SORA components deliver the performance of Shimano® premier lines, without the financial heft.
- Crank arms are painted aluminum, top gear is anodized aluminum
- Middle and low gears are plated steel
- Chain ring bolt is SUS
- Chain ring nut is plated steel
- Recommended for use with Shimano Super Narrow HG 9-speed chains (CN-HG53) and Shimano bottom bracket SM-BB4600 or SM-BB71-41B
- Chain ring combination 50-39-30T
- Chain line is 45mm
- 170 or 175mm crank arms
