Gravity FSX29 Aluminum Dual Suspension Mountain Bike Frame

The Gravity FSX29 is an aluminum dual suspension mountain bike frame set designed around 29-inch wheels, offering a complete foundation for riders who want to build a custom full suspension bike. The package goes well beyond a bare frame — it includes an XCT 29-inch suspension fork with lockout, a KS coilover rear shock with adjustable preload, damping, and lockout, plus a headset, seatpost, seatpost clamp, and stem. This means builders can focus their remaining budget on choosing their preferred drivetrain, brakes, and wheelset rather than sourcing these foundational components separately.

The frame itself features disc brake mounts for modern braking performance and a replaceable derailleur hanger that can be swapped if damaged, a practical detail that saves the cost of a new frame after trail mishaps. The KS rear shock provides meaningful adjustability, allowing riders to dial in their suspension for different body weights and terrain types, while the fork lockout lets you firm up the front end for paved climbs or smooth fire roads. With 135mm rear spacing, the frame accepts standard quick-release mountain bike wheels. While this is an older hub standard, it remains widely available and keeps wheel costs accessible for budget builds.