Wheel Factory hand built versatile wheels WTB's KOM Trail rims feature the same Ibeam construction as their popular KOM Tough rims while utilizing a cost-conscious alloy to offer trusted durability at an affordable cost DT 370 hubs are compatible with all Ratchet LN freehub bodies as well as DT's 36 and 54 POE ratchet upgrade options All hubs use IS6B disc brake mounts Built with straight gauge DT Swiss Champion spokes (2.0mm) and brass DT Swiss Squorx nipples Hand laced and trued in the USA