The main application of the product: product material is completed by aluminum alloy 6061 turning process↔? making it a better intensity. Installed in the middle of the handlebar and front fork↔? so as to adjust the handlebar height↔? especially suitable for long-distance riders.<br />Color: silver tone<br />Material: metal<br />Length: approximately 121mm<br />Down tube inner diameter: about 28.4mm<br />Upper tube external diameter: about 28.4mm<br />1 set x Bicycle bike stem riser<br /><img src="http://img6.eachbuyer.com/x21/p86/bt087_1.jpg" />                                                        <img src="http://img6.eachbuyer.com/x21/p86/bt087_2.jpg" />                                                        <img src="http://img6.eachbuyer.com/x21/p86/bt087_3.jpg" />                                                        <img src="http://img6.eachbuyer.com/x21/p86/bt087_4.jpg" />                                                        <img src="http://img6.eachbuyer.com/x21/p86/bt087_5.jpg" />                                                        <img src="http://img6.eachbuyer.com/x21/p86/bt087_6.jpg" />