Bike Forums - View Single Post - Would I be foolish to drill Trek rims to fit Schraders?

11-18-23 | 09:28 AM

#30

cyccommute

Mad bike riding scientist

Joined: Nov 2004

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From: Denver, CO

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Quote:

Originally Posted by 777funk

I do have a couple of those adapters and use them when I use the 12V inflator. But I find them to be a bit of an annoyance vs my bikes with Schraders. Especially so when filling a few bikes at a time.

It doesn't help that I just bought a box of 20 Schrader tubes.

These rims are holding 32mm and 25mm tires (Trek 520 and 2120). So maybe that would be too narrow to drill. I would guess it's 1/8" or so bigger diameter.

Wrong adapter. The thread on ones are a royal pain to use. If you are going to use a compressor instead of a manual pump, The SKS adaptor works much better. No need to unscrew the adapter, loosen the presta stem, screw on the adapter, pump up the tire, unscrew the adaptor, tighten the presta stem, and then screw on the adaptor. Just push the adaptor on and pump up the tire.

If you absolutely have to enlarge the hole, I’ll second (third?) the use of a tapered hand reamer. It’s not difficult to use and a lot better than using a handheld power drill.

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Last edited by cyccommute; 11-18-23 at 09:32 AM.

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