-20%

* The colors of the products displayed in photos may vary from one screen to another depending on their calibration.

Brand new DUKE LUCKY JACK 30 SLS4 / DUKE CORE 28/28 XD IS SP

See related products at the bottom of the page to add a different freewheel body

The Lucky Jack SLS4 are the flagship of the XC carbon range. They are designed for all kinds of XC. The front/rear widths are differentiated: 30mm/28mm depending of the tire section. These rims are used in the XCO World Cup by the BMC Racing Team, 3-time world champion in 2022 with Pauline Ferrand-Prévot and used by Matthieu Van der Poel and many other riders.

CONFIGURATEUR
SPECIFICATIONS
TECHNOLOGIE
SERVICE

CONFIGURATEUR

I want to receive my wheels :

Built

Unbuilt

With :

Front wheel

Back wheel

Front option

Back option

0.0 g +/- 30 g

€1,419.00 -20%

€1,135.20 Tax included

Quantité disponible: 3

Expected shipping date: __/__/____ Refresh

Configurer complètement votre produit avant de pouvoir l'ajouter au panier

Quantity

dealer locator

Wheel owner's manual

Fast delivery and careful

International delivery

Delivery by Chronopost

Secure payment

SPECIFICATIONS

Supplier info

DESTOCK-BF2026-LJ6TERSSLS4-BRIS-SP

All Duke by JPRACINGBIKE1 wheels are assembled by hand in Vendée, France.

Crash replacement

We offer a crash replacement programme for carbon wheels. In case of accidents or heavy falls, violent shocks can damage your rim and make it impossible to use. With our Crash Replacement offer we offer you a service that allows you to replace your rim under special conditions: You get a 50 percent discount on the price of UD carbon & 3k Carbon rim, as well as the parts and the disassembly/reassembly. This offer is valid (for life) for an unlimited period of time for DUKE carbon rims and is transferable in the event of sale of the wheels to a third party.

Sapim Spokes

Sapim is THE go-to spoke brand, manufactured in Belgium since 1918. Several spoke models are available, depending on compatibility with your riding style and chosen rim:

Sapim CX-Ray: flat spoke, very light, durable, aerodynamic, and offers a very dynamic ride feel (309g / 64 pcs / 292mm)
Sapim CX-Sprint: flat spoke similar to the CX-Ray but thicker for even more stiffness (373g / 64 pcs / 292mm)
Sapim D-Light: round spoke, light and durable, with a central section diameter of 1.65mm, good value for money (344g / 64 pcs / 292mm)
Sapim Race: round spoke, strong and stiff with a central section diameter of 1.8mm (408g / 64 pcs / 292mm)

Nipples

Aluminum nipples with locking thread, available in 16 colors: black, red, silver, metallic grey, blue, aqua blue, gold, light gold, dark green, mint syrup green, lime green, lilac, pink, fuchsia pink, orange, and oil slick.

Accessories

The wheels are delivered fully assembled with valves and rim tape installed, four spare spokes and nipples, and an assembly certificate.

TECHNOLOGIE

Technology

SLS4 (Super light series 4)

SLS4 (Super Light Series 4)

An exclusive manufacturing process combining an optimized carbon fiber lay-up with aerospace-grade resin
- 10% lighter than the previous SLS3 generation
- More controlled vertical compliance for enhanced ride dynamics
- Better vibration filtering for improved comfort and control
Width

Optimized Internal Width

Maximizes tire volume and performance
- Enables lower pressures without sacrificing rolling efficiency
- Controls tire deformation for greater stability
- Improves control and comfort on all terrains
VFP (Varnish Free Process)

VFP (Varnish Free Process)

A varnish-free finish process
- Reduces VOC emissions and carbon dust during production
- More scratch-resistant surface
- Naturally glossy finish
Offset

OFFSET

Asymmetrical spoke lacing
- Balances spoke tension on both sides
- Improves lateral stiffness, stability, and long-term durability
- No added weight
Hookless

HOOKLESS

Hookless rim design
- Lighter than traditional hooked rims
- Increases the tire’s internal air volume, boosting comfort and grip at lower pressures
- Proven DUKE technology since 2011
AntiBurp

AntiBurp

Anti-burp and anti-debeading system
- Specially designed inner rim hooks lock the tire beads securely
- Eliminates air loss under heavy cornering or compression
- Prevents tire debeading, even in the event of a puncture
Tubeless Ready

Tubeless Ready

Tubeless-compatible rim design
- Compatible with UST and Tubeless Ready standards
- Also compatible with tube-type (clincher) setups

SERVICE

WARRANTY

Ride with complete peace of mind.
All our wheel builds and components are covered by a 2-year legal warranty.
DUKE carbon rims benefit from an extended 3-year commercial warranty.

LIFETIME CRASH REPLACEMENT

Accidents happen.
Your investment remains protected.
Our Crash Replacement program is valid for life, at no additional cost — even in the event of resale.

TIRE WIDTH & PRESSURE

Rim width, tire size, optimal pressure…
Every detail impacts efficiency, grip, and comfort.
Consult our technical recommendations to fully unlock the potential of your DUKE wheels — on road, gravel, or MTB.

USER MANUAL

Installation, tubeless setup, torque specifications, compatibility…
Find all essential information to use your wheels safely and correctly.
Clear. Precise. Designed for demanding riders who care about their equipment.

HUB MAINTENANCE

Our hubs are engineered to last.
Regular maintenance ensures smoothness, reliability, and long-term performance.
Access detailed procedures and official DUKE technical recommendations.

FIND A DEALER

Benefit from expert advice near you.
Our partner dealers are trained in DUKE high-performance products and standards.
Advice. Assembly. Service. High-level performance made accessible.