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DR 21531 LLB - Double-Row
For the complete bottom bracket assembly
The ultimate upgrade pulley
Static load - 138lbf / 0
These Bottom Bracket Bearings feature 440C stainless steel alloy races and balls with 90% fill
BKS-02349 - Angular Contact 440C Stainless Italian Thread Bottom Bracket for Shimano 24mm Cranksets 428420 DR 21531 LLB - Double-RowBKS 02349 Angular Contact stainless steel Italian Thread Bottom Bracket for Shimano 24mm Cranksets You may find the following tools useful for installation and servicing: For bottom bracket installation: BBT 44x16 24 Pro Cup socket tool for 44mm x 16 spline bottom brackets and Shimano 24mm spindle cranksets BBT 010 Bottom Bracket Flat Wrench for 44mm x 16 spline and 52mm x 16 spline BBT 001 B Shimano crank arm fixing bolt tool for use with torque
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