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huff'npuff
August 28th, 2005, 04:08 PM
Okay, this's probably a dumb question,but.........what problems would I run into if I upsize from a 2.1 to a 2. 3 / 2/5 tire ?
Or wouldn't there be any ? You know - clearance,etc .
slapheadmofo
August 28th, 2005, 04:23 PM
As for problems, yeah, clearance is something to look out for, mainly in the rear. If you use rim brakes, you might need to make some minor adjustments to them, but usually not. Some people will say that the bigger tires' weight is a 'problem', but there's a trade-off for more comfort, traction and durability.
Ben-O
August 28th, 2005, 07:13 PM
Aside from not fitting on the bike ;D, the chain could occasionally bang against the side of larger tires.
Jisch
August 28th, 2005, 10:07 PM
Check out this site for all your tire questions. In cases where you aren't sure a tire will fit, it has actual measurements of inflated tires, since the numbers printed on the sides are often not correct.

http://www.mtbtires.com/

John
Slider
August 29th, 2005, 09:34 AM
Beyond simply squeezing past the chainstays, make sure there's at least another 3/8" on each side to allow for tire squirm. If not, especially on an aluminum bike, you'll eat through the frame pretty quickly, especially in mud season.

Slider
huff'npuff
August 29th, 2005, 03:12 PM
Thanks guys.
Ben-O
August 29th, 2005, 03:22 PM
Beyond simply squeezing past the chainstays, make sure there's at least another 3/8" on each side to allow for tire squirm. If not, especially on an aluminum bike, you'll eat through the frame pretty quickly, especially in mud season.

Slider


Slider, do you mean squirm room so that debris that the tire kicks up won't eat through the frame?
Slider
August 29th, 2005, 03:41 PM
Even if there's no debris, but the tire rubs under load, hi-G turns for example, it will screw up the frame. If you see the paint start to come off, the metal is not far behind, and it doen't take much before aluminum will crack.

I learned the hard way, but luckily it was on my ti frame. It needs a couple of weld patches where the chainstays are grooved from a 1" rim and a 2.24 tire, but I can ride it until I get the time to send the frame out. I wouldn't even try that on an aluminum frame, which can fail very suddenly, unlike ti.

Slider