Shimano STEPS SM-CRE70-B Chainring without Chainguide 53mm Boost Chainline 34t. The Shimano STEPS SM-CRE61/70/80 chainring is designed for use with Shimano STEPS drive units.Designed with Shimanos Dynamic Chain Engagement+ to provide more chain retention a
Shimano STEPS SM-CRE70-B Chainring without Chainguide 53mm Boost Chainline 34t. The Shimano STEPS SM-CRE61/70/80 chainring is designed for use with Shimano STEPS drive units.
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