Rapid Drive 54 hub instantly transfers effort into forward momentum. Original equipment replacement Bontrager PowerLine Comp 40 27.5 Disc wheels. Convert to tubeless with TLR rim strip and valve, sold separately. 15x110mm front, 148x12mm rear, 6-bolt disc, and Shimano freehub. Extra wide alloy rim (44mm outer, 40mm inner width) is perfect for Plus tires. Does not include skewer, reflector, rim strip, valve, or owner's manual.