HTZ i30 is our first purpose-built eMTB wheelset for those who want to smash through rock gardens with confidence and not have to worry about if their wheels will make it through the ride. What makes HTZ wheels e-bike specific? An asymmetric rim design with 20% thicker walls, a heat-treated steel freehub body with six pawls of simultaneous engagement, oversized 17mm axle sleeves, double-stacked Enduro sealed bearings at the inboard end of the driver body and rotor mount heat sinks all create a bombproof wheelset specifically tailored to meet the demands of full-power eMTBs. Every component of our new HTZ wheels was meticulously designed to create the most dependable e-specific wheels on the market. Use: E-Bike SPECIFICATIONS: (Max spoke tension range: 110-120KgF) Product Wheel Diameter Position Spacing Spoke Holes / Offset Driver Body Rotor Mount Inner Rim Width Rim ERD* Weight** Max Rider Weight Part Number HTZ i30 x 27.5" wheel, 148 x 12mm, 32h, 6-Bolt, Shimano HG 11sp 27.5" Rear 148x12mm 32-hole / 6mm Shimano HG 11spd 6-bolt 30mm 569 1405g 330 lbs W045-0270 HTZ i30 x 27.5" wheel, 148 x 12mm, 32h, 6-Bolt, Shimano MS 27.5" Rear 148x12mm 32-hole / 6mm Shimano Microspline 6-bolt 30mm 569 1411g 330 lbs W045-0272 HTZ i30 x 27.5" wheel, 148 x 12mm, 32h, 6-Bolt, SRAM XD 27.5" Rear 148x12mm 32-hole / 6mm SRAM XD 6-bolt 30mm 569 1376g 330 lbs W045-0271 HTZ i30 x 29" wheel, 110 x 15mm, 32h, 6-Bolt 29" Front 110x15mm 32-hole / 6mm n/a 6-bolt 30mm 605 1235g 330 lbs W045-0263 HTZ i30 x 29" wheel, 148 x 12mm, 32h, 6-Bolt, Shimano HG 11sp 29" Rear 148x12mm 32-hole / 6mm Shimano HG 11spd 6-bolt 30mm 605 1456g 330 lbs W045-0264 HTZ i30 x 29" wheel, 148 x 12mm, 32h, 6-Bolt, Shimano MS 29" Rear 148x12mm 32-hole / 6mm Shimano Microspline 6-bolt 30mm 605 1462g 330 lbs W045-0266 HTZ i30 x 29" wheel, 148 x 12mm, 32h, 6-Bolt, SRAM XD 29" Rear 148x12mm 32-hole / 6mm