Butterthebean

hello all....I consistently have trouble mounting tires on my Rhinolite rims. I'm using bontrager 700x28 tires, and no matter what I do, I can never get the tire mounted without some portion of the tube getting under the tire bead. When I inflate the tire to over 100 psi, there are vertical bumps in the tire, and you can see where the tire bead is slightly raised when looking from the side of the tire.

At minimum, this makes for a slightly bumpy ride, and at max, I can see it blowing the tire right off the tube.

I am pretty much a tinkerer in the garage...I don't know everything about bicycles but I've learned by taking them apart and putting them back together again over and over...but this tire mounting is giving me trouble. I've tried new tires and that doesn't help. I also have the same problem when mounting tires on my wife's Raleigh...so I assume it's just something I'm doing wrong.

Either way, what is the secret for getting that tube all the way into the tire and not under the tire bead???

s1nglespeed

After installing the tire (and while the tube is still completely deflated) I usually work my way around the wheel 2x, pinching the tire and pulling it up, away from the rim. This seems to help guarantee that there is no bit of tube stuck under the tire. It would be dangerous to ride under those circumstances. The other thing you might want to check is the size of the tube ... does it match the size of your tire?

Butterthebean

yes...I use 700x20-28 tubes.

The thing about this Rhinolite rims, any tire I put on them is extremely tight. I need two levers to get it on and off and it's still tough. I've broken many plastic levers doing it. Trying to pull the tire up once mounted is next to impossible. I can pull it back enough to see the tube protruding out from underneath it a bit, but it's so tight, I can't push the tube back under.

I do slightly inflate my tubes before putting them into the tire...just to get a slight roundness. Once in, I release as much air as possible. Is this not the correct procedure???

Should I try smaller tubes???

s1nglespeed

Sounds like an unusually tight fit. I inflate the tubes a little for installation, too, but I fully deflate them again when I go to re-seat the tire. Can you wiggle the tire back and forth a little bit? I wouldn't ride on a tire that has any part of the tube sticking out from underneath. You are right ... you could easily blow the tire off the rim that way.

Retro Grouch 

Rhynolite rims are very strong but they're among the hardest rims to install tires.

The best advice that I can give you is to try a slightly undersized inner tube so that it's less likely to get pinched under the tire bead. The best hope that I can give you is that installing tires onto Rhynolite rims gets easier with practive.

tellyho

Use a little dish soap to help slip the bead over the last bit of rim. I have been fighting this same battle with a much-less-worthy set of old Weinmann MTB rims and slicks. It's frustrating as hell, as I've patched the tube a good 3 times so far.

slowandsteady

I always inflate the tubes somewhat to avoid pinches. I find that they are easier to work with that way.