The largest cog is 7075 Aluminium to keep weight down while the remaining cogs are constructed from durable steel

the new RD-M820 features a durable super wide link that serves as the backbone of the DH parallelogram

and dusty conditions

What valves does it work on: TwinHead is compatible with Presta and Schrader valves

20g weight (8g more than stock)

Race Face Grippler Lock On Grips - Red With Black Clamps - 30mm Exclusive The largest cog is 7075Grippler gives you the moisture shedding, long gripping sensation you crave, with the hard wearing resilience you expect from Race Face. Our proprietary compound and diamond buff finish feels great with both gloves and bare hands and with ramped grip profile on finger side plus varied grip depth on palm side, Grippler will bring you to a higher level of digitization. Available now in 10 colours, and two sizes, the Grippler surpasses industry standards