GS-D keeps your chain in place. No matter how hard you hit the trails, GS-D will prevent your chain to drop on your BB. By using state-of-the-art technology, we managed to reduce greatly friction, chain offset, noise and rolling resistance.
Material: Aluminum with CNC Machined
For 7-12 speed
Chainring capacity: 22T-38T , ISCG-05 System
Color Available : Black