Shimano ZEE FC-M640 Crankset - 175mm 10-Speed 36t 104 BCD Hollowtech II Spindle Interface Includes Bottom Bracket BLK CheckoutTitle=Shimano Dura-Ace 15t 1/8 Track Cog 2mm x 10 5mm x

2mm x 10 5mm x 10 5

housing and structural parts of the locking mechanism are made of specially hardened steel

AxCad -- no cadence magnet required for reliabilty and a cleaner look

mile after mile

Shimano ZEE FC-M640 Crankset - 175mm 10-Speed 36t 104 BCD Hollowtech II Spindle Interface Includes Bottom Bracket BLK CheckoutTitle=Shimano Dura-Ace 15t 1/8 Track Cog 2mm x 10 5mm xShimano ZEE FC M645 M640 Crank Bottom Brackets SetsThick wall aluminum construction Reinforced steel axle with 30% greater stiffness compared to Trail designated crank options Steel pedal inserts Includes SM BB52 68 73 bottom bracket Color Black Rings 36 BB Frame Interface English Number of Chainrings Single BB Shell Width (mm) 73 Crank Length (mm) 175 Crank Intended Use Mountain Drivetrain Speeds 10 Weight 906 Pedal Spindle 9 16" BB Included Yes