OPEN U.P. “GravelPlus" frameset

The OPEN U.P. “GravelPlus" frameset is an unpainted carbon fiber bicycle frame designed for gravel and mixed-terrain cycling. It is engineered to accommodate a wide range of tire sizes, making it suitable for riders seeking versatility across road, gravel, and light off-road conditions. This frameset is intended for cyclists who wish to build a custom gravel bike tailored to their specific component preferences.

• Unpainted carbon fiber frame construction
• Compatible with both 700c and 650b wheel sizes
• Designed for flat mount disc brakes
• Internal cable routing for a clean appearance
• Clearance for wide tires up to 700c x 40mm or 650b x 2.1"
• 12x142mm rear thru-axle dropout spacing
• Threaded bottom bracket shell (BSA standard)
• Multiple mounting points for bottles and accessories
• Tapered head tube for improved front-end stiffness

This frameset is supplied unpainted, allowing for custom finishing or direct use as-is. It is compatible with a wide range of drivetrain and wheel configurations commonly used in gravel cycling.

Available Variants: