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 minimumDurable teeth using a plated steel construction supported by a composite carrier bodyDyna-Sys11 HG-X11 11-speed chain compatibleAvailable in 30T/32T/34T
