Alpha Gold Aluminium 27.5 Trek Semi-integrated, loose ball bearing, 1-1/8"" top, 1.5"" bottom

• High tech frame - The Alpha Gold Aluminuum frame is packed with features that make your ride better. A tapered head tube gives you more precise, confident handling on the front end, while Boost 141 rear hub spacing gives you shorter chainstays for more nimble handling at the back.

X-Caliber frame set is a high-value alloy mountain bike frame set for fast singletrack rides. Lightweight Alpha Aluminium tubes, shorter chainstays for extra agility and an incredible amount of versatility make it a great starting point for your cross country mountain bike.