The Spirit hub is forged from a single piece of CrMo material. This results in a beautifully simple, strong and reliable hub. The center of the axle tapers slightly giving an hour glass shape to reduce weight while maintaining strength. The 36 hole flanges are widely spaced and shaped to maximize wheel strength. Spoke holes are beveled and slightly de-tempered (softened) to minimize spoke breakage. The 42mm bearings are extremely durable: Evolution of Balance Award Winner Cary Gray rode his loaded KH36 more than 10,000km before needing a replacement set. Compatible with all ISIS spline cranks.? Features: Flange spoke hole size are optimized for 14g spokes (2.5 mm, 0.5 mm bevel) Forged CrMo one piece Flanges are carefully shaped and sized for optimal wheel strength Sealed, 42 mm bearings with standard 100 mm spacing Flange width Center flange to center flange 75mm, Flange diameter 65.5 mm Bearings: 22 x 42 x 12 Weight: 580g Hub detail: Flange Diameter: 56mm Hub Width: 70mm Spoke hole diameter: 2.8mm Hub Drilling: 36
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