This Strummer external bottom bracket with ISO threading features an internal plastic sleeve to prevent water and dirt from entering. The external bottom bracket cups are precision-machined for a precise fit on your bicycle. Includes four alloy spacers to ensure this bottom bracket is compatible with your bicycle.
Specifications
Compatibility: Road Bike & Mountain Bike
Width: 68 / 73 mm
Bottom Bracket Shell Inner Diameter: 1.37" x 24 TPI
Bearing Inner Diameter: 24 mm (Hollowtech II)
Weight: 105 g
Compatibility with Brompton P Line
The BSA-24 cannot directly replace the stock bottom bracket on a Brompton P Line if the crank still uses a square taper. The BSA-24 is designed for a 24 mm crank spindle. If the crank has already been replaced, check the compatibility of the bottom bracket shell, spindle, chainline, and folding clearance with your nearest dealer.
Polygon Tambora G4
The BSA-24 supports 68/73 mm BSA shells and 24 mm crank spindles. For the Polygon Tambora G4, first check the diameter of the stock crank spindle. If it still uses a square taper, the BSA-24 cannot directly replace it.
