Welcome to our store！</br> 1、The bicycle bottom axle is made of high‑quality metal materials, which is solid and durable with a long service time. 2、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. 3、Professionally suitable for 68mm/2.7in frame shell, it is a good accessory for your bikes. 4、Integrated system can protect the frame to provide more power output, which makes the bottom bracket working more effective.​ 5、Adopt excellent manufacturing process with fine grinding, it has exquisite appearance and high reliability. <p class="wang-edit-text"><p class="wang-edit-text"> <p class="wang-edit-text"> <p class="wang-edit-text"> <p class="wang-edit-text"> Item Type: Bottom&nbsp;Bracket Material: Metal Product Size: Approx. 20x16x6cm/7.9x6.3x2.4in Weight: Approx. 605g/21.3oz <style> .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }</style> 2 x Bottom&nbsp;Bracket Satisfaction - Our customers are our top priority. If you find any product problems after receiving the goods, such as damage and incorrect quantity of goods, please contact the seller immediately. We try our best to provide you with satisfactoryaftersalesservice</br>