The 105 BB-5500 bottom bracket from Shimano is an Octalink bottom bracket with 8-speed gearing and a steel axle. The 109.5 mm versions are compatible with 2-way cranks, the 118.5 mm versions with 3-way cranks. Even though it has been around for a while, this bottom bracket still holds up.


Shimano warrants to the original retail purchaser that the Shimano bicycle division product for which they received this warranty, is free from non-conformities in material and workmanship for a period of two years and their Dura-Ace and XTR components are covered for a period of three years from the date of original retail purchase. Shimano footwear, soft goods and wheels are warranted for a period of one year.

  • Octalink crank arms with eight-speed splines for shorter grooves (Octalink MTB)
  • 8-speed toothing of bottom bracket axle and crank
  • 105 5500 Series
  • Shell Width: 68 mm, 70 mm
  • Axle Length: 109.5 mm, 118.5 mm
  • Axle Type: Octalink (Road)
  • Compatibility: 2-speed
Barcode # 4524667134527
Brand Shimano
Shipping Weight 0.3000kg
Shipping Cubic 0.001000000m3
Unit Of Measure each

Must be installed and serviced by qualified bicycle mechanic

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