Wheel Factory hand built versatile wheels WTB's HTZ rims are EBike rated and feature a 20% thicker I-beam construction than their popular KOM Tough rims with asymmetrical drilling for a bombproof rim that wont break the bank DT Swiss 370 Hybrid hubs offer thicker flanges and steel drive rings for long term reliability Built with 13 gauge DT Swiss Champion straight gauge spokes (2.34) and brass DT Swiss nipples Hand laced and trued in the USA