Adjustable Bicycle Stem 31.8mm to 25.4mm, 0-60 Degree Angle, Lightweight Aluminum Alloy Handlebar Stem for Mountain Bike, Road Bike, Fixed Gear, MTB, BMX - Perfect for Commuting, Trail Riding and Urban Cycling

25.4 mm for most of road bike, 31.8 mm for most of mountain bike. Please confirm the Diameter of your Handlebar before order. If the item with stripped screws, unstable (unfirm) or other questions, just contact us to solve. We are more passionate to provide good products and service for every customer. Product Features: 1.Material: 6061 high strength forged aluminum alloy, frosted finishing, fine workmanship. 2.Handlebar diameter: 31.8 mm/25.4 mm, please check your bike handlebar size and choose right model 3.Fork stem diameter: 28.6 mm/ (1-1/8") 4.Angle: 0-60 degree adjustable 5.Max height extension: 110 mm 6.Weight: approx 250 g (25.4 mm model) or 260 g (31.8 mm model) 7.Cycling equipment bike components, suitable for most of Mountain Bike, Road Bike etc. Important Notice: 1.The bike handlebar diameter is either 31.8 mm or 25.4 mm, please check your handlebar size and choose right model 2.25.4 mm model is only fit for handlebar diameter 25.4 mm, and 31.8 mm model is only fit for handlebar diameter 31.8 mm Package including: Adjustable bike stem x 1 4mm Allen key x 1 5mm Allen key x 1 Note: Please allow little color variation for different display setting. Please allow little differences due to manual measurement. Have a nice shopping day.