Shimano STEPS CD-EM800 Chain Retention Device - Frame Mount Without Plate 32T/30T Chainring Model=Alfine FC-S501 Crankset Bearing Dimensions 12x28x7mm Material Steel

Bearing Dimensions 12x28x7mm Material Steel Number MR 17287 Bearing Grade ABEC 3

}SRAM X01 Eagle Trigger Shifter - Single Click Rear 12-Speed Discrete Clamp Lunar

Color Zinc Range 11-34 Cassette Cogs 11-13-15-18-21-24-28-34 Cassette Body Type Shimano/SRAM 8 9 10 Speed Drivetrain Speeds 8 Weight 346 Defined Color Silver

Oversized asymmetrical head is made from Cro-Moly steel for superior strength and durability

Shimano STEPS CD-EM800 Chain Retention Device - Frame Mount Without Plate 32T/30T Chainring Model=Alfine FC-S501 Crankset Bearing Dimensions 12x28x7mm Material SteelShimano 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 trail Clean and compact design Compatible with 53 mm 55 mm & 56. 5 mm chain line