Interloc Racing Design QB55 JIS Bottom Bracket (Silver) (BSA) (68mm) (113mm)
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Interloc Racing Design QB55 JIS Bottom Bracket (Silver) (BSA) (68mm) (113mm), Interloc QB55 JIS Bottom Bracket. Features: 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 Specs: Interface:JIS Shell:English Shell Width:68mm Length:113mm