The NOS Salsa Moto AceSUL Threadless Stem is a high-quality aluminum stem designed for mtn  bikes. With a stem length of 120mm and a steerer tube diameter of 1 1/8 inches, 25.5 bar clamp and has a 10.5 degree rise. This product is perfect for cyclists looking to upgrade or replace their current stem with a durable and reliable option from a reputable brand like Salsa.