Kit Cadre Stay Strong Grail C.1 - Burgundy/Matte Black

STAY STRONG GRAIL C.1 FRAME KIT

The Stay Strong Grail C.1 frameset is one of the most advanced kits ever developed by Stay Strong for BMX racing . Designed with the riders of the Stay Strong Factory Team and tested in the biggest international BMX race competitions , it offers an exceptional level of stiffness, precision, and responsiveness to meet the demands of the highest-performing riders.

Based on the proven geometry of the Stay Strong For Life , the Grail C.1 delivers a perfect balance of high-speed stability, maneuverability, and control. Its predictable handling inspires confidence from the very first laps, while offering maximum efficiency during starts and accelerations. Made from hand-laminated Toray Premium carbon fibers , the Grail C.1 boasts an optimized construction that combines lightness, strength, and efficiency. Each carbon layer is precisely positioned to ensure excellent power transfer and durability suited to the demands of BMX racing .

The frame features an exclusive Fixed Dropout system , allowing riders to choose between two chainstay lengths without compromising rear triangle stiffness. This design ensures perfect drivetrain alignment, simplified wheel mounting, and consistent handling in all racing conditions. It's a design particularly suited to the demands of BMX racing and riders seeking a high-performance, precise frame.

Its T47 bottom bracket further enhances the overall rigidity. Wider and more robust, it improves bearing retention while limiting deformation under heavy stress. Each pedal stroke is thus transmitted with maximum efficiency for crisp acceleration and optimal performance, essential in BMX racing .

The Ultra carbon fork perfectly complements the Grail C.1. Developed to offer an excellent balance of stiffness, precision, and lightness, it ensures precise steering control while maintaining the responsiveness required for BMX racing . The combination of the Grail C.1 frame and the Ultra fork thus provides a high-performance and cohesive foundation for building a BMX racing bike designed for competition, whether for training or high-level races.

FEATURES

• Hand-laminated Toray Premium carbon fiber construction
• Developed in collaboration with the Stay Strong Factory Team
• Proven racing geometry derived from Stay Strong For Life
• Exclusive Fixed Dropout system with two rear base length positions
• T47 bottom bracket for optimal stiffness and efficiency
• Exceptional power transfer, instant acceleration and precise handling
• Available in 5 Pro sizes

RECOMMENDATIONS / GUARANTEES

Stay Strong carbon fiber frames must be installed ONLY by a professional bicycle mechanic . Failure to follow instructions may damage the frame and void the warranty. NEVER ride with a cracked or broken frame . This could result in loss of control, causing an accident, personal injury, or even death.

Carbon fiber can conceal damage from impacts or accidents. In the event of an accident or impact, stop riding immediately and have the frame inspected by a professional bicycle mechanic for any damage.

GEOMETRIES / SIZES