Dual Arm Cup

KSR Dual Arm Cup – Upgrade for Existing TT Bars

The KSR Dual Arm Cup is a high-performance aerodynamic upgrade designed for riders looking to improve efficiency and stability while retaining their existing time trial or track handlebar setup. Combining advanced materials, modern aero shaping, and broad compatibility, the KSR Dual Arm Cup delivers measurable performance benefits.

High-Strength PPA-CF Construction

Manufactured using carbon fiber–reinforced PPA (PPA-CF), the KSR Dual Arm Cup offers an exceptional balance of stiffness, strength, and durability. This advanced engineering polymer provides excellent resistance to fatigue, heat, and deformation under sustained rider load, ensuring a solid, confidence-inspiring platform during maximal efforts.

Aerodynamically Optimized & Velodrome Tested

The arm cup profile is shaped to manage airflow around the forearms, reducing turbulence through the cockpit and supporting a narrower, more controlled riding position. Velodrome testing has confirmed aerodynamic gains compared to conventional flat arm cups, particularly at race-relevant speeds. Raised sidewalls further enhance arm stability and repeatable positioning.

Designed for Compatibility

Designed to integrate seamlessly with existing TT  bar systems. A versatile mounting layout ensures compatibility across a wide range of cockpits and riser systems.

Precision Fit Through Additive Manufacturing

Additive manufacturing allows complex internal reinforcement, optimized wall thickness, and smooth external transitions—resulting in a refined aesthetic and structural efficiency that traditional manufacturing methods cannot achieve.

Extras

Pair the KSR Dual Arm Cup with our compatible BTA (Between the Arms) system to really up your hydration and aerodynamic setup.

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Technical Specifications

• Cup Length: 135 mm

• Overall Width: 190 mm

• Bolt Spacing (Width Adjustment): 116 mm (Left to Right) to 60 mm (Front to Back)

• Bolt Pattern:

  • 3-position wide bolt pattern each side

  • 15 mm spacing between mounting holes

  • Designed for maximum versatility and compatibility

• Manufacturing Method: 3D printed

• Material: PPA-CF (carbon fiber–reinforced polyphthalamide)

Custom bolt patterns and mounting solutions are available.
If your setup requires a specific interface or spacing, contact us to discuss a custom configuration.