Wunderlich Suspension Electric Spring Preload Adjuster EPA2
Wunderlich Suspension by TracTive EPA2
A compelling upgrade with numerous advantages – or a replacement for the original electric spring preload
Function and product features
- This electric Preload Adjuster EPA2 (spring preload adjuster) serves as
- a high-performance upgrade or
- in the event of a defect or failure, a high-performance replacement
- Good to know: At BMW, this EPA unit is not available separately, but only in combination with the complete shock absorber
- No need for adaptation: the functionality of the standard suspension settings via the handlebar remains fully retained
- Precise preload adjustment ensures optimal riding stability and load distribution, as well as improved balance when riding with a passenger or luggage
- 100% compatible with Wunderlich Suspension by TracTive and original BMW shock absorbers
- Designed to match the original dimensions of the electric preload unit – ensuring compatibility with luggage and accessories without restrictions
- Plug & Play solution without modifications to the wiring harness
- Connection via original connector – full integration into the vehicle and original control unit
- Maximum reliability even under extreme conditions – CNC precision-machined housing for maximum robustness, optimised durability and increased water resistance
- Fully serviceable for long-term use and maintenance
Technical data
- Material
- High-strength aluminium, precision CNC-machined, carefully assembled
- Colour
- Black
Your Wunderlich benefits
- Made in Europe
- 5-year warranty
The system integrates seamlessly into the suspension – without adaptation or compromise
The Wunderlich Suspension by TracTive EPA2 serves as a compelling upgrade or replacement when the original spring preload fails, as BMW does not offer this EPA unit separately, only in combination with the damper. Our system integrates seamlessly into the suspension – without adaptation or compromise. All settings remain intuitively controllable via the handlebar as usual. During riding, this electric preload impresses with stability, balance and optimised load distribution – whether riding solo, with a passenger or fully loaded. The result: a confident, predictable riding experience with a high level of trust.
The Plug & Play integration simplifies installation while preserving the system architecture. Precisely dimensioned, the use of luggage and accessories remains unrestricted. The robust CNC-machined construction ensures reliability even under demanding conditions. High water resistance, durability and serviceability ensure a long service life.
Conclusion: A system for consistently safe, stable and familiar riding – regardless of use or terrain.