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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 115kg/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 Seatposts are back in stock! Get one while they last!

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.

THUDBUSTER ST

ebike ready logo

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)

Q & A

Does the Thudbuster ST work with saddles that have oval carbon rails, i.e. Reform 'The Seymour' saddle? sputnikkoll asked on May 28, 2023

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.

Ben Rea answered on May 31, 2023 store manager
(0) (0)
How much distance is required from seat rails to bike frame seatpost mount? Daniel Lacasse asked on April 18, 2023

The maximum extension of the Thudbuster ST is 274mm for the 30.9mm & 31.6mm sizes and 244mm (27.2mm).

Ben Rea answered on May 8, 2023 store manager
(0) (2)

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Technical Documents

Related Reviews

Gary B.
Gary B.ca
Verified OwnerVerified Owner
4/5

Haven’t had a chance to ride much yet with the Thudbuster but it seems to work as advertised. I have ordered a new Brooks saddle and think it will be a good combination.

Verified reviewVerified review - view original

1 week ago
Tom Woodworth
Tom Woodworthus
Verified OwnerVerified Owner
5/5

good

Verified reviewVerified review - view original

1 week ago
Anonymous
Anonymous
Verified OwnerVerified Owner
1/5

Not very good at absorbing bumps. Tried 4 different inserts. All felt hard. I could feel each bump up my spine. The seat clamp is a joke. Even the redesigned replacement one still stinks. It's supposed to fit 7-9 mm rails, I had to buy a longer screw to mount 8 mm rails. Sold it and bought a more comfortable seat post. Cost less too.

Verified reviewVerified review - view original

2 months ago

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Reed Mann

Design Engineer
Name: Reed Mann
Position: Design Engineer
Year started: 2022
Best part of being a part of the Cane Creek family:  It’s very refreshing to work for a small, tight-knit company where we all share the same passions and to develop new products that make cycling better for everyone.
What you’ll find me doing on the weekends: Obviously riding bikes, but also wrenching on bikes or cars, exploring the mountains, and watching F1 races.
How I got here (at Cane Creek): Feeling pretty unfulfilled with a corporate engineering job, I happened to see that Cane Creek was hiring. I jumped at the opportunity to get my hands dirty working on the latest bike tech and was fortunate enough to be offered the position.