Shimano Sora FC-3550 9 Speed Compact Chainset - 46/34T - 170mm Arm - Black Handlebar Width_67cm If you want to achieve

If you want to achieve your best possible performance

Chainwheel

Replacement Hollowgram Si crank arm

The SRAM Black Box ceramic derailleur pulleys work with the 2008 SRAM X

that helps regulate and reduce air bubbles

Shimano Sora FC-3550 9 Speed Compact Chainset - 46/34T - 170mm Arm - Black Handlebar Width_67cm If you want to achieveShimano Sora FC 3550 9 Speed Compact Chainset As Shimanos first class 9 speed road bike groupset, SORA is pitched towards sports fitness cyclists. The compact 50 34T crankset can now be combined with a large range 11 34T cassettes, an accommodating rear derailleur, and a long arm front derailleur. Spinning up hills suddenly got easier with two extra teeth over the previous SORA, while the small 11T sprocket makes sure you have enough high end range to