of both urban and country roads on a lot of my routes which I ride, I need a tire that provides both superior puncture protection, and low roll resistance . The Continental Grand Prix 4000 S II tires deliver both.
Mr Lang I use GP4000's on all of my bikes. Very reliable and make for a confident ride. I normally use 23mm but have started using the 28mm on my commuter. Much more comfort with little or no difference to road resistance.
Shelton Has been my go to tire since they were released. Great traction and have yet to have a flat...
Tiffany I got three flats in a row before I changed to these. No more flats!
Mr Lockhart My favourite all round tyre, great puncture protection, excellent grip and long life.
Mick M Great tire - excellent grip in corners wet or dry, good puncture resistance and good supple feel.
Hall Awesome tires. Roll fast and smooth. Pretty fat for a 25.
Dr McKechan Excellent tyre and since I switched to these a few years ago, doubt I would buy anything else.
They noticeably roll fast - have had to brake when following my friends on descents.
My last pair lasted over a year, without many punctures.
Only 4*, because it's really hard to find the rotation direction arrow.
Ginsterdrz The only tyre I use and trust for racing AND winter training. Grippy, reliable and the best value from Merlin with next day delivery.
Mr Tesmer Continental makes a great tire in the Prix 4000 S II. Seldom a flat and great feel for a clincher.
Mr Feld Good happy medium--good road feel with good flat protection. Road feel isn't up there with Veloflex or Vittoria but it lasts a lot longer.
Kataoka Pretty solid choice for peace of mind! Very resistant to puncture! Just made 2000km with one puncture (a small glass got in a tiny hole made in some point during my rides). And it was so small that I could ride 30min to get home and fix.
Toby Originally bought a pair of these for my new Giant Defy last year having run a pair of the original GP4000s on my first road bike & instantly gained performance (rolling speed & grip) over the Giant tyres supplied. The addition of the Vectran breaker lets me relax going out on the longer rides that only a really extreme road issue is going to compromise the tyre. (In this case, the re-purchase is due to a screw which left a fairly large hole in the tyre). In 3 years of sportive & training rides, the screw incident is the one & only puncture suffered on these tyres. Highly recommended.
Mr Tossany I've used this tire for thousands of miles already, and bought this one to replace a worn-out rear tire. Couldn't be happier with its performance - very fast and smooth for racing, while still strong enough to prevent punctures. In ~5000 miles of using this tire on various road surfaces, I've only ever had 2 punctures, and both were pinch flats.
Overall, an excellent tire, and I could not be happier.
Shedheadarabia Fantastic tyre. Puncture resistant, good rolling at speed and hard wearing. A must for dry roads.
Mr Rye Nice grippy tires. I can really lean the bike in the turns with more confidence.
Mr Leskovec I have used Continentals for 15 years. Always a good tire in the 3000 series and now with the 4000S II. i have ridden in all kinds of weather and have never had tire problesm and flatting issues with any Continentals.
I'll buy them forever!!
Mr Garza Great all around performer. Reliable and durable.
Mr Dawson Much softer and lighter than the gatorskins. Goes around corners very well
Mr T My favorite tyre for many years. Just the right blend of comfort and speed. Easy to get off/on. Best price on the planet.
IanMT A noticeable improvement on the Schwalbe Luganos I was running. FIngers crossed, puncture protection seems good so far too.
Mr Burrell Best road tyres for the money. They look great and provide fantastic grip. I'm not sure what is different between the old GP4000s and these, the GP4000s II but I will certainly buy another pair when required
Mr kholia Always used these tyres. Did LEJOG not a single puncture!! Shame they don't do the colours as before. Great service from merlin as well
Eddie Adams The only tire I have ever used on my road bike and I see more of these on other bikes on group rides than any other.
Mr sun Continental tyre is my favorite tyre, last long,goog performance in both dry and wet situation
Mr Watson Great tyres, used first for 100k sportive to 'run them in'. No problems, easy to fit on my new Shamal Ultra wheels without levers. Have used version 1 for many years and I hope these new SII's continue to be as good. Highly recommended.
Mr Jarrett Hands down the best performance clincher on the market. Excellent all around performance. Superior rolling resistance, cornering grip and solid puncture protection combined with decent tread wear. The only downside is the harsher ride quality compared to other tires..but the trade off is worth it.
Mr Gormlie Excellent grip and seems to have improved on previous version
Dave1706 Great tyre, excellent price. Tyre was easy to fit and the ride is really good. Will definitely buy again.
Mr Gooding Have had the GP4000 S before and have always been impressed with them. The delivery time from ordering on line to receiving the goods was impressive.
Mr Knight I've run the GP4000s for last 12 months and have covered nearly 4000 fast and trouble free miles. If anything these seem to roll even quicker and whilst I've only covered 200 miles I'm hoping they are as reliable and robust as the originals.
Scott Been using Conti's since the GP3000 days. They are a perfect combination of fast, light, and durable.
Mr Smith Great price for a great tyre, I use these all season from winter training to racing as the puncture protection is superb and they roll very well.
Mr Low Great tyres, would not change from these now!
Mr Lee Favourite tyre, bought to replace worn out one. Great grip and puncture protection. 25mm is the only way to go with the state of the roads at the mo. Best price on net and and extra few quid off that with the Jan sale .
