Got a new carbon bike (specialized tarmac comp 2012) which had 25mm fitted (pumped measured 24.5), changed with the gp5000 28 that I already had. Seems they measured the same 24.5 on the rim.
Rim is mavic ksyriun equipe S, 622x15c with tire support up to 32mm on their spec sheet.
Is this enough tire clearance?
3mm Allen key for reference.
by RobinCln
8 Comments
I’d run it
Just give it a test ride around the block and then inspect the frame.
Close but seems do-able.
However, also regularly check the inside of your chain stay and see if you don’t get tyremarks on it. I once pushed it a little to far and the tyre started scraping off some of the paint on the inside of the chain stay due to its flex. I was riding gravel. So that was a little too much, although the tyre seemed ok with seat tube clearance
Tyre rubbing on a road bike will come almost entirely from side-to-side flex of the wheel. I’d only be concerned about your setup on a gravel or mountain bike (where I’d expect debris to regularly accumulate around the perimeter of the tyre)
No. Something will get caught, and / or, the wheels flex.
OK for Sunday best riding – nice weather, good roads.
Bad weather or bad roads, more debris etc, I’d give it a miss. You can do a lot of frame damage quite quickly in these conditions on a tight clearance.
That’s a nope. Lateral flexion will cause frame contact.
I use 4mm clearance minimum in town were you can get all kinds of crap picked up. Maybe if you have pristine roads you might be OK, somewhere like a retirement community where they sweep often.