42'405 Bikes & E-bikes
buy & sell

Product Description

Ergotec PM-705N – Comfort on Any Surface You want more comfort on your bike—without compromising stability and control? Then the ergotec PM-705N is the perfect suspension seat post for you! With its sophisticated parallelogram system and a travel of 27 mm, it provides smooth cushioning over every pothole, curb, and cobblestone. The PM-705N is robust, lightweight, suitable for everyday use and touring—and noticeably elevates your riding comfort! Your Benefits at a Glance
  • Parallelogram Suspension System for particularly sensitive, uniform damping
  • Rebound Suspension for smooth return without bouncing
  • Low Breakaway Torque – reacts quickly and softly
  • Optimized for Rider Weights of 70–90 kg (other springs available optionally)
  • Safety Level 5 – suitable for city, trekking, travel, and cargo e-bikes up to 25 km/h or 45 km/h (with a maximum total weight of 120 kg)
  • High-Quality AL 7075 T6 Aluminum – lightweight, stable, durable
  • 30–60 mm Offset – for an optimized seating position
  • Compatible with Seat Tube Angles > 70° and standard saddle rails (7 mm) – common sizes for most bikes
  • Modern Design with sandblasted surface in black
Technical Details
  • Material: Aluminum AL 7075 T6
  • Diameter: 27.2 mm / 30.9 mm / 31.6 mm
  • Length: 350 mm
  • Installation Height: 111 mm
  • Offset: 30–60 mm
  • Spring System: Rebound
  • Travel: 27 mm
  • Rider Weight: 70–90 kg
  • Weight: approx. 590 g (27.2 mm) / 610 g (30.9 mm) / 630 g (31.6 mm)
  • Surface: black sandblasted
  • Rail Diameter: 7 mm
  • Safety Level: 5
More Riding Comfort – More Control – More Fun The PM-705N is not just any suspension seat post—it is your upgrade for noticeably more riding comfort while maintaining sporty handling. Whether you’re touring with a trekking bike, navigating city traffic, or rolling over uneven paths with a cargo e-bike, this seat post will get you smoothly and safely to your destination. With the proven parallelogram system and adjustable offset, you can optimize your seating position—without sacrificing stability or efficiency. Contents
  • 1x Ergotec PM-705N Suspension Seat Post

❓ Frequently Asked Questions (FAQ) 1. Can I install the seat post myself?
Yes, installation is straightforward if you have some handy skills. You can find all the information in the installation manual.
Tip: Ensure a clean and lubricated clamp connection during installation to avoid cracking noises.
WARNING – Special conditions and prerequisites apply for installation on an S-Pedelec. We strongly recommend having the conversion to a fast e-bike done by a professional workshop! 2. Is the post suitable for e-bikes?
Yes, the PM-705N has Safety Level 5 and is approved for e-bikes up to 25 km/h as well as for fast e-bikes up to 45 km/h (with a maximum total weight of 120 kg) for city, trekking, travel, and cargo use. 3. Can I also use it for a fast e-bike (S-Pedelec)?
Yes, Safety Level 5 is approved for S-Pedelecs (up to 45 km/h), but only up to a maximum total weight of 120 kg. However, due to the significant load, we recommend choosing a seat post with Safety Level 6 or 6+ from Ergotec. 4. Are there springs for other rider weights?
Yes, Ergotec offers suitable replacement springs for other weight classes. Feel free to contact us if you need a different tune. 5. Does the seat post fit my bike?
The PM-705N is suitable for seat tube angles greater than 70° and saddle rails with a diameter of 7 mm, which applies to most bikes. Just select the appropriate tube diameter (27.2 / 30.9 / 31.6 mm).

Characteristics

  • Original new priceCHF 119.90 / You save CHF 40.-


About Seller

CHF 79.90CHF 119.90You save CHF 40.-
Bike shop

Can we help you?

Florian
FlorianExpert TCS velocorner.ch
Contact us now
    Buy Ergotec Seat Post PM-705N with Suspension, 30.9mm Diameter, 350mm Length, 30-60mm Offset, LEVEL 5 New online