If you have a manual mill, why not do the holes on that?
Quote:
Originally Posted by JesseK
Thanks for the heads up about the sprockets Austin. They're 16T since their PD creates to a nice round circumference, and I was wondering if 22T is preferred over 16T. Nice round circumferences make nice round distances between axles, so the chains will not need tensioners. If we need to take out slack, we'll use half-links. We ran tensionerless after DC this year (1 regional, 1 champs, 1 offseason event) without a single issue. On the same note, are the AM 7075 Aluminum sprockets strong enough for the drive train? What's in the CAD is steel, with the full hub. They're a nice round 1/2" wide in total, which simplifies the spacers as well; yet if the AM's have strong enough teeth, then I see no reason to stick with the steel.
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Actually, if you have the same toothcount on both sprockets, it doesn't matter what their circumference is the exact center to center is still a clean number.
There is also a helpful excel called Dr. Joes chain path calculator for all other situations.
We've run AM 22T for seasons without any issue.