Not sure if your existing seat post tube will fit our bike seats?
If you’re upgrading for comfort and reliability, this wide bicycle seat tube set from Adsports delivers the ideal balance of plush cushioning and solid frame fit. It combines the Adsports Extra Wide Bike Seat with a 27.2 mm aluminium seat post, giving you a perfectly matched system for smoother, more comfortable rides on any terrain.
Not Sure If It Fits?
Simply remove your current seat post, measure its height and diameter—if it’s 27.2 mm, this set is the one for you. The Adsports Sure-Fit Set takes out all the guesswork by pairing a precision-fit tube with a comfort saddle that installs in minutes.
Why Choose This Seat & Tube Combo
This comfort upgrade helps eliminate saddle soreness and frame vibration. The wide ergonomic seat supports your sit bones evenly, while dual coil springs absorb road shock. The 27.2 mm seat tube provides a lightweight, secure base that fits many road, hybrid, and mountain bikes used throughout New Zealand.
Key Features
- Ultimate Comfort: High-density punched foam padding and a broad seat profile keep rides pain-free.
- Shock Absorption: Dual rear coil springs reduce impact from bumps and uneven paths.
- Breathable Ventilation: Central airflow channel prevents heat and moisture build-up during long rides.
- Precision-Fit Tube: 27.2 mm diameter, 350 mm length, and 78 mm minimum insertion for secure installation.
- Durable Alloy Build: Aluminium (AL6061-T6) construction with corrosion-resistant matte black finish.
- Easy Fitment: Compatible with direct-mount (≤ 24 mm plain tube) or rail-mount (51 mm spacing) systems.
Specifications
- Brand: Adsports
- Model: BS4071 + SP272
- Saddle Dimensions: Approx. 24 cm × 20 cm × 7.5 cm
- Seat Tube Diameter: 27.2 mm
- Seat Tube Length: 350 mm
- Minimum Insertion: 78 mm
- Seat Mount Diameter: 22 mm
- Rail Width: 51 mm (outside-to-outside)
- Weight: Approx. 630 g (saddle only)
- Compatible Bikes: Road, MTB, hybrid, city and kids’ bikes
Benefits
- Eliminates pressure points and improves posture for longer, pain-free rides.
- Dual springs cushion impacts for smoother performance on NZ roads and trails.
- Lightweight 27.2 mm alloy post keeps your bike stable and responsive.
- Quick installation with either direct-mount or rail-mount compatibility.
- Guaranteed fit and comfort with the Adsports Sure-Fit pairing.
How to Set Saddle Height
Sit with your heel on the pedal at its lowest point—your leg should have a gentle bend (25–30°). Always insert the post beyond the 78 mm minimum insertion mark to protect your frame. Start level and adjust tilt slightly forward if needed for comfort.
Questions & Answers
- Q: Will this seat fit my bike?
A: Yes – fits most standard 27.2 mm seat tubes used on road, MTB and hybrid bikes. Check the marking on your existing post for confirmation.
- Q: Can I install this myself?
A: Absolutely – only two spanners needed. Slide the post in, tighten to the correct height, and you’re ready to ride.
- Q: What’s the difference between 27.2 mm and 30.8 mm versions?
A: 27.2 mm fits narrower frames, common on lightweight bikes. 30.8 mm suits larger or stronger frames. Both share the same comfort seat and spring design.
Summary
The wide bicycle seat tube set provides an instant comfort and stability upgrade for your bike. With its cushioned extra-wide saddle, dual coil springs, and strong 27.2 mm aluminium seat post, it ensures a secure fit, smooth rides, and lasting support for everyday commuting or long weekend rides across New Zealand.
