Trek X-Caliber 7 2017 Mountain Bike, frame size 18.5'', wheels 29''. Comes with receipt. rrp675 

Caution: X-Caliber will get you hooked. It packs all of Trek’s XC race hardtail experience into a light, fast bike that pairs the right wheel size with each frame size. Nothing beats the efficiency, simplicity and straight-up fun of an X-Caliber hardtail in 29er. Great for XC racing, or simply shredding singletrack. 

Trek X-Caliber 7 29er Hardtail Mountain Bike 2017 Features 

Alpha Gold Aluminium Frame 
RockShox 30 Silver 100mm Forks 
Shimano Acera M3000 9 Speed Gearing 
Shimano M315 Hydraulic Disc Brakes 
Bontrager XR2 29x2.00" Tyres