Features:<br />CNC machining integrated, intensity is more secure, appply for long time cycling<br />Extended edition plus or minus tooth shape, the chain can effect better<br />Can be used with many accessories for mountain bikes and can be combined with a variety of configuration options<br />Wide,Hollow Design,Ultralight.<br />Adopts aluminum alloy CNC cutting to ensure the accuracy of product use.<br />Material is aluminum alloy, hardness is much higher than the originals steel chain wheel, strong and practical.<br/>Specifications:<br />Material: aluminum alloy<br />Thickness: 4mm<br />Color: black, red (optional)<br />Type: 32/34/36T (optional)<br />34T: Diameter 145MM<br />32T: diameter 135MM<br />36T: Diameter 152MM<br />Item weight: 36T: 57.5g<br />32T: 40g<br />34T: 47g<br />Package size: 150 * 60 * 80mm / 5.9 * 2.4 * 3.1in<br />Package weight: 36T: 82.5g<br />32T: 65g<br />34T: 72g<br/>Packing List:<br />1 * Bicycle Crank