Cane Creek Thudbuster ST Seat Post


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  • Cane Creek  suspension ideal for ebikers
  • 1.3" range of travel (for 3 inches of travel see the LT)
  • Constructed of Forged CNC aluminum
  • Delicately detailed with Stainless Steel axles and PTFE-impregnated sintered-bronze bushings.  
  • 27.2mm seatpost diameter. Use optional shims to make it fit your larger seat tube
  • (31.6mm shim sold here), (28.6mm shim sold here)
  • Comes with 2 firm inserts

Suspension seat posts are an ideal solution for ebikes where rear triangle space is critical for battery storage and the drawbacks (a bit more weight and a bit less efficient when pedaling) are negated by the electric motor. 

Luna is proud to offer authentic Thudbuster Seat posts at the lowest price anywhere to make our customers e-ride a little bit cozier. 

This is the ST (short travel version) which only gives you 1.3 instead of the 3 inches the LT gives, but for  some riders the 3 inches is too cushy.

Thudbusters have proven to be enough suspension for most ebike riders and is a very popular upgrade.

Full suspension mountain bike frames are not well suited for mounting ebike batteries. The ideal ebike conversion has always been a hard tail frame because then you have a full sized triangle to mount a battery pack.

A Thudbuster gives you 1.3 inches of suspension which is good enough for most ebikers.

Since most Ebikers are not riding really technical off road, a suspension seat post is usually adequate suspension instead of a rear suspension.

2 Reviews

Andrew Young Oct 9th 2017

Worth getting

I paired this with the KHS 1000 4 season bike. Between this seat and the aired down tires its not bad for a suspension free bike. Don't get me wrong it's not even close to how a full suspension feels but it's a big improvement over without thethudbuster. I'm 250 lb fyi.

Jul 17th 2016

Great seat post!

I paid 150 dollars on Amazon for this post before Luna started selling it. This is a great post especially if you don't have the room for the larger LT model or you don't want a ride that is too squishy. Very good at smoothing out the vibrations of the road and soaks up and takes the edge off medium sized bumps as well. I would say this is more for people that ride roads, MUP's and smoother dirt trails.

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