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Max Comfort

Thudbuster LT

2 reviews|5 answered questions

The Ultimate Suspension Seatpost - $199.99



The Thudbuster G4 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 and additional suspension travel, as well as ease of use through tool-free elastomer change and a single-bolt seat clamp design.

  • Maximum suspension: 90mm of travel (3.54in) for maximum shock absorption while cycling.
  • Reduce riding pain & increase comfort: Absorb bumps, dips, and drops. Soften your ride and make biking more comfortable and enjoyable so you can ride longer.
  • High quality & durable: 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.

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.

For any questions, contact us through our Support Center.

Thudbuster LT

SUSPENSION SEATPOST

The latest generation Thudbuster LT 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, 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.

Thubuster LT

90mm / 3.5in of Travel

Thudbuster LT

Tool Free Elastomer Change

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

5mm (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. Extra Soft, Soft, Firm, and Extra Firm elastomers sold separately

Travel

90mm / 3.54in

Length

27.2 – 390mm.  30.9 + 31.6 – 420mm

Weight

750 grams (31.6)

Max Rider Weight

250lbs / 113kg

Extension

Minimum – 146mm

Maximum – 290mm for 27.2, 320mm for 30.9 +31.6

Diameter (Direct Fit)

27.2, 30.9, 31.6

(additional diameters available with seatpost adapter)

2 reviews for Thudbuster LT

4.0
Based on 2 reviews
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1-2 of 2 reviews
  1. [this was written on Jan. 22, ’24] I’m a road rider, gravel rider, mtn rider, fatbiker, … and have been for a number of decades now. This is to say, I am beginning to appreciate any additional comfort based items (not sheepskin seat covers, but truly performance and functionality melded together into great durable products). The Thudbuster LT is one such item (i.e., the G4 version, the latest version). My household has 10 bikes. There are now 6 Cane Creek posts on those bikes:
    gravel bikes: 2 x eesilk+ (carbon)
    back-up road / light gravel: 1 x eesilk
    mtn (hardtail): 1 x Thudbuster LT (G4)
    fatbikes: 2 x Thudbuster LT (G4)

    The single post I wish had more ‘squishy-comfort’ would be the road bike’s eesilk (so I just ordered a softer rubber bumper). A suggestion for a road rider looking for some additional comfort would be the eesilk+ (gravel) post as it delivers in that category.

    The other bikes are now better bikes because of these posts. The more squish, the better (it seems). My fatbikes are the latest to be adorned with such squishy goodness. I did go to softer bumpers than is recommended, that may just be me but I read it’s very common. My fatbiking is only done in the winter in Ontario (Canada) when the temperatures are well below freezing (i.e., -10C, approx. 14F). While it’s true that running 5 inch tires with 5 psi provides significant ‘squish’, … that addition of the Thudbuster LT is everything to make the ride more comfortable and non-punishing (except in your muscles, depending on your effort).

    These posts do not look ‘stupid’, they look great. They are also easy enough to swap in different bumpers is so desired. I’m also running the neoprene overboot for the Thudbuster LTs I’m running. They may or may not be worthwhile but I’m willing to buy and install the overboots to protect my equipment. The overboots also have a big strip of reflective tape on the back and that will certainly keep your friends from losing you in the forest in the dark winter while you’re out fatbiking in the late evening.

    One suggestion I have though is for sizing. Given the transferability of the post to other bikes I suggest buying the 27.2mm size and using a shim for larger seat-tubes. This allows the post to be swapped out when it’s time to sell the 31.6mm seat-tubed fatbike (or what-have-you). The reason for this is to allow you to keep the post and use it on different bikes in your stable. I’m currently running two 27.2mm Thudbuster LT seatposts with shims and both are as ‘good / sturdy / noise-free’ as the others. Shims are cheap, the LT itself is not.
    Cheers.

    (1) (0)
  2. I just installed this and rode it a little so far.
    Unlike many reviewers online, I had no problems with the installation. I believe their issues are due to user error. Seems to be a great design.
    But I think it is a bad marketing decision by Cane Creek to insist on shipping these with no choice for elastomer.
    It is not just rider weight that factors in here, but maybe more importantly the type of riding.
    E-bikers hitting potholes is a very different issue from a mountain biker on real mountain bike trails, even if they weigh the same.
    Forcing me to go through the swap procedure, expense, and hassle, followed by never having a need for my Medium elastomer, puts a needlessly bad end to the purchase and install experience for me.

    (8) (1)
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Q & A

Are your seat suitable for cargo bikes give that cargo bikes often get lift from the seat? Nigel asked on February 20, 2024

Hello, our Thudbuster seat post can be used on cargo bikes that offer a 27.2, 30.9 and 31.6mm seat tube.

