650b conversions, some new bikes, all nonsense

You are reading a single comment by @Ph1ll1p and its replies. Click here to read the full conversation.

•

midlife

BITD people did a "cut and shut". Cut the bottom bracket, closed it up and cut new threads. Sort of made redundant when threadless BB arrived.

•

Ph1ll1p in reply to @midlife

I see the logic in this but is horrifying to me. It would shorten the wheelbase no?

•

midlife in reply to @Ph1ll1p

No change to wheelbase. A thick slot is cut on the underside of the BB shell and the shell forced closed. This reduces the diameter of the BB shell.

The shell is brazed / welded back together and new threads cut.

Very crude but I am going back 50 years lol

About

Avatar for Ph1ll1p @Ph1ll1p started