Main Features:<br />Spoke holes: 20 holes<br /><br />Front hub:<br />Axle length: 5cm<br />Weight: 124g<br />Total length: 8.5cm<br /><br />Rear hub: <br />Axle length: 7cm<br />Weight: 368g<br />Total length: 13.5cm<br /><br />Quick-release lever: <br />Weight: 55g<br />Length: 12.5cm<br />Suit for folding bike<br /><br /><br />    Specifications<br />General<br />  Color: Black                                                 <br />Basic Information<br />  Package weight  : 0.610 kg                                                  <br />                        Package size (L x W x H)  : 15 x 10.5 x 7 cm / 5.90 x 4.13 x 2.75 inches                                                 <br />Package Contents<br />  Package contents: 1 x Front Hub， 1 x Rear Hub， 1 x Quick-release Lever                                                 <br /><br /><br /><br />                                                <br />