Interloc QB55 JIS Bottom Bracket.
- High quality sealed cartridge bearings with steel cups
- Traditional square JIS 2-degree taper crank-arm interface
- 68/73mm English (BC1.37 x 24tpi - RH/LH)
- IRD conversion cups for 73mm, Italian, French and Swiss frame threading sold separately, use RD-419*
- Made in Japan
This product was added to our catalog on April 25, 2018