IRD Bottom Bracket Tenacity QB-40 - JIS

164.99 164.99 USD


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Width: 68mm BB width

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Cup and cone bearings with polished races. Retro yes,  but these balls are bigger than those in sealed cartridge bearings, so they  will work longer and handle more load.

- JIS square taper interface
- CNC machined steel cups
- SS41 steel lockring
- Polished ball races on cups and axle
- 1/4”x 11 ball retainers
- 1.37 x 24tpi (English threading)
- For 68mm wide shells

Made in Japan