Trimax MAX40BK Motorcycle Disc U-Lock - Black with Black PVC Shackle Durable PVC sleeve covers chrome steel shackle to prevent marring and scratching Hardened solid steel lock prevents prying, sawing and hammer impacts Ideal for bicycles, motorcycles, spare tires, trailers and much, much more Type B key, which is an ultra secure wise wafer key. Lock core design provides the highest degree of protection against picking. Includes 2 keys. 1/2 inch hardened chrome plated solid steel shackle