With the same engineered technology as the Shimano Dura-Ace crank, the Shimano Ultegra FC-6700 road crankset uses a hollow outer chainring to save weight and boost rigidity for optimal power transfer and positive shifting under load.

Features:

• Hollowtech II design uses a wider bearing placement to maximize stiffness while keeping weight to a minimum - what you get is a dramatically stronger pedaling force with better power transfer, acceleration and speed
• HollowGlide hollow outer chainring reduces weight, increases strength and enhances stiffness of the entire crankset by 20% for even more shifting power
• Wider gear range accommodates most cycling situations and offers less chain touch in the small/small combination
• Individually machined chainring teeth improve chain contact for greater shifting performance
• Improved bottom bracket seals reduce contamination and friction

Specifications:

• Bottom bracket not included
• BB Compatibility:  Hollowtech 2
• BCD:  130mm
• Shimano Ultegra FC-6700 Crankset is designed to work in conjunction with the Shimano Dura-Ace CN-7900 10-speed Chain or the Shimano Ultegra CN-6700 10-speed Chain
• Ring Size: 53/39T
• Speed: 10
• Double ring model only
• Arm Length: 172.5mm
• Weight: 785g
• Material:  Aluminium
• Made in Japan