Features:<br> 1.Type: Hub Shaft Conversion Sleeve Specifications: 15 to 12MM<br> 2.Material: Aluminum Alloy.Packae includes: 1 pair Hub shaft conversion sleeve,<br> 3.15 to 12MM is used for ordinary Liuding or middle lock on the original 100 * 15MM/110*15MM front hub or converted to the front 100 * 12MM/110*12MM mini barrel axle.<br> 4.The conversion of the hubs avoids the need to replace the hubs due to the upgrade of the front forks, which greatly saves the money of bicycle enthusiasts.<br> 5.If you have any questions, you can contact us.We wil try our best to help you.<br> <br> Notice:<br> Please allow 1-3cm deviation due to manual measurement<br> Actual color may be slightly different from the image due to different monitor and light effect<br> Material:Aluminum Alloy<br> Single Product Size:2.1x2.1x2.1cm<br> Package List:<br> 1 pair x Bike Hub Shaft Conversion Sleeve