Shimano STEPS CD-EM800 Chain Retention Device - Drive Unit Mount With Plate, 38T/36T/34T Chainring, 55mm Chainline

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