Gravity Bullseye Monster 26" Fat Bike Frame Kit

The Gravity Bullseye Monster 26" Fat Bike Frame Kit provides the structural foundation for a custom fat tire bicycle build. Built around a TIG-welded 6061 aluminum alloy frame with 170mm symmetrical rear spacing, it is engineered to clear massive 26 x 4.0 tires while keeping overall weight in check compared to steel alternatives. The included CrMo steel rigid fork matches the frame's fat tire clearance with 135mm front spacing and a standard 1-1/8" threadless steerer, delivering durability and simplicity on snow, sand, or packed trails where a rigid setup is preferred.

What sets this kit apart from a bare frame purchase is the inclusion of key assembly components. The headset and stem come pre-installed, and a seatpost with clamp is included, so builders can focus their budget and sourcing effort on wheels, drivetrain, brakes, and handlebars. Practical details like a replaceable rear derailleur hanger, water bottle cage bosses, and seatstay rack brazeons show that the frame is designed with real-world riding utility in mind. In the 18-inch size and Matt Nautical Blue finish, it suits riders around 5'10" to 6'0" who want a solid, no-nonsense platform for a fat bike project.