Shimano Sora FC-3550 9 Speed Compact Chainset - 46/34T - 170mm Arm - Black Handlebar Width_67cm The SRAM Black Box ceramic

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

You don’t have to run a single ring anymore

Nipple Type: Internal

Chainwheel

If you want to achieve your best possible performance

Shimano Sora FC-3550 9 Speed Compact Chainset - 46/34T - 170mm Arm - Black Handlebar Width_67cm The SRAM Black Box ceramicShimano 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