JPC4 Roll Cage Design

The JPC4 specification builds on the JPC3 design, introducing further reinforcement to meet the requirements of higher-level motorsport applications.
Designed for track-day use and MSUK competition, this specification provides a strong, competition-ready structure with increased protection and rigidity.

This design meets the structural requirements typically expected for Rallycross vehicles produced after 2006, making it suitable for more demanding motorsport use.

Buyer responsibility:

Suitability for motorsport use depends on event regulations — customers must ensure the selected specification meets the requirements of their specific championship or class.

✅ Design & Layout  

The JPC4 design further develops the structure in line with Appendix K of the MSUK Yearbook:

• X rear or X centre bracing for maximum structural rigidity
• Harness bar included for correct harness mounting
• Double door bars for increased lateral protection
• Centre brace included to strengthen the main structure
• A-pillar supports added for increased front-end rigidity
• Gusseting included to reinforce key load points
• Designed as a full competition-ready cage layout

🧩 JPC4 Specification Overview

🛠 Fitment Compatibility

The JPC4 design can be applied across:

• Bolt-In Competition Cages
• Weld-In Cages

Dash-dodger cages are not available at this specification.

Final configuration may vary depending on vehicle and cage type.

⚠️ Motorsport Use Note

• Designed to meet the requirements expected for Rallycross vehicles (post-2006 models)
• Suitable for higher-level motorsport applications where increased structural strength is required
• Always confirm compliance with your specific championship regulations

🎯 When to Choose JPC4

• Rallycross and higher-level competition builds
• MSUK competition requiring a stronger, more complete cage structure
• Builds needing increased front-end and side impact protection
• Customers stepping up to a serious competition-spec cage

🏆 Why Choose JPC4

• Competition-ready design with increased structural reinforcement
• A-pillar supports improve front-end rigidity and safety
• Double door bars for enhanced side protection
• Fully gusseted structure for strength and durability
• Suitable for demanding motorsport environments

💰 Pricing & Material Options

💳 Booking & Deposit

This listing is for a 50% deposit to secure your build slot.

Remaining balance payable on completion.

Once your order is placed, we will contact you to:

• Confirm vehicle details
• Finalise specification
• Arrange your booking date

Perfect for:
Rallycross and MSUK competition builds requiring a strong, fully reinforced roll cage design.

Choose JPC4 – built for serious competition and high-performance use.