DUKE Lucky Jack SLS4 Carbon MTB Wheelset Mad Max CL Boost XD
DUKE Lucky Jack SLS4 Carbon MTB Wheelset Mad Max CL Boost XD
Stage 21 Bikes
23582 Moulton Parkway
#111
Laguna Woods CA 92637
United States
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DUKE Lucky Jack SLS4 Carbon Mountain Bike Wheelset – Boost / XD
From elite cross-country racers to aggressive trail and enduro riders, DUKE mountain bike wheels are engineered to thrive on demanding terrain. The Lucky Jack SLS4 carbon wheelset blends ultralight construction with trail-proven durability, delivering precise handling, rapid acceleration, and confident control when the trail gets technical.
Built around DUKE Mad Max CL Straightpull hubs and laced with Sapim Sprint spokes, this wheelset offers a stiff, responsive ride feel without sacrificing impact resistance. The modern 30mm internal width supports today’s wider MTB tires, improving traction, cornering stability, and overall ride confidence across mixed terrain.
Recommended Use
• Gravel
• Cyclocross (CX)
• Cross-Country (XC)
(Capable enough for aggressive trail riding thanks to wide rim profile and durable carbon layup)
Rim Specifications
• Rim model: DUKE Lucky Jack SLS4
• Material: Carbon
• Internal width: 30mm
• External width: 36mm
• Rim height: 20mm
Hub & Spoke Specifications
• Hub model: DUKE Mad Max CL Straightpull
• Spokes: Sapim Sprint (2.0 / 1.7 / 2.0mm)
• Freehub body: XD
• Hub color: Black
Axle Compatibility
• Front: 12 × 110mm Boost
• Rear: 12 × 148mm Boost
Features & Benefits
• Lightweight carbon rims for fast acceleration
• 30mm internal width for modern MTB tire profiles
• Straightpull hub design for stiffness and durability
• Sapim Sprint spokes for strength under load
• Boost spacing for improved wheel stiffness and control
• Ideal for XC racing, gravel, and aggressive trail riding
Why Choose DUKE Wheels?
• Race-proven European carbon wheel technology
• Balanced blend of low weight and real-world durability
• Designed for precision handling and confident descending
• OEM-quality build for demanding riders
A lightweight yet rugged carbon wheelset built for riders who demand speed, control, and reliability across varied terrain—from race day to all-day trail missions.