Mr Wilson A good grippy tyre in the dry and whilst you can't expect miracles in the middle of winter it does seem to grab hold of the road.
Mr Thornton The tires are as advertised. I have ridden the Continental 4000 for years and have now been riding the 4000s II. They seem to give me more miles before I have to replace them with no decrease in speed and puncture resistence.
Mr Massi Why would you use any other tyre...Simply the best!
Mr C Excellent tire! Good wear, low rolling resistance, and no flats (so far)!
warneout Great product. I couldn't believe they could've improved the GP4000s but they have.
Mr Naccarella I weigh around 90kgs (on a good day just less!) Grips well and is very tough. Excellent tyre to use. Have had flats after 3,500 kms and that is the sign that you need a new one.
Mr Jord Excellent tyres. I use them year round and they last a good 5000 miles on the rear. Fast, grip well and durable. Pretty puncture resistant as well.
Mr Jaime F. Silva I've done 7 700 kms with my previous Continental 4000 s. These one seem even more effective than the 4000 s. I'm very happy with them. Truly recommend it!
Mr Avery Love these bad boys. Good mix of comfort speed and grip especially on the 25s
Eddy I changed to 25c tyres at the start of 2014 and am now converted. I run these at 120psi and they are no slower than 23c but more comfortable and with better grip. These GP4000S II's last well but I had a flint stone go straight through the rear in the wet recently. The tyre was ruined as it cut through the breaker belt. Hence buying this replacement. But that could happen with any tyre. These are certainly much more robust than my Schwalbe One's (which I also rate highly). I have ridden these tyres in the UK on bad roads and in the French Alps on fast descents and they feel great in all conditions. I highly recommend them.
Mr Fitton Great winter tyres. Super wet grip and plenty of compliance in the 25 size. Been using these tyres for 12 months now and the only puncture was a pinch flat caused by under inflation.
Tinman Great punture resistence and they seem to last longer than Pro 4's. Although I'd have to say they don't roll as well as the Pro 4's.
Dan H Was recommended the 25's of these tyres by friends for day to day use. I normally ride 22/23's and thought the extra 'little bit' would not make a difference - how wrong I was.... In addition I am told they have good puncture resistance - hopefully I won`t have to experience that bit !! They do make the ride more comfortable and do not seem to affect rolling speed. If going for the 25's make sure your frame can take them .... very happy with the tyres and as always the excellent service from Merlin
Mr Steel I was using Vittoria Rubino Pro Folding Clincher and they were wearing fast so I tried this. This is considerably more expensive and I obviously can't tell how it wears until some time has past, but the rolling resistance is no different to the old tyres, it's all in the mind.
Mr EDENS Conti GP 4000s 2's! Best clincher tires on the market imnsho! Such supple ride characteristics and very quick as well. Just completed a century ride and they most definitely made a positive difference in my comfort level.
Mr steele First time I have seen made in Europe (Germany) in a long time. I needed to replace only one tire, but when I saw the quality, I replaced both. Tire wear indicators are a great feature and will eliminate the guess work from estimating tread life. Overall, appear to be much better than comparably priced Michelins.
Mr Pitkin Grippy supple and confidence inspiring. Excellent value and good quality. I have done about 400 miles on these tyres so far and love them. I will definitely be sticking with these in the future.
Mr Reddy Very good racing tyres, only ever buy these for the summer now.
Kev 65 Excellent tyres, great grip in dry and wet and just give you confidence when riding. Wouldnt Use any others
secteur The only road tyre I now trust for general training. Hard wearing, grippy, fast - just the perfect balance.
Mr Thomas Awesome tyres. Fast and reliable. Well worth the money...
Mr Keeley Tyres are good and grip road well. Particularly like the reflective edge around side of tyre wall. Ideal for that extra visability when turning out from a side junction in low light conditions. Went for the 25mm as less rolling resistance than 23mm. Happy with these tyres so far.
Mr Liu Bought a pair of these to replace a set of 4000S's that had a couple thousand miles on them, and a torn sidewall on one. I'd forgotten how grippy these tires are when new! They provide a softer ride than the gatorskins I had on my backup wheels, and while I have no numbers to back this up, it feels easier to accelerate and maintain speed (lower rolling resistance?). Very easy to mount as well. Was a little worried that the model II would differ dramatically from the original 4000s's, but I think I'll love these just as much.
Mr E So far so good - been through a few 4000s and these seem just as good, great grip. The ultimate all-rounder
Mark Sacks Great tyres, quick and smooth rolling when up to speed. I've had Conti GP's for the last couple of years and have been really happy with their performance all year round and in all conditions. I usually get the 23mm wide tyres and run them at 110psi, feeling every bump in the road surface. I went for 25mm wide this time and what a difference!!! Even at 120psi everything is smoother and more comfortable but with the same confident levels of grip as before.
Mr Fullerton Rolls very fast, has plenty of grip, even on poor quality surfaces, and is very comfortable in 25mm width.
10/10 my new favourite tyre
M2 Wow, what an improvement! Great grip in dry and wet. Loving these tyres. Arrived quickly too.
Mr livingstone Very grippy and looks great with the coloured side strip. Great performance and looks. High quality puncture protection as a bonus.
Richbezza Early days yet so hard to judge, but seem to roll well and give the impression of durability. Grip great so far, had no control issues wet or dry. Asthetically the green versions look great on my synapse as they are a good colour match for cannondale green.