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Wheel(s) DUKE STRADA Æra 56 / Sapim CX-Carbon Spokes
CX-Carbon Edition. 1139 g* of optimised aero speed. Strada Æra 56 combines the CFD-developed Æra signature relief with a high-end carbon-spoke build, at a remarkable weight for a 56 mm aero wheelset.
Versatile within the aero universe, it delivers an excellent balance of speed, crosswind stability and steering precision, without limiting aero performance to race day only.
Key processes & technologies:
• 24 mm internal width, optimised for 28 mm tyres**
• CX-Carbon Edition: Sapim CX-Carbon 365 spokes, 20h front / 24h rear
• DUKE MadMax3 T365 hubs: dedicated interface for 3.65 × 5.5 mm T-head carbon spokes
• Æra CFD profile: signature relief reducing drag by up to 10% vs a smooth rim, with no loss of crosswind stability
• SLR5: advanced layup of Toray T1100 carbon fibres and aerospace-grade resin
• SpokeCore: moulded spoke passages for a more homogeneous and more reliable structure
• VFP: clearcoat-free finish, more durable and more environmentally friendly
• DRC: vibration filtering for increased comfort and precision
• Hooked / Tubeless Ready: optimum safety and compatibility with modern tyres
Result:
A fast, light and genuinely usable aero wheelset - designed to raise average speed while remaining predictable on real roads.
* Weight +/- 30 g for a pair of wheels drilled 20h front / 24h rear, built with DUKE MadMax3 T365 hubs and Sapim CX-Carbon 365 spokes.
** Compatible with 28 mm and wider tyres.
- CONFIGURATEUR
- SPECIFICATIONS
- TECHNOLOGIE
- SERVICE
CONFIGURATEUR
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SPECIFICATIONS
Strada Æra 56 CX-Carbon Edition is the high-end entry into DUKE’s optimised aero universe. It combines the Æra relief, designed to reduce drag while preserving stability, with Sapim CX-Carbon 365 spokes and DUKE MadMax3 T365 hubs.
The Æra 56 profile bridges the gap between the versatility of classic Strada wheels and the pursuit of pure speed of deeper aero profiles. It is designed to ride fast often, not only on race day.
Its signature Æra relief, developed using CFD, reduces drag by up to 10% compared with a smooth rim of the same depth, without sacrificing crosswind stability. The goal is usable aerodynamic gain on real roads.
Based on the SLR5 process, the rim combines Toray T1100 fibres, aerospace-grade resin and a highly precise layup to maintain an excellent weight / stiffness / reliability ratio despite its speed-oriented profile.
DRC optimises vibration filtering and high-speed stability. SpokeCore passages guarantee a homogeneous and durable structure. With its 24 mm internal width, the rim is optimised for modern 28 mm road tyres.
This CX-Carbon Edition combines DUKE Elite carbon rims with Sapim CX-Carbon 365 spokes and DUKE MadMax3 T365 hubs. The benefit is not only weight: the build lowers rotating mass, sharpens steering precision and delivers a more immediate response at every acceleration.
The Sapim CX-Carbon 365 uses an ultralight carbon structure and a 3.0 × 1.5 mm aerodynamic teardrop profile. Its very low elongation - around 0.43 mm at 1200 N - limits energy loss under pedalling load and gives the wheelset a particularly direct feel.
The 20-spoke front / 24-spoke rear layout keeps weight extremely low without giving up lateral stiffness. The front wheel keeps a precise road feel, while the rear wheel remains stable under power during sprints and hard accelerations.
DUKE MadMax3 T365 hubs use a dedicated interface for the 3.65 × 5.5 mm T-head format of the CX-Carbon spoke. They complete the build with a high-end mechanical platform that matches the level of this edition.
Very light, direct and consistent in every component choice, this CX-Carbon Edition is aimed at riders who want a truly high-end build: not just lighter, but more precise, more reactive and more efficient on the road.
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
-
Oriented-drillings
AERA (Airflow optimization by CFD*)
- Signature aerodynamic micro-profile
- Disrupts airflow and reduces turbulence
- No deterioration in stability in crosswind conditions
* Computational fluid dynamics -
SLR5 (Super Light Road series 5)
SLR5 (Super Light Road series 5)
Exclusive manufacturing process combining optimized carbon fiber layup and aerospace-grade resin
- On average 20% lighter than the SLR2 generation
- Increased resistance to lateral stresses and vertical impacts
- Better vibration filtering for increased comfort and control -
Hooked
Hooked
Hooked rim design
- Optimized for road and gravel tire pressures
- Ensures secure bead retention
- Wider internal width offers aerodynamic benefits -
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 -
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 -
Tubeless Ready
Tubeless Ready
Tubeless-compatible rim design
- Compatible with UST and Tubeless Ready standards
- Also compatible with tube-type (clincher) setups
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