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For over 20 years, Thudbuster has been the bicycle industry standard in suspension seatposts by providing unequaled comfort and reliability to riders around the world.
Thudbuster ST Seatposts are back in stock! Get one while they last!
The latest generation Thudbuster ST is superior to its predecessor in every way. Building on Thudbuster’s proven parallel linkage technology we have completely re-designed the seatpost for increased durability, a higher rider weight limit, and additional suspension travel, as well as ease of use through tool-free elastomer change and a single-bolt seat clamp design.
By improving on this already legendary design, we’re confident to say that the newest generation Thudbuster is the most advanced suspension seatpost ever made.
Designed specifically with the rigors of e-bikes and daily commuting in mind, the latest generation Thudbuster ST includes 50mm of travel to significantly diminish shocks and impacts from broken pavement, cobblestones or any other mixed surfaces.
Thudbuster ST is now able to support riders up to 330lbs (150kg) and incorporates a tool-free, interchangeable elastomer system to quickly and easily adjust the seat post for a variety of rider weights.
The Thudbuster Parallel Linkage technology stays in the direct path of the natural travel of the rear wheel. As a bump lifts the back of a bicycle, the rear wheel pushes up and forward into the rider. The Thudbuster works by compressing along the exact opposite path — down and rearward — absorbing force at the same rate. This results in a natural suspension feel without being overly active, and allows for more travel without compromising pedaling position.
| Setback | 0mm (unweighted) |
|---|---|
| Post | Forged aluminum |
| Seat Clamp | Single bolt fastening and angle adjustment design |
| Pivots | Threaded, serviceable, hard anodized aluminum axles flanged PTFE bushings |
| Elastomer | Medium firm elastomer pre-installed from the factory. Soft and Firm elastomers included. Extra Soft and Extra Firm elastomers sold separately |
| Travel | 50mm / 1.97in |
| Length | 27.2 – 345mm. 30.9 + 31.6 – 375mm |
| Weight | 580 grams (31.6) |
| Max Rider Weight | 330lbs / 150kg |
| Extension | Minimum – 100mm / Maximum – 274 |
| Diameter (Direct Fit) | 27.2, 30.9, 31.6 |
We have a maximum rider weight of 250lbs for the Thudbuster LT so the ST "short travel" option would be best for you. You will need the Extra Firm elastomer as well for the most comfortable performance. This is part number: AAE0270-80
Since the Stoker's seatpost does not have to include a stoker stem, you can use any of our seat posts as long as the maximum and minimum insertion suit your needed saddle height. Many riders choose the Thudbuster ST but we have suspension seatposts that offer compliance from 20mm (eeSilk), 35mm (eeSilk+), 50mm (Thudbuster ST), and 75mm (Thudbuster LT).
The Thudbuster seatposts are designed to work with rounded rail saddles. We have not tried them with these saddles you have mentioned but I see them used on other seatposts using a traditional clamp so I do not see why they wouldnt. We have not tested to be 100% sure but it appears they would fit.
The maximum extension of the Thudbuster ST is 274mm for the 30.9mm & 31.6mm sizes and 244mm (27.2mm).
the question is not answered. minimum distance from seat post to seat rail mount. in other words if the seat post is at its lowest level what is the distance to the seat mounting rails. again how much height does this add to a seat on the bike.
The measurement you are referring to is called the ""maximum insertion"" which is the maximum the seat post can be inserted in the bicycle and still allow the suspension head to work. The measurement from the saddle clamp to the base of the suspension head aka ""maximum insertion"" is 101mm for the Thudbuster ST. If this still does not answer your question, please give us a call or send an email to support@canecreek.com and we can better help you.
4 inches minimum
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Verified Ownerinstalled on my touring bike -- definitely improves the ride on bad roads!
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Verified OwnerThis seat post was worth every penny. Almost as good as rear suspension. Added a lot of comfort.
Verified review - view original
Verified Owner
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