Race Face Ride 31. 8 Stem The Race Face Ride stem is made of 6061 forged and shot peened aluminum for strength and durability. The 4 bolt clamp securely holds your bar in place. The machined logo on the bar clamp add a little high end detail to this value oriented stem. Features Claimed weight: 175g (110mm with 25. 4mm bar)Suggested Use: XC/Trail31. 8mm Rise: +or-6 degrees Stack Height: 40mm | Race Face | Ride 31. 8 Stem | Black | 90Mm Length | Aluminum