brand new geniune shimano 32 tooth single ring shimano direct mount 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 Stainless steel construction supported alloy carrier body on 32T HG 12-speed chain compatible
