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Shimano DURA-ACE BB-R9100 BSA Bottom Bracket

Shimano Bottom Brackets

Shimano DURA-ACE BB-R9100 BSA Bottom Bracket

Josh Matthew March 23, 2026

MPN: IBBR9100B

$52.00

DURA-ACE bottom bracket for English (BSA) threaded 68 mm shells Shimano road cranks

Only 1 left in stock – Ships today! (Monday)

This item may only be shipped within the United States.
We are required to follow our brand's policies on shipping and we cannot ship this product outside the United States.
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Shimano DURA-ACE BB-R9100 BSA Bottom Bracket

The Shimano DURA-ACE BB-R9100 BSA Bottom Bracket is made for threaded 68 mm road shells and works with Shimano road cranksets. The Shimano 9100 Bottom Bracket features advanced seal construction for smoother rotation and small ball bearings to minimize weight.

 

Shimano Bottom Bracket Comparison

ModelPriceBikeShellCranksetsWeight
Shimano Ultegra SM-BBR60 BSA Bottom Bracket$31.99RoadFits English (BSA) threaded 68 mm road shellsFits Shimano road 24 mm cranks77 grams
Shimano DURA-ACE BB92-41B PressFit BB86 Bottom Bracket$36.99Road and MTBFits PressFit BB86 mm road and PressFit BB92 MTB shellsFits Shimano 24 mm cranks54 grams
Shimano Ultegra BB72-41B PressFit BB86 Bottom Bracket$38.99Road and MTBFits PressFit BB86 mm road and PressFit BB92 MTB shellsFits Shimano 24 mm cranks69 grams
Shimano DURA-ACE BB-R9100 BSA Bottom Bracket$41.99RoadFits English (BSA) threaded 68 mm road shellsFits Shimano road 24 mm cranks65 grams

Compatibility

  • Shell: Compatible with English (BSA) threaded 68 mm road shells
  • Crankset: Fits Shimano road 24 mm cranks

Specs

  • Shell Width: 68 mm
  • Type: English (BSA) Threaded
  • Axle Size: 24 mm
  • Weight: 65 grams
  • Cup Material: Aluminum
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