Syntace RockGuard is a must have for every Liteville. It not only protects the derailleur from foreign object impacts like rocks and tree stumps, but also provides the derailleur with a true 3-D support for highest precision shifting.

The Shimano Shadow version is compatible with all Shimano Shadow rear derailleurs used on Type1 Syntace X-12 derailleur hangers . For any other type of rear derailleur or Type II X-12 hanger, the Rockguard SL is available.