10
votes
Accepted
I can't fix my tire
It looks like you have the bead outside the rim.
Here's a schematic from Wikimedia, of an installed tire. It looks like you have left the part labeled 4 on the outside.
How you can fix this is, put a ...
- 1,023
10
votes
Why are mountain bike tires rated for so much lower pressure than road bikes?
Of course it would be possible to build mountain bike tyres that could take the same sort of pressure as road bike tyres. But they'd be very heavy, expensive (with all the extra material in them) and ...
- 52.9k
8
votes
Why are mountain bike tires rated for so much lower pressure than road bikes?
There are three aspects to it:
Rated max pressure doesn't necessarily have much to do with how much pressure the tyre can really withstand safely. All ratings on products are at least a bit below ...
- 2,890
5
votes
Why are mountain bike tires rated for so much lower pressure than road bikes?
Here are some rough numbers to illustrate the forces involved with larger tires at higher pressures, using imperial measurements (inches, PSI, etc).
Just so you can get an idea of the magnitude of the ...
- 9,764
5
votes
Accepted
What's the correct tire size for Cannondale SM 400?
26" is more of a marketing number than an engineering one. It doesn't always mean the same thing.
In particular, Sheldon Brown's law of tyre sizing applies here:
If two tires are marked with ...
- 52.9k
5
votes
Omafiets bike tyre / 42-635 vs 40-635
The 635 in the size is the rim diameter. So, both tires fit the same rim, and 40 may or may not be slightly narrower because the width measurement is never exact.
- 21.2k
5
votes
Roadside Repair of torn sidewall
I have had to deal with this (Strava - you need to either be logged out or be following me). There's a photo of the damage but not the repair. I was 40km from home, and luckily with someone who ...
- 52.9k
4
votes
Roadside Repair of torn sidewall
Not so much roadside, but trail side. When I tore my side wall, Luckly I'd not long seen some hack repair on YT, GMBN I think it was. Got hooked up on some trail debris I'm guessing. I stuffed a ...
- 515
3
votes
Why are mountain bike tires rated for so much lower pressure than road bikes?
Another consideration is the rim that these tires are mounted on. With modern double-wall rims, the outer wall needs to withstand the tire pressure. Considering that most MTBs are using less than ...
- 14.2k
3
votes
Roadside Repair of torn sidewall
I've had great success with a dollar bill for smaller holes. You can just fold it up and place it under the hole, making sure that it stays in place while you inflate the tire. This tip is courtesy of ...
- 336
3
votes
Roadside Repair of torn sidewall
I've done this quite successfully with a piece cut from the lid of a (disposable) plastic food box, held in place with electrical tape. It took a few attempts to shape the patch properly, but it ...
- 253
2
votes
Why are mountain bike tires rated for so much lower pressure than road bikes?
You don’t want to ride a MTB tyre at road bike tyre pressures. The recommended or maximum pressure on most tyres is usually much higher than you’d ever want to ride for optimum comfort and rolling ...
- 25.2k
2
votes
Rear tire burping on gravel bike (tubeless)
I have a potential answer as the tire is currently holding air and has survived faster speeds and more bumps for quite a few rides since my episode of multiple tire burps.
My pressure was too low on ...
- 866
1
vote
Why are mountain bike tires rated for so much lower pressure than road bikes?
Adding to the answer from L.Dutch.
Wider/high volume tires will generally provide a firmer road/trail feel at lower pressures. 40 PSI in a MTB tire will feel show minimal deflection, while 40 PSI in a ...
- 11
1
vote
Why are mountain bike tires rated for so much lower pressure than road bikes?
I'd be riding the mountain bike in the city on flat roads, just like a road bike.
you are using the bike where it is not purposefully designed to go. That aside, a lower tire pressure:
allows the ...
- 6,961
1
vote
26' Maxxis Ikon 2.35 Bike slipped while pedalling
For a Maxxis Ikon, 23psi is completely reasonable, in fact at that pressure they are probably offering near optimum grip.
While these are off road tires, they are pretty low profile and on pavement, ...
- 515
1
vote
Roadside Repair of torn sidewall
I use band-aids to repair tire cuts from sharp stones because they are non-elastic unlike duct tape. Cuts up to several mm have always been reliably repaired for months in wet conditions. I imagine ...
- 13.5k
1
vote
New inner tube bulges near the valve when inflated
The problem is that the valve base in the tire is preventing the tire from seating, the fix is very easy.
Just deflate the tire, unscrew the valve then push the valve into the rim/tire.
The tire might ...
Only top scored, non community-wiki answers of a minimum length are eligible