Bicycle Saddles Product Description Brand: RXL SLMaterial: Carbon FiberType: Road Handlebar/Bent BarsWeight: approx 230g(420mm)Handlebar Width: 400/420/440mmClamp: 31.8 mmColor: Red/blackDrop: 119mmReach: 77mmTips:1,Install carbon handlebar correctly, please follow the specified tightening 4 Nm torque (It is recommended to use manual tools for installation).2,Carbon Fiber compares to Aluminum Alloy:Lighter in weight.Much more beautiful in appearance. Brighter in Color. Stronger in preure resistance. Anti-Shock. Has proper elasticity, improving your bicycles cla in minutes.3,Bicycle handlebar 4 Holes Internal routing to protect brake lines and reduce daily wear, reduce the occurrence of accidents, andprovide you with safer travel;Ergonomic design handlebar for the competition that installation and removal steps easy.Precautions:1. Our handlebar diameter is 31.8mm, please use the 31.8 caliber stem.2. Do not use 31.8 aluminum alloy stem with our handlebar, the wrong stem will cause the handlebar to rupture.3. Highway bike handlebar Do not enter the mountain road, the wrong cycling will crash the road handlebar.4. Please correct use our company's acceories, if any questions please contact us directly.5. We will adopt the views of the majority of cycling enthusiasts to improve our services.