Developed using the proven technology of our well established mountain bike products our Fat bike hubs deliver excellent performance.Light, smooth, dependable and highly adaptable for different forks. Our 135mm and 150mm front fat hubs are CNC machined from high strength forged 7075 alloy and feature two durable 6804 sealed cartridge bearings.150mm hub specifications:Supplied to fit 150mm x 15mm thru-axle.Weight: 223gDimensions:Flange spacing: 111mmFlange diameter: 58mmC-L 48mmC-R 60mm