Shimano Bottom Bracket 68Mm Bottom Bracket Sq\. Taper, Bicycle Middle Mountain Features: LONG TERM USE: The Square Hole Crank Axis is made with good materials, which is solid and durable with a long service time. GREAT WORKMANSHIP: With good performance, bearing structure, the degree of lubrication is quite good, and the steel shell can absorb roundness tolerance for installing ports of Bracket Bottom. NICE SYSTEM: Integrated System can protect the frame to provide more power output, Square Hole Crank Axis makes the Bottom Bracket working more effective. DESIGNED FOR: Professional suitable for 68mm frame shell, a good accessory for your bikes. Specification: Suitable: for 68mm Frame Shell Weight: about 316g/11.15oz Size: about 68 * 118/120/122.5/124.5/127.5mm Cups thread size and pitch: 34.798mm 1.37*24TPI Structure: 2 Bearings Package List: 1 * Quare Hole Axis 2 * Screws Note: Please use the BB tool to install and replace the bottom bracket for safety. Product Features GREAT WORKMANSHIP: With good performance, bearing structure, the degree of lubrication is quite good, and the steel shell can absorb roundness tolerance for installing ports of Bracket Bottom. NICE SYSTEM: Integrated System can protect the frame to provide more power output, which makes the Bottom Bracket working more effective. LONG TERM USE: The Square Hole Crank Axis is made with good materials, which is solid and durable with a long service time. DESIGNED FOR: Professional suitable for 68mm frame shell, Square Hole Crank Axis is a good accessory for your bikes. GUARANTEE: If you are not satisfied with our product received, you can apply for unconditional return and refund within 180 days. In terms of any problem of this product, you can send emails as soon. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!