Special rings designed for E-Bike. Developed for E-Bikes with 104mm 4-Arm mounting. Material : 7075 T6 aluminiumPCD: 104mm 4 ArmSizes: 38t, 40t, 42tColour: BlackCompatible with: Bosch 3rd Generation Shimano E-STEP 7000 Shimano E-STEP 8000 Brose Yamaha
