Browsing Cranks & Bottom Brackets

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Interloc Racing Design Bottom Brackets
Interloc QB55 JIS Bottom Bracket
Margin Booster
  • High quality sealed cartridge bearings with steel cups
  • Traditional square JIS 2-degree taper crank arm interface
  • 68mm English (BC1.37 x 24tpi - RH/LH)
  • Made in Japan
 
item # model spindle interface shell shell ID width spindle length in stock?
  RD4141 QB55 JIS square BSA 33.6mmx24tpi 68mm 103mm YES
  RD4142 QB55 JIS square BSA 33.6mmx24tpi 68mm 107mm YES
  RD4143 QB55 JIS square BSA 33.6mmx24tpi 68mm 110mm YES
  RD4144 QB55 JIS square BSA 33.6mmx24tpi 68mm 113mm YES
  RD4145 QB55 JIS square BSA 33.6mmx24tpi 68mm 115mm YES
  RD4146 QB55 JIS square BSA 33.6mmx24tpi 68mm 118mm YES
  RD4147 QB55 JIS square BSA 33.6mmx24tpi 68mm 122mm YES
  RD4148 QB55 JIS square BSA 33.6mmx24tpi 68mm 127.5mm YES
Interloc Racing Design Bottom Bracket Parts
Kogel Bearings Crank Parts/Bolts & Caps
Kogel Bearings Bottom Brackets