SM-CRM85 Single Chainring M8100/M8130 12 SpeedDynamic 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: Hollow gear construction for optimized rigidity, lightweight and durability Durable teeth using a

Sil-Tec surface treatment technology (PTFE plating) that is smooth running and increases durability

Constructed from CNC machined aluminium

Machined out ratchets are 10 grams lighter per set compared to the standard ratchets

Genuine ENVE kit

Convenient carry handles for easy transport

Capacity: 160 psi/11Bar

Integrated (IS42) upper headset standard

- Pulley: - Sunken type pulley screw

Backsweep - 7 deg

you should have the performance BB to match

- Solid: 15 lumens for 6 hours

Improved high-speed rebound tunability via addition of VVC (Variable Valve Control)