Andy Bennett answered on February 20, 2024 store manager
(0) (0)
Why don't you allow customers to order the correct elastomer that they need when they order their Thudbuster oe eeSilk, rather than having it be an additional purchase for those who aren't in the "medium" weight category? Kathy Benton asked on December 15, 2023

Kathy, you bring up a great point. The answer is largely to do with logistics, and website capability at this time - but we would be happy to supply the elastomer that you need at no charge if you're thinking of ordering a seatpost. Please reach out to our rider support team directly at support@canecreek.com or by calling 828-641-9560 and we'll get you set up!

Will Hart answered on December 18, 2023 store manager
(1) (0)
do you have to order the elastomer separately from the post? does the post come in different lengths? Sue asked on October 23, 2023

Yes... the Medium/Firm elastomer comes installed in the seatpost. Other elatomers are sold separately. The 27.2mm seatpost is 390mm long and the 30.9mm and 31.6mm seatposts are 420mm long.

Ben Rea answered on October 25, 2023 store manager
(0) (0)
What’s the difference between this and eeSilk seat post? Vince asked on August 27, 2023

Many things but primarily the amount of travel (suspension) offered... eeSilk offers 20mm while Thudbuster LT offers 90mm. You can compare the specifications of each seatpost on our website: https://canecreek.com/seatposts-category/

Ben Rea answered on August 28, 2023 store manager
(0) (0)
Recommendations for paved surface, 74 year rider @ 226 Lbs Daniel Lacasse asked on April 17, 2023

250 lbs max for the Thudbuster LT and elastomer choice is based on rider weight and rider preference. For riders who are closer to the threshold of 250 lbs we recommend running a firmer elastomer.

Jenna Toney answered on May 8, 2023 store manager

At 226lbs on the Thudbuster LT you would have the best performance on either the ""X Firm"" or ""Firm"" elastomer. For riding on smoother surfaces you may find the ""X-Firm"" to be prefferable. You can find these on our website and the part numbers are below.

X-Firm Elastomer - AAE0299-81
Firm Elastomer - AAE0299-75

Ben Rea answered on May 18, 2023 store manager
(0) (0)

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Related Reviews

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4.6
Based on 24 reviews
Image #1 from Victor J Liss JrImage #2 from Victor J Liss Jr
2
Victor J Liss Jr
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5/5

So far so good, only wish I discovered Thudbuster 3600 miles ago! An urban cyclist, Seattle’s poorly maintained streets require this “spine-saver!”

Verified reviewVerified review - view original

2 weeks ago
Jeff Psiuk
Jeff Psiuk
Reviewer
5/5

[this was written on Jan. 22, '24] I'm a road rider, gravel rider, mtn rider, fatbiker, ... and have been for a number of decades now. This is to say, I am beginning to appreciate any additional comfort based items (not sheepskin seat covers, but truly performance and functionality melded together into great durable products). The Thudbuster LT is one such item (i.e., the G4 version, the latest version). My household has 10 bikes. There are now 6 Cane Creek posts on those bikes:
gravel bikes: 2 x eesilk+ (carbon)
back-up road / light gravel: 1 x eesilk
mtn (hardtail): 1 x Thudbuster LT (G4)
fatbikes: 2 x Thudbuster LT (G4)

The single post I wish had more 'squishy-comfort' would be the road bike's eesilk (so I just ordered a softer rubber bumper). A suggestion for a road rider looking for some additional comfort would be the eesilk+ (gravel) post as it delivers in that category.

The other bikes are now better bikes because of these posts. The more squish, the better (it seems). My fatbikes are the latest to be adorned with such squishy goodness. I did go to softer bumpers than is recommended, that may just be me but I read it's very common. My fatbiking is only done in the winter in Ontario (Canada) when the temperatures are well below freezing (i.e., -10C, approx. 14F). While it's true that running 5 inch tires with 5 psi provides significant 'squish', ... that addition of the Thudbuster LT is everything to make the ride more comfortable and non-punishing (except in your muscles, depending on your effort).

These posts do not look 'stupid', they look great. They are also easy enough to swap in different bumpers is so desired. I'm also running the neoprene overboot for the Thudbuster LTs I'm running. They may or may not be worthwhile but I'm willing to buy and install the overboots to protect my equipment. The overboots also have a big strip of reflective tape on the back and that will certainly keep your friends from losing you in the forest in the dark winter while you're out fatbiking in the late evening.

One suggestion I have though is for sizing. Given the transferability of the post to other bikes I suggest buying the 27.2mm size and using a shim for larger seat-tubes. This allows the post to be swapped out when it's time to sell the 31.6mm seat-tubed fatbike (or what-have-you). The reason for this is to allow you to keep the post and use it on different bikes in your stable. I'm currently running two 27.2mm Thudbuster LT seatposts with shims and both are as 'good / sturdy / noise-free' as the others. Shims are cheap, the LT itself is not.
Cheers.

1 month ago
Verified Buyer
Verified Buyerus
Verified OwnerVerified Owner
5/5

Best suspension seatpost made! Anywhere!

Verified reviewVerified review - view original

4 months ago

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