Tractive Electronic Preload Adjusters - Body Mounted Type

Electronic Preload Adjuster 2 (EPA2)

EPA2 electronic preload adjusters let you change rear spring preload on the move, ideal when loading changes between solo, pillion or luggage. They plug straight into BMW's ESA system and replace a traditional castellated spring nut on compatible shock bodies.

On-the-fly preload adjustment for ESA-equipped bikes

• Compensate for varying rider and luggage weight for safer, more comfortable handling
• Eliminate awkward roadside adjustments with preload wrenches — adjust from the cockpit
• Direct fit EPA assemblies for TracTive aftermarket shock absorber bodies
• Generation 2 single-unit design combines actuator and spring seat where space permits

Recommended Pairings

Consider setup references and tools: Offroad Setup Guide, Road Setup Guide and preload wrenches. View EPA product assemblies: EPA assemblies.

Shop Electronic Preload Adjuster 2 (EPA2)

Browse EPA2 options and fitments to suit your TracTive shock and BMW ESA setup.