9.3 average score from 30 reviews


Model number: BSP-42
  • This seatpost reduces vibrations and absorbs shocks
  • Extra long seatpost (400mm)
  • Comes with extra elastomers to optimize the suspension for the rider's weight
  • Suited for all types of bikes
  • Certified for use on E-bike (EN-15194)
More information

ActionPost seatpost

Shock absorption and reduction of vibration can have a great impact on reducing strain and uncomfortness on the bike. The ActionPost seatpost reduces these shocks and vibrations massively due to its special elastomer suspension system. This suspension can be adjusted to the rider's weight to make sure the ActionPost seatpost is comfortable for everybody. Ideal for long tour rides.


  • Sizes 27.2mm (458.3g), 30.9mm (443.2g), 31.6mm (461.2g)
  • Width (mm) 60
  • Length (mm) 420


  • Length Seatpost (mm) 400
  • Offset (mm) 20
  • Clamp mechanism Single bolt
  • Carbon rails compatible No
  • Seatpost suspension Yes
  • Suspension Travel (mm) 20
  • Seatpost type Suspension
  • Certified for E-Bike (EN 15194), MTB (EN 14766 / ISO 4210), Road (EN 14781 / ISO 4210), Touring (EN 14764 / ISO 4210)
  • Minimum insert length (mm) 100


The seatpost offset refers to the distance between the centerline of the seatpost and the centerline of the saddle rail clamp. A zero offset aligns the clamp with the seatpost, while a 15mm offset positions the center of the saddle rail clamp 15mm behind the center of the seatpost. The offset affects the saddle position and influences saddle position and rider comfort on the bike.

E-bike ready

E-bike ready

Products suitable for use on a wide range of bicycles, including E-bikes. Ensuring durability even at higher speeds and with heavier bikes. They meet the NEN-EN 15194:2017 standard for electric bicycles, covering safety aspects and hazard prevention. This e-bike-ready label guarantees your gear can handle the demands of (electric) cycling, providing peace of mind when you hit the road on your e-bike.