Proudly built in Barnoldswick, UK the Pro 4 continues Hope’s tradition of reliability, serviceability and performance. With more axle options than ever before, find your fit with the Hope Pro 4. Taller Flanges than the Pro 2 with no increase in weight for stiffer wheel builds. Taller Flanges than the Pro 2. Additional end caps sold separately. Equipped with stainless steel bearings. Boost Hubs are only compatible with Boost 15mm Thru Axle x 110mm Forks. Color: Black. Weight: 188. Hub Drilling: 32. Defined Color: Black. Front Axle: 15mm Thru x 110mm. Hub/Brake Compatibility: 6-Bolt Disc. Center to Flange, Left: 25. Center to Flange, Right: 33. Flange Diameter, Left: 57. Flange Diameter, Right: 57.