Rapid Drive 54 hub instantly transfers effort into forward momentum. Tubeless Ready (TLR) rims allow for quick transition to a tubeless system upgrade. Boost 110/148 wider hub flanges enhance the bracing angle for a stiffer wheel. An ultra-durable rim with 29 mm internal, 34 mm external width, 28 hole front/rear. 28 front/rear 14G spokes with brass nipples. 6 bolt disc, Shimano 10-/11-speed, SRAM XD driver available separately. Includes an installed TLR rim strip, TLR valve and valve core removal tool.