Sunrace RS0 39T chainring Neon 8155 This moto-style 4 piston disc

This moto-style 4 piston disc brake includes the switches necessary to activate brake lights and drive cut-out on compatible e-bikes

18 deg engagement with reinforced high-torque pawls

Convenient carry bag

WTB's proprietary 4D spoke drilling prevents binding and lateral loading of the spokes while the spoke bed itself has been updated to provide a more compatible interface between the spoke and rim

Model M-1 Color Burnt Orange Size M Size (cm) 57-58 Shell Full Face Visor Yes

Sunrace RS0 39T chainring Neon 8155 This moto-style 4 piston disc7075 alloy replacement rings. 10 speed compatible TECH SPECS Mount Compatibility 130mm 5 bolt Teeth 39T Type Material Spec Color Black Silver Chain Compatiblity 10sp Tooth Type Standard Weight Offset