BMX sports is a large category, which also includes several branches, such as mud racing, dirt jump, street climbing, etc. Bicycles and accessories are also different for BMX branches, such as the size of the bike, the configuration and the specifications of the parts. This hub is suitable for BMX dirt jump bikes. This is BMX cassette hub, model number is BH011, the O.L.D of front hub 100mm, of the rear hub 135mm with a disc brake mount, which is completely different from the conventional BMX hub.The dirt jump hub is made of an aluminum alloy shell, chromium molybdenum steel shaft, weight 185g front hub and 550g rear hub, strong enough but not too heavy. The color is gorgeous, the feel is silky, and it has widely positive review since its launch. It usually match 16T BMX freewheel, also you can match 18T or 20T single speed freewheel.We are specialized in bicycle hubs, such as fixed gear bike hub, BMX hub, MTB hub etc., we&nbs…