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Quieter drivetrain and reduced drag Ring Position/Type Chain Retaining Single Ring Tooth Count 38 Drivetrain Speeds 12 Round or Oval Round Chainring BCD 104 Material Aluminum Color Black Defined Color Black Size 38T
x-firm (200lb+)
39 Cable Style Coiled
This initial damping support without any high-speed harshness paired with a 22% increased volume in the Compression Bladder System results in increased small bump sensitivity and damping consistency
Shimano FH-M618-B Hub Axle MFPN=EFCRX6101CXB0 Quieter drivetrain and reduced dragShimano Hub Axle Unit
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