Race Face BOSCH G4 e-MTB DM Steel 12sp Ring

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- Shimano 12 speed specific, 52mm chainline for 148mm rear spacing - Steel direct mount ring to fit Race Face Cinch system splined cranks - Narrow-wide teeth prevent chain drop, up dated tooth profile runs quieter - Installs with a common Park Tool BBT-22 - Choose 52mm or 55mm chainline (148mm or 157mm, respectively) Show more