Shimano SM-CRM70 Chainring - Black

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.

Features:

• Durable teeth using a plated steel construction supported by a composite carrier body
• Dyna-sys11 hg-x11 11-speed chain compatible
• Available in 30t/32t/34t
• Uses specific 96BCD bolt pattern. Only compatible with specific Shimano chainsets.