Adjustable Aluminum Adaptor With Rubber Hooks That Fits Up To, Standard Frames. Product Details Versatile Compatibility: This adapter bar is equipped with a telescopic tube, adapting diverse bike frames, including women's, BMX, and non-standard frames. And our bike adapter bar is designed for use with most mast-style hitch racks. Rapid installation on seat post and handlebar stem using hooks with quick release buttons on both ends of our bike adapter bar ensures a secure fit for various bikes. Distance Between Hooks: 18.90~27.56in (48~70cm). High Loading Capacity: By creating a top tube, our bike adapter bar allows your non-standard frame bike, including heavier e-bike, to securely mount onto a mast-style hitch rack, thanks to its 70 lbs loading capacity. Whether you're heading for a mountain bike trip or tackling challenging trails, our adapter bar allows you to focus on the journey without worrying about safety of your bike with the bike adapter bar. Utmost Security: MOBI OUTDOOR bike adapter bar features a locking nut, allowing you to confidently lock the tube at any desired length. With large 1.50in diameter tube and anti-rotation mechanism for enhanced stability, our bike adapter bar prevents unwanted movement during transport. Our bike rack crossbar adapter ensures a customized and stable fit for various bike frames. Built to Last: Our bicycle cross bar is crafted from robust 0.10in thick 6063 aluminum for exceptional durability, and the corrosion resistance enables our bike adapter bar to withstand all weather conditions, providing consistent performance during demanding heavy-duty use. Additionally, our bike adapter bar provides optimal strength without compromising on weight, making it perfect for cycling adventures. Scratch Protection: Our bike adapter bar features molded rubber hooks that gently cradle your seat post and handlebar stem. This feature of our bike adapter bar protects your bike against scratch, impact, and vibration throughout your entire journey. Additionally, our ebike adapter includes a 2-year warranty, providing you with added peace of mind and assurance for your investment. 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.