Guidering M - Boost

e*thirteen Europe GmbH Verified independent store

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Step-up to better chain retention with the Modified Guidering! Optimized tooth profiles and chamfers provide greater chain retention than standard rings. Coupled with a clutch-styl e 10 or 11 speed rear derailleur and proper drivetrain protection, you’ll be ready for anything the trail throws at you. For use with e*thirteen cranks only. Show more