Upgrade your bike for smoother rides with the 30.9mm Suspension Seat Post Combo. Designed for cyclists in New Zealand, this combination fits a wide range of bikes, making it ideal for commuting, gravel riding, and recreational cycling. The suspension post reduces shock from uneven terrain, while the shim adaptor ensures a secure fit in larger seat tube frames.
Key Features
- Compatible with 27.2 mm seat tube diameter (shim adapts to 30.9 mm)
- 42 mm suspension travel for comfort over bumps and rough roads
- Adjustable spring tension via hex bolt for customised ride feel
- Lightweight aerospace-grade 6061 aluminium alloy construction
- Shim adaptor made from strong, corrosion-resistant alloy
- Easy installation – swap out your current post in minutes
- Supports rider weights from 50 to 110 kg
Specifications – Suspension Seat Post
- Post diameter: 27.2 mm
- Saddle mount diameter: 22 mm
- Shock travel: 42 mm
- Length: 350 mm
- Minimum insertion: 100 mm
- Maximum insertion: 260 mm
- Material: 6061 aluminium alloy
- Weight: 388 g ± 5%
- Model: PENGBO-272-350
- Damping method: Coil spring
Specifications – Shim Adaptor
- Material: Alloy
- Length: 59 mm
- Weight: 25 g
- Size: 27.2 mm to 30.9 mm
Benefits
- Absorbs shocks from uneven surfaces for a smoother ride
- Customisable spring tension for comfort or performance
- Lightweight materials minimise added bike weight
- Durable, weather-resistant build for all-season use
- Adaptable fit with included 27.2–30.9mm shim
How to Adjust the Spring Tension
Use the hex bolt at the bottom of the post to adjust the spring tension. A torque wrench is recommended to ensure correct tightness. Over-tightening or under-tightening can affect performance and safety. Always follow manufacturer guidelines.
Common Questions
- Q: Will this fit my bike?
A: Yes, it fits 27.2 mm frames and 30.9 mm frames with the included shim.
- Q: Can I use this for mountain biking?
A: Yes, it’s suitable for a variety of riding styles, including light trail use.
- Q: How do I maintain it?
A: Periodically check tension settings and clean the post to prevent dirt build-up.
Summary
This 30.9mm Suspension Seat Post Combo delivers enhanced comfort, adaptability, and durability. Whether you ride city streets, country roads, or light trails, it helps reduce fatigue and increase riding enjoyment in New Zealand conditions.
How to Check if This Suspension Seat Post Tube Will Fit Your Bike
To make sure the Adsports ASSP272-300 Suspension Seat Post Tube is right for your bike, you’ll need to check the fit with both your bike frame and your existing saddle clamp.
1. Confirm Seat Tube Internal Diameter
- Remove your current seat post from the bike frame.
- Look for a size marking engraved near the base of the post — if it says “27.2 mm or 30.9mm,” this post will fit directly.
- If there’s no marking, measure the outside diameter of your existing post with a vernier caliper. It must measure exactly 27.2 mm or 30.9mm.
2. Check Your Saddle Clamp Type
- This seat post tube does not include a rail clamp — it is designed to be used with a separate, compatible clamp.
- Ensure your current saddle clamp fits a 22 mm clamp area diameter and is designed for standard saddle rails (7 mm round rails are most common).
- If you don’t have a clamp or yours isn’t compatible, you’ll need to purchase a separate one before installation.
3. Insertion Depth Requirements
- Your bike frame must allow for at least 100 mm of the post to be inserted for safe riding.
- Do not insert more than the 260 mm maximum to preserve suspension travel and prevent frame damage.
4. Rider Weight Range
- Optimised for cyclists weighing between 50–100 kg.
- Provides best performance across NZ’s varied urban, gravel, and light trail conditions.
