The chainwheel and crank are made of high quality aluminum alloy， great for bicycle refitting.<br><br><strong>Features:</strong><br>Durable aluminum alloy construction.<br>5 bolts fixing.<br>Suitable for 103mm bottom bracket.<br>Great for bicycle refitting.<br><br><strong>Specifications:</strong><br>Material: Aluminum alloy<br>Teeth: 44T<br>Crank Length: 170mm / 6.69in<br>Color: Silver<br>Total Weight: 748g / 1.65lb<br>Package Size: 27 * 18 * 3cm / 10.63 * 7.09 * 1.18in<br>Package Weight: 753g / 1.66lb<br><br><strong>Package List:</strong><br>1 * Chainwheel<br>1 * Crank