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

Drilling
28h front, 28h rear

Freehub Mount
Sram™ XD™ / 3-Pawl / 12°/15°/18° Adjustable Deadband

Hub
Triple-sealed, fully machined aluminum hub

Included
Wheel, tubeless tape, tubeless valve, spoke x3, nipple x3, nipple washer x3, 15mm front endcaps

Rim
Carbon, hookless, 30mm internal width with LIFETIME GUARANTEE

Size
27.5", 29"

Spokes/Nipples
Sapim Race 2.0-1.8-2.0mm spokes, 14G 7075 Alloy Nipples, stainless nipple washers

Weight
Single wheel weight w/valves + tape
Front 29: 900g
Rear 27.5 Boost XD Driver:1160g
Rear 29 Boost XD Driver: 1200g
Rear 27.5 SuperBoost XD Driver:1170g
Rear 29 SuperBoost XD Driver: 1210gWidth30mm internal width

Product Fitment