BBxunsless Downhill Bicycle Stem Plus or Minus 10 Degrees Off-Road Downhill Faucet 28.6 * 31.8MM Handlebar Stems for Mountain Bike/Road Bike (Sliver)

7075 Aluminum Alloy, T6 Heat Treatment,high And Strong Strength., Pruduce By Cnc Technology To Create Beautiful And Reliable Product., ULTRA-LIGHTWEIGHT HOLLOW DESIGN-Lightweight and high-strength,large area CNC hollowed out in the center reduces weight without losing strength., Name: Mountain Bike CNC Stem,Weight: about 141g,Angle: ±10°, Material: 7075 aluminum alloy,Specifications: 28.6*31.8mm