Tire suggestions for my Giant Revolt 2
 

Hello all!

I’ve been riding my Giant Revolt 2 and love it! Lately I’ve been riding with some friends, whom all have road bikes.

thinking of swapping out the tires to some road ones. Wasn’t sure if to go to 25c or 28c. Currently on the stock S-X2 wheelset which is 19mm in width.

Any recommendations? Thanks in advance!

Love my 32mm GP5000s, wouldn't go any smaller, you're not going to be giving up any noticeable speed. :thumb:

Ok cool. I’ll check that out. So I guess 32 is better Because Gravel bike tend to be heavier.

Im just trying to get faster to keep up with them.

Ditto - I was doing a race training ride on my gravel bike last night. Ave speed about 25mph, sprints over 30, max sprints just under 40mph. No compaints riding my gravel bike with the lycra boys when I'm on the 32mm GP5000s.

Going smaller just increases the chance of rim strike. No benefit in that. Besides, I'm probably running 1/2 the pressure of some of those guys, and on our roads that is a definite advantage (I seem to see at least one of the group getting a flat every week).

ahh. Thanks for the response. I’ll have to check out those tires then.

The gravel bike has been fun tho. I like how I can ride through around the lake with ease. It’s the punctures that worry me with road tires.

They are a lot faster than the conti 4-seasons I was using before. I have both tubed and tubeless. They are constructed a lot differently (the tubeless is fairly beefy in comparison), but I don't worry about punctures with the tubeless version. Performance wise, they are the same.

I found some on amazon so hoping to get a good ride in this weekend. What PSI would you recommend?

For those of you using GP5ks in 32c, can i ask:
(a) what's your rim inner diameter
(b) how wide do the tires measure when inflated?

Thanks!

These!! I run these on my TCX. I will never go lower than 32mm now. Love them. They don't feel any slower than the 28's I was running. They help take the edge off as well.

I am between 180 and 190 lbs and I run the front at 70psi and rear at 75psi. I'm trying to get it dailed in myself. This felt great on the last ride I did with them. I have done psi calculators and it shows to go even lower, that makes me nervous though hahaha.

nice! Well I’m about 235 lbs. Would I go higher or lower?

The heavier the rider, the higher the PSI. This is because more weight is pushing down on the tire.
With that said, there is no right or wrong in PSI- it is up to the rider what they feel comfortable with.

My main road bike has GP4k tires that measure to 31mm. I have been 215-240 over the last couple years and ride the bike with tubes at 80psi rear and 75 front.
I mention this since the tire and my weight is roughly in line with you.
But keep in mind- I could probably ride them with 70psi rear and 65 front...but I dont have an interest in experimenting a bunch. I like the tire feel at 75 and 80 and I almost never get flats, so I stick with those numbers.
Its really all trial and error though.

I'm guessing you are refering to the 28mm GP4k, which measures 2mm smaller than the 32mm GP5k (on my wheels)

Those they be.

My pressure is dependant on my weight, my wheels, and my terrain.
I'm running them on hookless rims, and both Conti and the rim mfg are explicit not to go beyond 70psi hookless.
If I'm road racing, I'll do 50 front, 60 rear
For mixed, I'm 40 front and 60 rear.
If I'm on gravel, I'll do 35-40 front, and ~45-50 rear.

For you specifically,
The CX guys have it right - ride until you bottom out on the rim, then put a little more in. But, that is extreme (and works best if its a rough terrain).
Start with reading this to see how pressure impacts speed on that tire: https://www.bicyclerollingresistance...000-comparison
and look at this chart (I look at this as near the minimum pressure - sometimes good for gravel.
https://cimg7.ibsrv.net/gimg/bikefor...4ce0144a99.jpg

32mm GP5K
ID 22mm
size: 33mm

(the 32mm 4 seasons measured just a bit over 35, )
(the 28mm GP4k measured 30mm on 19c, 31 on 22c)

I have them on 17C rims and they measure out to 32mm at 75psi (32.05-32.1 to be precise). I had them on my 19c rims briefly and they measured a hair over 33mm. Unlike GP4Ks, the 5000s are def more true to size.


I'm about the same weight, usually around 185lbs, I've been working my way down, I've run 60f/65r without issues, but that was also on an easy recovery ride. I've been running about the same around 68-75psi for group rides and harder efforts, just in case there's a hole I don't see in time. Haven't pinch flatted yet, fingers crossed.

I dont have the Conti GP5000’s on my Revolt, but they are on my road bike and they are superb.

Are you looking to replace wheels or just tires? If you want to get rid of the wheels, I might be interested in them. I just got a revolt advanced 0 and going to put the GP5000 32mm on. Seems like the best bet for a tire.

Thank you! I have 21mm ID rims, and so the 32mm GP5ks should be right at around 32mm. Perfect.

I'm running GP5000 32s on Hunt 4 season wheels for my road rig now. Nicest riding road tires I've ever been on, and by a long ways.

I've ran the over sized gp4000 28c which is like 30 mm

I also currently have the tubed gp5000 28c on my Supersix,

I'll throw a vote in for the gp5000 32c tires here based on my experience of riding what I've ridden.