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Grappler Sidekick Pro Flux Aluminum GR Enduro Rear MTB Wheel

Regular price $469.95
Sale price $469.95 Regular price $469.95
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SKU:WH5GKA-222

Size29"
Hub Spacing148x12mm Boost
FreehubMicrospline
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Grappler Sidekick Pro Flux GR Enduro Aluminum Wheels are a groundbreaking revolution in MTB, at an incredible value. Tested over multiple World Cup seasons by the world's fastest athletes, these wheels consistently deliver top results.

Second-generation Sidekick Pro J-bend hubs are 140g lighter and feature a wider 9°/13°/18° adjustable deadband that eliminates pedal kickback, enhancing suspension performance and filtering drivetrain shock and vibration before it reaches the rider. A magnetic pawl-retraction system, combined with new bearings and seals, reduces drag, making these wheels the fastest-rolling we have ever tested.

Low-profile Flux Pro Aluminum rims set new standards in compliance, strength, weight, and performance. Flux 55 Pro Aluminum Rims provide exceptional durability and ample compliance in 29" front and rear wheels. 27.5" rear wheels are built with buriier Flux 66 GR rims to withstand the added abuse of mixed-wheel gravity use.

Together, these technological marvels offer increased comfort, enhanced speed and control, and a lively ride feel that won't disappoint. Efficient, 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.

  • Rear-tuned build: drive-side stiffness and reinforced lacing deliver crisp power transfer with minimal flex when you load the rear wheel.
  • Freehub options to match your drivetrain: choose XD, Microspline.
  • Sidekick anti-kickback hub technology eliminates kickback and filters drivetrain vibration, improving ride feel and suspension performance
  • Enhanced comfort and control: ultra-compliant, low-profile Flux Aluminum rims add radial compliance and traction without reducing steering precision and feel
  • Lightweight, durable Flux 55 Pro Rims provide ample compliance, bump absorption, and traction in front and rear 29" wheels, while more robust Flux 66 Pro rims are used in 27.5" rear wheels for added toughness
  • Free Speed: Sidekick has exceptionally low drag and whisper-quiet operation, carrying more speed than other freehub systems
  • Lively Ride Feel: The low profile height combined with double-butted 28-spoke build makes for a responsive and dynamic ride
  • Handbuilt to exacting precision with AL 6069 welded rims, Sapim D-light spokes and locking brass nipples, for ultimate performance and longevity
Color
Black
Drilling
28h rear
e-Bike Compatible
YES
Freehub Mount
XD / Microspline (each sold separately)
Hub
Sidekick anti-kickback hub with adjustable deadband (9°, 13°, 18°), 3-pawl, triple-sealed, fully machined aluminum body
Included
Wheel, tubeless tape, tubeless valve, spoke x3, nipple x3, nipple washer x3
Material
Aluminum (AL-6069)
Protection
Limited Lifetime Rim Warranty / 10 years on Hubs
Rim
Alloy (AL 6069), hookless, 6-bolt Limited Lifetime Rim Warranty / 10 years on Hubs
Size
29", 27.5"
Spokes/Nipples
Sapim D-Lite spokes, Sapim Secure Lock brass nipples, nipple washers
Weight
Single wheel weight
29" 148x12mm Boost XD: 1080g
29" 148x12mm Boost Microspline: 1080g
29" 157x12mm Super Boost XD: 1080g
29" 157x12mm Super Boost Microspline: 1080g
27.5" 148x12mm Boost XD: 1110g
27.5" 148x12mm Boost Microspline: 1110g
27.5" 157x12mm Super Boost XD: 1110g
27.5" 157x12mm Super Boost Microspline: 1110g
Variations in paint and layup can result in +/- 5%
Width
30mm internal width

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