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Wheel(s) DUKE LUCKY JACK SLS5 / DT SWISS 240 DISC SP
Our XC icon. Reinvented.
Now 10% lighter than the previous generation, the Lucky Jack SLS5 also gains 15% more vertical compliance. Ultralight yet tough, it delivers even more dynamic ride feedback and unmatched comfort on the most demanding courses.
Available in two internal widths and three weight options, it's trusted by top World Cup athletes such as Loana Lecomte, Kate Courtney, Jordan Sarrou, Titouan Carod and David Valero.
Recommended builds:
245 g*: XC front
285 g*: XC rear or [very] aggressive XC front
350 g*: [very] aggressive XC rear
*Weight without stickers. Add 8 g per rim.
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Technology
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SLS2 Super Light Serie 2
SLS5 (Super Light Series 5)
An exclusive manufacturing process combining an optimized carbon fiber lay-up with aerospace-grade resin
- 10% lighter than the previous SLS4 generation
- 15% more controlled vertical compliance for enhanced ride dynamics
- Increased resistance to lateral loads and vertical impacts
- Better vibration filtering for improved comfort and control -
DRC (Dynamic Response Comfort)
DRC (Dynamic Response Comfort)
Controlled vertical flex and rebound
- More dynamic handling during weight transfers and bermed corners
- Increased comfort on rough terrain
- Reduced energy loss, more speed and efficiency -
SpokeCore
SpokeCore
Molded spoke holes that eliminate the need for drilling
- Preserves carbon fiber integrity
- Reinforces the structure
- Allows for precise control of vertical and lateral stiffness
- Reduced weight and increased reliability -
ImpactGuard
ImpactGuard
Integrated energy-absorbing inserts
- Absorbs both low and high-intensity impacts
- No added weight
- Fully integrated into the rim structure to increase durability -
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 -
6Ters
6TERS
Differentiated internal rim widths for the front and rear wheels
- Wider front rim increases grip, handling, and control
- Narrower rear rim for better strength, stability, and efficiency
- Developed in partnership with leading XC race teams -
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 -
Anti-pinch
AntiPinch
Anti-pinch rim bead design
- Prevents tire cuts from hard impacts
- Dissipates shock energy
- Allows low-pressure riding without pinch-flat risks -
Tubeless Ready
Tubeless Ready
Tubeless-compatible rim design
- Compatible with UST and Tubeless Ready standards
- Also compatible with tube-type (clincher) setups
Sapim Spokes
Sapim is THE brand of spokes, made in Belgium since 1918. Several models of spokes are available, within the limits of compatibility with the practice and the chosen rim:- Sapim CX-Ray: flat spoke, very light, durable, aero and very dynamic (309g / 64 pcs / 292mm)
- Sapim CX-Sprint: Flat spoke identical to the CX-Ray but thicker for even more rigidity (373g / 64pcs / 292mm)
- Sapim D-Light: round spoke, light and durable, with a 1.65mm diameter central part, good value for money (344g / 64 pcs / 292mm)
- Sapim Race: round, sturdy and rigid spoke with a 1.8mm diameter central part (408g / 64 pcs / 292mm)
Nipples
Aluminium nipples with locking thread, available in 16 colours: black, red, silver, metal 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 assembled with valves and rim tape fitted, four spare spokes and nipples and an assembly certificate.
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 the rim (UD SLS carbon) 40 percent (3k Carbon), 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.
Brand
DT SWISS 240
Supplier info
LJ-SLS5-DT240EXPCLSP
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