Bike Forums - View Single Post - Should I drill and tap my stem for a bell?

09-05-21, 08:40 AM

#20

scarlson

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Bikes: Ron Cooper touring, 1959 Jack Taylor 650b ladyback touring tandem, Vitus 979, Joe Bell painted Claud Butler Dalesman, Colin Laing curved tube tandem, heavily-Dilberted 1982 Trek 6xx, René Herse tandem

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I've drilled and tapped 5 stems for bells: Cinelli 1A, two Technomics, a Technomic Deluxe, and an SR Custom. That's all my bikes. I don't think it's a problem. A lot of them are also drilled for the brake cable as well.
@ThermionicScott That one you posted in your original post looks like an SR Custom. Those are forged, and especially beefy based on my experience. And like I said, I drilled one, both for a cable stop and a bell.

The original René Herse stem on my tandem is aluminum with a drilled and tapped hole for a bell also.

I talked to a couple machinists and none of them thought it would fail. I did this last year. Here are a few.

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Last edited by scarlson; 09-05-21 at 08:45 AM.

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