Wheel Factory hand built versatile wheels WTB's HTZ Trail series of rims are designed specifically for EBikes, with 20-30% thicker walls in comparison to standard rims Extruded from AL 6069 for durability at a reasonable weight 7mm rim offset to balance spoke tension for the strongest build possible TCS 2.0 rims deliver WTB's easiest to mount and most reliable tubeless system Bitex 211RE Ebike hubs features a heavy duty steel axle and driver body 54 POE with all 6 pawls engaging at the same time 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