Grappler Sidekick Pro Flux Aluminum GR Enduro Rear MTB Wheel - 29" 148x12mm Boost XD

Grappler Sidekick Pro Flux GR Enduro Rear MTB Wheel

Size: 29"

Hub Spacing: 148x12mm Boost

Freehub: SRAM XD

Material: AL-6069 Welded Aluminum

Rim Width: 30mm internal width

Drilling: 28h rear (Sapim D-Lite spokes)

Weight: 1080g (+/- 5% tolerance)

Grappler Sidekick Pro Flux Aluminum GR Enduro Rear MTB Wheel - 29" 148x12mm Boost XD

Grappler Sidekick Pro Flux GR Enduro Aluminum Wheels represent a groundbreaking revolution in mountain biking, delivering elite performance at an incredible value. Tested over multiple World Cup seasons by the world's fastest athletes, these wheels consistently deliver top results. The rear-tuned build features optimized drive-side stiffness and reinforced lacing to deliver crisp power transfer with minimal flex when loading the rear wheel.

At the heart of the wheel is the second-generation Sidekick Pro J-bend hub, featuring a wider 9°/13°/18° adjustable deadband that eliminates pedal kickback, enhances suspension performance, and filters drivetrain shock and vibration. A magnetic pawl-retraction system, combined with modern bearings and seals, reduces drag for whisper-quiet, fast-rolling operation.

The low-profile Flux Pro Aluminum rims set new standards in compliance, strength, and weight. Built using durable AL-6069 welded alloy with a 30mm internal width, the Flux 55 Pro rims provide exceptional bump absorption, tracking, and traction on 29" wheels. Handbuilt to exacting precision with a double-butted 28-spoke build using Sapim D-Light spokes and locking brass nipples, this rear wheel provides a responsive, dynamic ride feel.

Key Features

• Sidekick Anti-Kickback Hub: Features an adjustable deadband (9°, 13°, 18°) that eliminates pedal kickback and filters drivetrain vibration to improve suspension performance.
• Rear-Tuned Build: Optimized drive-side stiffness and reinforced lacing deliver crisp power transfer with minimal flex under load.
• Flux 55 Pro Aluminum Rim: Low-profile, hookless 30mm internal width rim crafted from AL-6069 alloy for ultimate radial compliance and durability on 29" wheels.
• Free Speed & Silence: Magnetic pawl-retraction system delivers exceptionally low drag and whisper-quiet operation.
• Handbuilt Precision: Assembled with 28h Sapim D-Lite double-butted spokes and Sapim Secure Lock brass nipples for longevity.
• e-Bike Compatible: Fully certified and built to handle the demands of modern e-MTBs.

Specifications

• Brand Model: Grappler Sidekick Pro Flux GR Enduro
• Product Type: Rear Mountain Bike Wheel
• Wheel Size: 29"
• Hub Spacing / Axle: 148x12mm Boost Rear
• Freehub Body: SRAM XD
• Rim Material: AL-6069 Welded Alloy, Hookless
• Internal Rim Width: 30 mm
• Drilling / Spoke Count: 28h Rear
• Spokes & Nipples: Sapim D-Lite Spokes, Sapim Secure Lock Brass Nipples with Washers
• Hub Construction: Sidekick Anti-Kickback Hub with Adjustable Deadband (9°, 13°, 18°), 3-Pawl, Triple-Sealed, Fully Machined Aluminum Body
• Component Weight: 1080g (+/- 5% Factory Weight Tolerance)
• e-Bike Compatible: Yes
• Included in Box: Wheel, Tubeless Tape, Tubeless Valve, 3x Spare Spokes, 3x Spare Nipples, 3x Nipple Washers
• Warranty Protection: Limited Lifetime Rim Warranty / 10 Years on Hubs
• Aesthetic Colorway: Black