Race face turbine stemcomes with a race face 5 year warrantythe turbine stem is highly engineered to maximize stiffness minimize weight and guarantee youre cockpit wont get overlooked featuring aerospace 7075 aluminum alloy this stem is ideal for high level cross country racers but is strong enough for all mountain epics machined to precision with 7075 aluminum for high strength fatigue resistance at a very light weight interlocking 4 bolt bar clamp secures your bar and distributes load