Shimano Ultegra SL Compact Crankset

Shimano Ultegra SL 10 speed compact crankset offers a tigher range of gearing. Now when you shift down or up there isn't a large jump in your gear ratio, rather you'll be fine-tuning your effort. Shimano Ultegra SL components are built to deliver countless trouble-free miles with a construction based on Shimano Ultegra 10 crankset. Shimano's Hollowtech II crankset with an integrated bottom bracket allows for superior power transfer. Specifications: FC-6650 crank requires BB-6601 bottom bracket (not included) Hollowtech II right arm includes 24mm O.D. BB spindle 34x50 double chaingrings. Bolt pattern: 5-bolt 10-speed compatible. Arm length availble in 165, 170, 172.5, 175mm 722 g (170mm). Q: Why should I consider a compact crankset? A: While switching to a compact crank does save you some weight over the standard Ultegra SL crankset that isn't the main reason to go compact. The main reason is easily realized looking at gear ratios. This is the ratio of the number of teeth in your big ring divided by the number in the cassette. With a compact crank you are changing this ratio. The lower the ratio the easier it is to turn the cranks. So with a compact crank and the same cassette it will be easier to turn the cranks at each gear! Plus the difference between gears will be smaller! Shipping Weight: 4 lbs. Discounted at ONLY: US$ 334.95