12 tooth freewheel for bike<br />Mainly used to refit your bike<br />Color: copper<br />Material: metal<br />Overall size: about 52 x 52 x 24.3 mm<br />Tooth number: 12 tooth<br />Internal thread: about 17 ± 1mm<br />Aperture: approximately 18 ± 0.02mm<br />Whether it can be rotated reversely: No<br />1 x Gear<br /><img src="http://img6.eachbuyer.com/x9/p100/bv236_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv236_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv236_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv236_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x9/p100/bv236_5.jpg" />