All Challenge aluminum seats feature an exclusive spinal relief zone, and an array of ventilation holes not found on other shell seat designs. The aluminum material draws heat away from your body when used with a seat pad that allows thorough ventilation.

Butted aluminium alloy tubes, unparalleled stiffness and rigidity at a low weight, strength where it matters, air where it doesn't. Not as simple as it sounds, but you get the picture. It took a great deal of work to achieve such outstanding results.

Challenge award winning carbon rear end is the piece de resistance: stiff, strong, and very light. Traditionally an expensive handcrafted process, we have designed our carbon rear fork to be injection moulded by machine. By using aerospace techniques, we keep material, production methods advanced while keeping the price low.

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Challenge Split Tube Frame technology. Clean lines, aerodynamic form, and higher strengh. One piece constuction from the front all the way to the rear drop outs.

Placing the central shock absorber below the frame retains the beautiful Challenge lines. The pass through link to the ultra rigid seat spine and properly placed swing arm pivot delivers a plush ride while maintaining excellent power delivery.

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