Gravity FSX 26 inch Full Suspension Bike Frame

The Gravity FSX is a full-suspension mountain bike frame designed around 26-inch wheels, built from custom-formed, TIG-welded 6061 aluminum with hydroformed tubes in the front triangle. The frame uses an oversized bearing CantiBeam Link single-pivot suspension design, which provides a straightforward and durable rear suspension platform. An adjustable KS coilover rear shock is included with the frame, giving buyers a ready-to-use suspension system with preload adjustment right out of the box — a meaningful inclusion that reduces the cost and complexity of sourcing components for a ground-up build.

The frame is set up exclusively for disc brakes and features 135mm rear dropout spacing, a 68mm English threaded bottom bracket shell, and a replaceable rear derailleur hanger. A 31.8mm quick-release seatpost clamp and standard 1⅛" headset are also included. Builders will need to supply their own fork, wheels, drivetrain, brakes, bottom bracket, and 27.2mm seatpost to complete the bike. This frame is best suited for riders who want an affordable platform for a custom trail bike project or who are looking to replace a damaged frame on an existing 26-inch full-suspension build.