This Trek ProCaliber is a quick and nimble cross country hard-tail racing bike. Great for less technical mountain bike trails or even adventurous gravel rides. Sized XL, fits people 6'0" and taller. - 29" wheels, 29x2.25 tires - SRAM GX components, 32t 1x front chainring, 10-52 12 speed cassette - convenient lockout shifter for front shock - does not have a dropper post.