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

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 trailClean and compact designCompatible with 53 mm 55 mm & 56.5 mm chain line