anotherbrian

I’ve been riding with a tubeless Hutchinson Sector 32 on the front of my rando bike and it rides much like the Conti 4K 28mm I had on it before (and still have on the rear).

And I’ve ridden it in a lot of gravel and it has shown no signs of wear, so I don’t think I need to worry about damaging the sidewall like I’ve done on many 4000S’s.

SethAZ 

I just ordered a pair of Hutchinson Sector 32 tubeless tires from Outside Outfitters for $51.93 each, which is much lower than I found anywhere else. I'll give them a try on my new AeroClyde wheels in a week or so when they arrive and let you guys know what I think. It'll be a direct comparison between Compass 32mm extralight tires with tubes to these Hutchinson tubeless, which ought to be interesting. The Compass tires are outstanding, so I'm anxious to see how the Sector 32s stack up.

anotherbrian

I saw you earlier posted in the thread about max tire pressures. The Sector 32s have a max 87psi molded into the sidewall. They measured true to size on my HED Belgium rims and haven’t rolled noticeably different than the 28mm 4000S’s with latex tubes they replaced (and they hold air way better than the latex tubes ever did).

SethAZ 

That's some interesting feedback. Thanks for posting it. If they are true to size then it'll be interesting to see how well it blends in with my 28mm wide rims. The Compass 32mm tires stick out a bit - not too much, really, but a bit. They measure out to a bit over 33mm on these same rims. I guess I'll be surprised if these tires roll better than the Compass tires. That's a really tall order, since those tires are so nice.

Flounce

Sounds like everyone knows this already, but just to emphasize: Compass tires run small, I just ordered some extralight Compass 700 x 28 and they came up 26mm on my rims. I went back and measured my current Conti gp4000s that are 700 x 25 and they're 27mm. I was like WTF. Will be exchanging the 28mm for Compass Stampede Pass 32mm, hoping they will be 31mm.

SethAZ 

After reading this I went out to the garage and measured my two Compass Stampede Pass tires with a digital micrometer. They're on rims that are listed as 21mm interior width (28mm external). The rear one at 90psi measured out at 33.5mm, the front tire at 70psi measured out at 33.4mm. Hope this helps.

johngwheeler

I've tried the Vittoria Voyager Hyper on another bike, and they are indeed quite good. IMO they don't roll quite as fast as the Conti GP4K, but they're probably a good choice for commuting. I still have quite a bit of wear left on one set, so I could try them again and compare them on the same bike that currently has the Contis.

johngwheeler

I think my rims ar 19mm interior. The 28mm GP4Ks measure just over 30mm at about 70psi. It's not bad for most conditions, but I do wonder whether more volume would make my ride more comfortable. I go over a quite a few patches of broken tarmac on my commute and if I get my line wrong and go down a hole, I often think "oof! I wish I had fatter tires!"

trailangel

Why so hard? Buy the Conti 4 season tires in 32mm

johngwheeler

Yes, this is another option! I had a rather negative impression of the 4-Seasons for some reason, but after doing some reading, I think I must have confused the negative press from reports of the Conti Gatorskins.

The 4-seasons do appear to have about 6W more rolling resistance per tire (@80psi in 25mm size), versus the equivalent sized GP4000SII, but also allegedly have better puncture protection and superior grip in cold or wet conditions (due to different compound).

They would certainly be worth considering - thanks!