e*thirteen 29” Grappler Sidekick Flux Aluminum Enduro Rear Wheel – 148×12 mm (HG or XD, ~1196 g)

The e*thirteen Grappler Sidekick Flux Aluminum Enduro Wheel delivers next-level performance for aggressive trail and enduro riding. By combining the innovative Sidekick rear hub with lightweight, durable Flux aluminum rims, this wheel set redefines traction, suspension performance, and ride feel on demanding terrain. 

Revolutionary Sidekick Hub

• Adjustable engagement deadband (12° / 15° / 18°) isolates pedal kickback and chain vibration to improve suspension activity, traction, and comfort on rough descents.  
• Whisper-quiet freehub with low drag for better rolling speed and efficiency.  

Flux Aluminum Enduro Rims

• Engineered for compliance, strength, and controlled ride quality — reducing harshness without sacrificing stiffness.  
• Low-profile, 30 mm internal width optimized for modern enduro tire profiles and improved lateral stability.  

• Double-butted Sapim D-light spokes with locking alloy nipples enhance long-term reliability and performance.  
• 6-bolt disc mount and tubeless-ready construction (tubeless tape and valve included).  

Specifications

• Wheel Type: Rear Enduro Wheel
• Axle: 12×148 mm Boost (HG freehub variant shown)
• Hub: Sidekick with adjustable deadband
• Rim: 6069 aluminum, hookless, welded, tubeless ready
• Spokes: Sapim D-light
• Brake Compatibility: 6-Bolt disc
• Internal Rim Width: 30 mm
• Weight: ~1196 g (29″) †  
• Warranty: 5-year guarantee against defects  

Why Ride It?

If you push hard on technical trail features and want a wheel that enhances suspension performance, traction, and overall control, these wheels are engineered for just that. The Sidekick hub’s anti-kickback technology and engineered Flux rim compliance make every descent smoother and more confidence-inspiring — especially in rough, high-speed terrain.