Shimano ES300 73 x 113mm Octalink V2 Spline English Bottom Bracket ZM2 removable power sensor allows for

removable power sensor allows for use with included road and off-road pedal bodies Dual sensing for cycling dynamics data

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Rings 42Number of Chainrings Chain Retaining SingleDrivetrain Speeds 13Chainring BCD 123Color BlackCrank Length (mm) 172

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Shimano ES300 73 x 113mm Octalink V2 Spline English Bottom Bracket ZM2 removable power sensor allows forShimano ES300 73 x 113mm Octalink V2 Spline English Bottom Bracket. Shimano BB ES300 Octalink V2 Bottom BracketsFits Shimano Octalink V2 Spline Cranksets Crankarm fixing bolts not included TECH SPECS Bottom Bracket Shell I. D. 1. 37 BB Frame Interface English BB Shell Width (mm) 73 Weight 270 Spindle Interface Type Shimano Octalink V2 Spindle Length 113 Defined Color Gray