CeramicSpeed PF4630 Bottom Bracket - Red Coated Size:Standard Racing helmet

Racing helmet

Spider / chainring mount: Shimano Direct Mount

For optimal performance

these wheels help riders maintain a steady aerodynamic posture and full control of their bike in varying conditions

The cage architecture creates space for large ventilation openings and serves to stabilise the helmet

CeramicSpeed PF4630 Bottom Bracket - Red Coated Size:Standard Racing helmetSpecification Fits 30mm thru axle cranks with 46mm inner diameter shells; extended cups and telescoping spacer tube enhance stiffness and sealing. CeramicSpeed Bearings with hardened steel races offer excellent stiffness and durability for long lasting performance. Standard bearings deliver just 0. 30. 4 watts of draga 75% reduction compared to conventional bottom brackets. Bearings last at least 3 times longer than standard options, thanks to premium