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Shimano STEPS CD-EM800 Chain Retention Device - Frame Mount Without Plate, 32T/30T Chainring

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Enjoy an added sense of security on the trails with the Shimano STEPS CD-EM800 chain device for e-MTB.
Helps ensure chain stability and avoid chain drop through rough sections of trail

Clean and compact design

Compatible with 53 mm, 55 mm & 56.5 mm chain line