HTZ i30 wheels are the perfect choice for your e-assist trail, enduro or downhill bike; ready for more distance, more laps, more climbs and more descents. With all those "mores" also comes more weight, continually bashing on the components of an e-bike. In order to overcome the increased forces induced by the technological progression of modern e-bikes, WTB designed the HTZ wheels to be reliable, sturdy and safe; keep riders, rolling.Capable of withstanding the forces of a modern e-bike, HTZ rim walls are 25-30% thicker in comparison to those of standard rimsTCS 2.0 Tubeless ready, for a dependable tubeless systemHTZ hubs feature a heat sink attached directly to the 6-bolt rotor mount to dissipate heat and reduce brake fade while using oversize 220mm rotorsDouble-stacked Enduro sealed bearings to further increase sti ness and extend bearing lifeHeat-treated steel freehub body with six pawls that simultaneously engage to evenly distribute torsional forces while pedalingIncreased rear hub axle sleeve outer diameter to 17mm (that s 2mm thicker than a standard MTB hub) while remaining compatible with all traditional 12mm thru-axles. This eliminates axle ex, improves ride quality and increases bearing longevity by reducing angular load while cornering or pedalingItem SpecificationsCassette Body TypeShimano HGColorBlackDefined ColorBlackDesigned for ebikeYesHub/Brake Compatibility6-Bolt DiscISO Diameter622 / Road / 29"Rear Axle12mm Thru x 148mmRim MaterialAlloyRim Width (Internal)30Tire TypeTubeless ReadyValvePrestaWheel Size29" WTB HTZ i30 Rear Wheel Rear Wheel UPC: 714401452640