ASP Mountain Bike Seat post
Compact and designed for downhill MTB and dirt jumping, the ASP seatpost combines strength and lightness. Tested and approved by the EFBE for its strength and durability, it weighs only 290g, ideal for downhill mountain bike riders looking for maximum performance.
The ASP seatpost is the perfect choice for pushing your limits with confidence.
Finish your setup with the DBN V2 seatpost clamp, available in 34.9, 38.6 and 39.7mm.
A light, strong rigid seatpost for downhill and dirt jump
The ASP is a rigid alloy MTB seatpost, not a dropper post. It is built for downhill and dirt jump bikes, where the saddle stays low and the post needs to take hard landings without adding weight.
Key specifications
- Weight: 290g
- Diameters: 27.2mm, 30.9mm and 31.6mm
- EFBE Gravity certified for strength and durability
Choosing the right seatpost diameter
Your seatpost must match the inside diameter of your frame's seat tube. Check the size stamped on your current post or listed in your frame specifications, then choose 27.2, 30.9 or 31.6mm.
Why a rigid post?
On downhill and dirt jump bikes the saddle is usually set low and rarely moved, so a dropper adds weight and complexity you do not need. A rigid seatpost keeps the setup simple, light and strong.
Finish the setup
Secure it with the DBN V2 seatpost clamp, available in 34.9, 38.6 and 39.7mm. Size guide: how to measure your frame for a seatpost clamp. The ASP is covered by PEMBREE+.
Frequently asked questions
Is the ASP a dropper post?
No. The ASP is a rigid 290 g seatpost designed for downhill and dirt jump, where the saddle stays low.
Which seatpost clamp goes with it?
The DBN V2 seatpost clamp, available in 34.9, 38.6 and 39.7 mm to match your frame. See our seatpost clamp size guide.
How quickly will my order be dispatched?
Orders are dispatched in 2–4 days from our UK, France or USA warehouse, depending on your region.
Can I return it?
Yes, within 14 days. See our refund policy or contact our support team.
Benefits
✔ Designed specifically for downhill and dirt jumping
✔ EFBE Gravity Certification: guaranteed strength
✔ Ultra light at only 290g
✔ Chosen by Jake Atkinson for Crankworx 2025
Build your PEMBREE bundle
Pair your ASP seatpost with a DBN seat clamp in a matching colour and unlock more savings as you build.
Fit & FAQs
Which diameter do I need?
The ASP seatpost comes in 27.2 mm, 30.9 mm and 31.6 mm. Choose the diameter that matches your frame's seat tube.
How long is it and does it have setback?
It is 300 mm long with 0 mm setback.
What is it designed for?
Downhill and dirt jumping. The ASP seatpost has EFBE Gravity certification for strength.
How much does it weigh?
290 g in 30.9 mm and 291 g in 31.6 mm.
What is it made from?
Forged recyclable aluminium with stainless steel screws.
Pairs well with
ASP Mountain Bike Seat post
Technical specifications
Material: Forged recyclable aluminium
Screws: Stainless Steel
Length: 300mm
Diameters: 27.2mm, 30.9mm, 31.6mm
Setback: 0mm
Weight: 30.9mm = 290g, 31.6mm = 291g