SHIMANO Hollowtech II MTB Bike Crankset Bottom Bracket English Threaded BSA NEW
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SHIMANO SM-BB51 HOLLOWTECH II MOUNTAIN CRANKSET BOTTOM BRACKET

NEW / SHIPS IN 24HRS

SPECIFICATIONS:
  • Manufacturer: Shimano
  • Model: SM-BB51
  • Fits all Shimano Mountain Hollowtech II cranksets, 24mm Spindled cranks where the spindle is part of the drive arm
  • Not for road
  • Threading: 1.37" x 24tpi
  • For either 68mm or 73mm wide English threaded bottom bracket shells
  • Includes bottom bracket and three spacers
  • Spacer use: 
    • Use all three for 68mm shells
    • Use only one for 73mm shells
  • Mass: 94 grams
  • Condition: New, not in retail packaging

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