R1B Carbon Rear Suspension Arms
These arms are manufactured from a high-performance carbon composite material, providing a lightweight upgrade with increased rigidity and reduced flex. The increased stiffness translates to sharper handling and improved consistency by helping maintain suspension geometry under load.
Key Features and Specifications:
- Manufactured using premium TORAYCA® carbon fiber material
- Increased rigidity compared to standard glass fiber nylon arms
- Reduced flex under high loads for improved handling precision and response
- Lightweight
- Direct bolt-on replacement for standard parts
-
Natural Color: Our injection-molded carbon nylon parts retain their natural material color, with no added pigments or colorants to achieve a gray appearance. This approach avoids unnecessary additives that may affect the material’s mechanical properties, allowing us to prioritize the inherent strength, durability, and performance of the base material.
Includes:
- x1 Left rear suspension arm, carbon
- x1 Right rear suspension arm, carbon
- x2 Arms spacer, carbon
Assembly Note:
For screws installed directly into carbon-reinforced nylon, apply a light coat of grease to the screw threads before installation.
When using optional titanium lower shock mounts, pre-thread the arm mounting holes using a steel screw with grease.
TORAYCA® and all associated trademarks and logos are trademarks or registered trademarks of Toray Industries, Inc. These trademarks are used solely for descriptive purposes. This product is not endorsed, certified, or sponsored by Toray Industries, Inc.

R1B Carbon Rear Suspension Arms
These arms are manufactured from a high-performance carbon composite material, providing a lightweight upgrade with increased rigidity and reduced flex. The increased stiffness translates to sharper handling and improved consistency by helping maintain suspension geometry under load.
Key Features and Specifications:
- Manufactured using premium TORAYCA® carbon fiber material
- Increased rigidity compared to standard glass fiber nylon arms
- Reduced flex under high loads for improved handling precision and response
- Lightweight
- Direct bolt-on replacement for standard parts
-
Natural Color: Our injection-molded carbon nylon parts retain their natural material color, with no added pigments or colorants to achieve a gray appearance. This approach avoids unnecessary additives that may affect the material’s mechanical properties, allowing us to prioritize the inherent strength, durability, and performance of the base material.
Includes:
- x1 Left rear suspension arm, carbon
- x1 Right rear suspension arm, carbon
- x2 Arms spacer, carbon
Assembly Note:
For screws installed directly into carbon-reinforced nylon, apply a light coat of grease to the screw threads before installation.
When using optional titanium lower shock mounts, pre-thread the arm mounting holes using a steel screw with grease.
TORAYCA® and all associated trademarks and logos are trademarks or registered trademarks of Toray Industries, Inc. These trademarks are used solely for descriptive purposes. This product is not endorsed, certified, or sponsored by Toray Industries, Inc.
