Shimano ZEE FC-M640 Crankset - 170mm 10-Speed 36t 104 BCD Hollowtech II Spindle Interface Includes Bottom Bracket BLK CheckoutTitle=SRAM 38t Bosch Direct Mount 11/12-Speed X-Sync2 Eagle Chainring The Profile Desgin DRV/AEROa is

The Profile Desgin DRV/AEROa is a high-performance aluminum aero drop bar featuring a truncated airfoil for aerodynamics comfort and stiffness

Chainline/Hub Compatibility 135/142 MTB Hubs Chainline/Hub Compatibility 170/177 Hubs Defined Color Black Direct Mount Type Direct Mount SRAM Material Aluminum Offset 6 Ring Position/Type Chain Retaining Single Ring Round or Oval Oval Tooth Count 30

Sturdy PE inner stiffener increases stability of the bag

} Compatible with 7-12 speed cassettes

} Replaces the existing chainring and spider on 3-bolt BB30 cranks or SuperBoost chainline

Shimano ZEE FC-M640 Crankset - 170mm 10-Speed 36t 104 BCD Hollowtech II Spindle Interface Includes Bottom Bracket BLK CheckoutTitle=SRAM 38t Bosch Direct Mount 11/12-Speed X-Sync2 Eagle Chainring The Profile Desgin DRV/AEROa isShimano ZEE FC M640 Crankset 170mm 10 Speed 36t 104 BCD Hollowtech II Spindle Interface Includes Bottom Bracket Black. Shimano 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 TECH SPECS BB Included Yes BB Shell Width (mm) 68 BB Shell Width (mm) 73 BB Frame Interface English