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julio 26, 2026

Interloc Racing Design QB55 cartridge BB, JIS – 68x115mm

- 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.