Options: (See descriptions below)
- Rear Upper Arms: Part # (SPL RUA F8X)
- Rear Traction Links: Part # (SPL RTR F8X)
Rear Upper Arms: Part # (SPL RUA F8X)
BMW F8X adjustable Rear Upper Arms (RUA) are an absolute necessity to maintain proper rear camber and reduce tire wear on the street and track. The stock BMW setup has an aggressive camber curve through bump travel, which is very apparent on lowered cars. Excess negative camber causes premature tire wear on the inside edge, and reduced traction on acceleration while too little camber will limit rear grip while cornering. Our Rear Upper Arms provide a wide adjustment range for precise rear camber alignment that is easily optimized for street or track driving while eliminating bushing deflection with smooth articulating Teflon lined rod ends in place of the soft factory rubber bushings. Our kit replaces the factory links commonly referred to as the rear wishbone and rear guide links.
BMW F8X Rear Upper Arms are gun drilled 2024 Aluminum links to reduce weight, then are Black Anodized to prevent corrosion and provide a durable finish. Our exclusive 360 degree 6061-T6 Aluminum Rotating Clamp design allows for quick, precise adjustment. Our Clamps tightened down with Blue Anodized Titanium Socket Head Cap Screws gives easy access to adjust camber settings, shaving off even more unsprung weight without compromising strength. Our Rear Upper Links provide superior performance, durability, and ease of adjustment. Long gone are the days of fumbling with wrenches to tighten jam nuts while trying to trying to keep your bearings oriented correctly.
FK Spherical Bearings and Rod Ends are manufactured in Connecticut and utilize a Teflon liner to provide quiet operation, lower friction, smooth articulation, and eliminates bushing deflection under load. The liner is also self-lubricating and self-cleaning, offering robust reliability for street and track use. The PTFE liner is chemically bonded to the inner diameter of the race, and offers a very high load carrying capacity that has greatly increased dynamic wear characteristics. The operating temperature of the liner ranges from -65º to 325ºF, offering robust reliability.
- Sold as a complete kit for one car (4 total arms).
- Black Anodized and gun drilled 2024 Aluminum Links
- 6061-T6 Aluminum Rotating Clamps allow for a wider range of adjustment
- Titanium Socket Head Cap Screws
- Tapered Stainless Steel Knuckle Mount Spacers
- Low Friction 3 Piece Teflon Lined FK Rod Ends
Rear Traction Links: Part # (SPL RTR F8X)
BMW F8X Rear Traction Links (RTR) increase stability and response by eliminating bushing deflection under hard acceleration and braking and help to reduce wheel hop on hard launches. Our length adjustable links allow fine tuning of rear bumpsteer and anti squat characteristics. These arms are designed for use in high performance street and race vehicles.
Black Anodized and gun drilled 2024 Aluminum links along with our 360 degree Rotating Clamp design allow for quick and precise adjustment. Blue Anodized Titanium Socket Head Cap Screws shaves even more unsprung weight without compromising strength.
FK Bearings rod ends manufactured in Connecticut feature a Teflon liner to provide quiet operation, low friction, smooth articulation, and eliminates bushing deflection under load. The PTFE liner is chemically bonded to the inner diameter of the race. The liner offers a very high load carrying capacity and has greatly increased dynamic wear characteristics. The operating temperatures of the liner ranges from -65º to 325ºF, offering robust reliability for both street and track use.
- Gun drilled 2024 Aluminum Links to reduce unsprung weight
- Blue Anodized Titanium Socket Head Cap Screws
- 6061-T6 Aluminum Rotating Clamp design
- Low friction 3 piece Teflon lined FK Heim joints/Rod Ends