Rapid Drive hub design instantly transfers effort into forward momentum. Tubeless Ready (TLR) rims allow for quick transition to tubeless system. Tubeless Ready (TLR) rims allow for quick transition to tubeless system. Offset spoke bed reduces wheel dish for stiff and stable performance. Stacked lacing alignment provides a better spoke bracing angle for a stiffer wheel. Lightweight alloy rim (33mm outer, 28mm inner width) and 54 tooth Rapid Drive hubs. 6 bolt 110x15 front hub, 148x12 rear hub. Includes Shimano freehub.