Fits original model Guide RSC

Guide RE - Pistons

a mystical tool is required to unlock the 'toolless' links on 10-12 speed chains

BOA closure system

If you race or dislike carrying lots of stuff on your ride

Ergon GE1 EVO Lock On Grips - Black - 2020 Images Uploaded - Ready for Review Fits original model Guide RSCAs the name implies, the Ergon GE1 EVO Grips are the evolution of the original GE1 grip. The EVO takes things even further by increasing the grip available and reducing the amount of strength required to hold onto the bars, reducing the risks of arm pump or numbness in the hands. Ergon has achieved this by adjusting the texture of the grip against the direction of hand rotation so your hands will almost feel like they are screwing onto the grip. The