Thivnik 31.8 Bike Stem 7/35 Degree, 60Mm/70Mm/80Mm/90Mm/100Mm/110Mm Bicycle Mtb Product Details ?Compatible With?Thinvik Bike stem is suitable for 31.8mm (1-1/4") and fork steerer tube diameter is 28.6mm (1-1/8") ?Light Durable?·Constructed of high-strength and 6061 T6 aluminum alloy.Hollow design-Weight:120g(70mm) ?Easy Installation?The bicycle stem is easy to install, just connect up the original front fork stem. Four bolt bar clamp holds bar securely in position. ?Specification?Handlebar diameter 31.8mm (1.25"), front fork stem diameter 28.6mm (1-1/8"), Length: 60mm,70mm,80mm,90mm for choose (center distance of the two holes) ?Important Note?Please confirm your bike handlebar diameter is 31.8mm (1-1/4") and fork steerer tube diameter is 28.6mm (1-1/8") before order!!! Otherwise, the item is not suitable for your bike! 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.