Mountain Bike Handlebar Stem For Bicycle, Road Bike, Mtb, Bmx, Cycling, Besnin Product Details ?size?31.8x130mm. Handlebar center diameter: 31.8mm?Riser tube diameter: 28.6mm(1-1/8")?Length: 130mm?Weighe:280g?Degree:0-60 adjustable ,please choose the right model for your demands. ?Made of aluminum alloy , lighter weight, better toughness, no deformation, corrosion resistance, provide security for your outdoor travel. ?Great angle and length,this stem really makes the riding position much more comfortable and flexible. ?Easy installation, just connect up the original front fork stem. Four bolt bar clamp holds bar securely in position?fit for the bike lover. ?Suit for MTB ,BMX, DH, downhill bicycles, fixed equipment, road bikes, etc. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.