Dynamic Chain Engagement DCE is used to hold the chain and help prevent chain jump out. This is achieved by using a broader and taller tooth profile in conjunction with a special hooked leading edge and alternate profiled tooth shaping. This provides superior chain retention lower driving sound increased durability and drag to a minimum. Hollow gear construction for optimized rigidity lightweight and durability Durable teeth using a plated steel construction supported by a carbon composite CFRP carrier body Dyna-Sys11 HG-X11 11-speed chain compatible Available in 30T/32T/34T
Best Price: £59.99 from Cyclestore