PROTYPE 68 x 109mm ISO Taper (Sugino 75)

The number one question/email we get is..."Does anyone offer a reasonably priced sealed cartridge bottom bracket for the Sugino 75 track crankset, a true 109mm ISO taper bottom bracket?". The answer for a very long time was unfortunately "no".

Well, after searching high and low (for what seems like a millennium)we found a manufacturer!

We have a few local messengers riding the first samples and they have been holding up superbly well. Granted it's no White Industries or Phil Wood with replaceable bearings; but it's also a fraction of the price.

Details:

109mm Spindle

ISO Taper

68mm Shell

Alloy Cups and Sleeve

Sealed Cartridge Bearings