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Most Versatile

Thudbuster ST

Shock Absorbing Seatpost - $199.99



Bolt-On Comfort

  • Comfortable Suspension: 50mm of Travel (1.97in) for exceptional shock absorbing while cycling.
  • Reduce Riding Pain & Increase Comfort: Absorb bumps, dips, and drops. This will soften your ride and make biking more comfortable and enjoyable so you can ride longer.
  • High Quality & Durable: This suspension seatpost is completely redesigned from the previous model for increased durability and additional suspension travel.
  • No Shop Tools Needed: Tool-free elastomer change and a single-bolt seat clamp design for easy seatpost adjustments.
  • Works with Many Different Bike Types: This seatpost can be used on road bikes, gravel bikes, e-bikes (electric), commuter bikes, and adventure bikes for maximum comfort and performance.
  • Wide Range of Rider Weight: Weight limit of riders up to 150kg/330lbs.
  • Patented Parallel-Linkage Technology: 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.
  • Tuning Customization: Tunable to match your weight and riding preference with a range of elastomer spring rates available.

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

Suspension Seatpost

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.

Cane Creek Thudbuster ST Installed on a

Better Than Ever

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.

Cane Creek Thudbuster ST suspension seatpost

Accessibility

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.

Parallel Linkage Design

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.

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Additional information

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
(additional diameters available with seatpost adapter)

Reviews

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Q & A

Hello, are there any maintenance instructions or how should the seatpost be maintained? Frank asked on May 9, 2024

Hello, you can clean(soap/water) and add safe lube (plastic/polymer) on the bushings/elastomer, as needed.

Andy Bennett answered on May 9, 2024 store manager
(0) (0)
can this seatpost be added to a dropper post Jay asked on April 8, 2024

Hello, thanks for reaching out, however, no, out seat post cannot be added to a dropper seat post. Sorry.

Andy Bennett answered on April 8, 2024 store manager
(0) (0)
Is it possible to use the Thudbuster ST backwards so that I have more forward saddle position. My bike requires a forward saddle position (saddle sits forward of the center 2 cm ahead) Ray asked on February 20, 2024

Hello, our Thidbuster seat post is not designed to be run backwards as the seat post will not preform as it should when install backwards.

Andy Bennett answered on February 21, 2024 store manager
(1) (0)
Will you ever bring back a XL version like there was available for the Gen3? The current maximum extension of 244mm is way too little for tall folks on a mtb with a 27.2 seatpost.. Tim asked on December 20, 2023

There is no plan to introduce an extra long version of the Thudbuster ST. The Thudbuster LT does offer a much taller saddle height though, with a maximum extension of 290mm. That is always our recommendation for riders in your situation. The additional comfort of the longer travel seatpost is noticable as well!

Will Hart answered on January 3, 2024 store manager
(0) (0)
Why does my saddle keeps rotating around even though I've opened the system, greased, refitted and tightened it with a torque wrench ? Is it because of the rail width ? I find this issue very inconfortable since I like riding my bike leaning back on the saddle, not holding the handlebar. This forces me to stay on the handlebar and tighten my thighs to keep the saddle straight, thus greatly reducing the added benefit of a suspended seatpost. Aubry Moret asked on November 29, 2023

Sorry for the trouble! We have a revised clamp design that solves this issue - and we are happy to replace it for you under warranty! Please contact support@canecreek.com to arrange for your replacement clamp to be sent!

Ben Rea answered on December 1, 2023 store manager
(0) (0)

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Technical Documents

Related Reviews

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3.9
Based on 30 reviews
Kim S.
Kim S.us
Verified OwnerVerified Owner
5/5

Should have bought them 10 years ago! Absorbs 50% of the bumps.

Verified reviewVerified review - view original

2 months ago
Matthew
Matthewus
Verified OwnerVerified Owner
5/5

Went on a 33 mile ride to test the Thudbuster for the first time. At first, I didn't notice anything and just thought about it from time to time as the ride went on. Then it hit me....I wasn't noticing anything, because it was working. Such a smooth and bump free experience. Worth every penny. I added this to my Specialized Turbo Vado 3.0 IGH.

Verified reviewVerified review - view original

2 months ago
Clifton
Cliftonus
Verified OwnerVerified Owner
5/5

I have a Trek Dual Sport 4, no rear suspension. I enjoy riding easy/intermediate trail, gravel, and pavement. A lower back injury restricted me to only pavement, so I was considering replacing it with a full suspension mtn bike when a friend suggested a Thudbuster (funny mtn bike salesman didn’t mention as option). Gave it a try. Shazam, back riding trails with a smile.

Verified reviewVerified review - view original

3 months ago

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