All SPANK Vibrocore and Radially Compliant Wheels, SPIKE and OOZY Wheels, and GRAVEL Wheels, have been upgraded to SPANK’s all new HEX DRIVE 102T Hub system, with 3.5° Engagement, and 6 Pawl, 18 contact point drive system. HEX hub wheels feature upgraded seals, “Bite Block” alloy freehubs, oversized bearings and alloy axles, and a unique flange design which minimizes dish in wheels and the resulting spoke tension range.