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A revolution in MTB wheels, combining the suspension and performance benefits of Sidekick anti-kickback hubs with the control and comfort of engineered compliance from Grappler Flux rims.
Grappler Sidekick Flux Enduro and Downhill Wheels are a groundbreaking revolution in MTB wheels. Tested over two World Cup seasons by the world's fastest athletes, these wheels consistently deliver top results. Sidekick hubs feature an adjustable deadband that eliminates pedal kickback, enhancing suspension performance and filtering drivetrain shock and vibration before it reaches the rider.
Low-profile Grappler Flux rims set new standards in compliance, strength, weight, and performance. Together, these technological marvels offer increased comfort, enhanced speed and control, and a lively ride feel that puts wooden-feeling hoops to shame. Efficient and predictable suspension performance, added traction and tracking, reduced rider fatigue, and nearly silent hub operation create a more confident and immersive ride experience for both pros and enthusiasts.
Improved suspension performance: Sidekick anti-kickback hub technology with adjustable deadband eliminates kickback and filters drivetrain vibration, improving ride feel and suspension performance
Free Speed: Sidekick has exceptionally low drag and whisper-quiet operation, carrying more speed than other freehub systems
Enhanced comfort and control: ultra-compliant, low-profile Flux Carbon rims add radial compliance and traction without reducing steering precision and feel
Lively Ride Feel: The low profile rim height combined with a double-butted 28-spoke build makes for a responsive and dynamic ride
Ultimate reliability: Proven on the World Cup and fully serviceable and rebuildable, so you can push your limits and ride with confidence. Lifetime Rim Warranty: Free lifetime carbon rim replacement
The Sidekick Hub by e*thirteen is a revolutionary rear mountain bike hub designed to enhance suspension performance by eliminating pedal kickback and filtering chain vibration.
How does Sidekick Work?
A proprietary freehub mechanism disengages the drivetrain from the rear wheel when coasting, and an adjustable engagement deadband filters kickback and chain vibration before it reaches the pedals, isolating all pedal feedback from the suspension.
What is Pedal Kickback?
Pedal kickback occurs when suspension movement applies tension to the chain, causing unwanted pedal movement and compromising suspension performance.
Learn More
Sidekick Flux Wheels
What is Flux?
Inspired by the legendary strength and durability of our LG1 Race rims, our riders called for discipline-specific DH and Enduro rims that pair our historic resilience with a more forgiving and compliant ride. The Grappler Flux Rim is our response: a masterpiece of engineering designed to deliver the robustness racers trust, with enhanced ride quality for peak performance and comfort.
How are Flux rims different?
Grappler Flux rims are a fusion of unique low-profile rim sections materialized in high-modulus carbon fiber or 6069-AL, meticulously engineered for the ultimate balance of strength and compliant, controlled ride feel. These innovative rims redefine performance in mountain biking, offering a new dimension of durability, ride quality, and comfort.
Who is it for?
Tailored for the competitive racer and the passionate enthusiast alike, Grappler Flux rims are available in Enduro and DH variations. Grappler Sidekick Flux wheels come in all popular axle configurations and are suitable for class 1 e-bike use. They’re the ideal choice for riders who challenge the limits of speed and agility on fast, aggressive tracks and trails while desiring more comfort, reduced fatigue, and enhanced traction.
