Continental

After almost 13 years of riding on 28mm (32mm Black Edition since 2017) GP 4 Seasons exclusively - with tubes - I am a late adopter to this tire. I've used tubeless for as long as I can remember for gravel, but have been reluctant to use it for road. I transitioned to a tubeless GP 5000 35mm AS/TR setup this year and will never go back. Running the lowest pressure I've ever run, rolling faster than I did with tubes, and comfortable while I'm at it. Although 32mm would be better aerodynamically, I don't race and really enjoy the extra width for ride comfort. Now have this tire on all of my bikes / road wheelsets.

Last but not least, the Black Chili compound makes for some insane grip. The "Lazer Grip" design extends this compound over the shoulder of the tire. Hitting corners faster than ever. When deep into a turn at speed, these tires make a very satisfying squealing sound from the compound gripping the road surface. The tire absolutely carves corners in turns, and scoops the road under power. Pricey but 100% worth it - tires should never be skimped on.

You may finally be able to ride your gravel bike in B or C road rides. The wet weather performance is superb. It's 40mm and that's enough to transition through gravel sections are good speed or ride longer gravel tracks at modest speeds. For riders above 170 pounds, you might have to put out an extra handful of watts on a road ride while being in more comfort.

Real World results: Typical loop was 1 to 1.3 mph faster at the same wattage as my 45mm full gravel tire.

Bought these to pair with Pirrelli smartube TPUs. I just finished a 4 day touring ride. Portland-Pacific city-Waldport-Albany then back to Portland. Can't say how much glass, gravel and debris i ran over and the tires held up well. I did however had 1 flat, ran over 1-1/2' fencing staple which was unfortunate and cannot win against it. Yes, i could have ran with a tubeless set up and used a plug but I didn't want to mess around with messy sealant, pack extra tires on a touring ride. TPUs is so much lighter and very packable.

I'm on my 2nd set of GP 4-Season tires. For many years I used the GP 4000, then their replacement GP 50000. I 've had very good experiences with them. However, my fingers aren't as strong as they used to be and I find them difficult to mount on my DT Swiss wheels, for the rare flat repair or at replacement time. I read that the GP 4-Season tires were easier to mount, so i tried them and found it to be true.

I'm an older recreational rider, typically riding 20-40 miles on mostly chip seal county roads. So, the 4-Seaon tires may be slightly slower and heavier than the 5000 tires, but I don't care. They are very flat resistant, last many miles, and I find them easy to mount. I'm sold