REDSHIFT ShockStop Suspension Seatpost for Bicycles

Product Information

If you are out for a tough gravel race or longer adventure, this post is going to make a huge difference to comfort levels. If you ride a mix of gravel and tarmac roads, I don’t know if you can do any better than the Cane Creek eeSilk.

Reduced fatigue: By reducing the amount of stress and fatigue on your body, a suspension seatpost can help you to conserve energy and ride for longer without feeling as tired. If smooth roads are your thing, you’ll likely find spring seatposts a bit too active. This brings me to elastomers… The Cane Creek Thudbuster uses an elastomer to provide more damping than a coil spring. Due to the vertical flexibility of 35 mm, it is suitable for almost any type of bike with a seat tube inner diameter of 27.2 mm Bikes with a larger diameter can be adjusted with an optional reduction sleeve. At 150lbs, initially I went with their recommendation of the Main Spring only with preload at #3. This was way too soft in my opinion, especially for more spirited riding. The next step was to increase the preload with just the Main Spring. Eventually, I cranked it up to 4 which is the maximum recommended preload setting with just the main spring. It was better, but I found that it resulted in a ride that was still a little too active, and it was more prone to ‘topping out’ with a thud in certain situations.

Redshift ShockStop PRO RT performance

Redshift’s take on a suspension seatpost not only looks interesting, but it promises great performance. I’ve spent years on the previous version of the Cane Creek Thudbuster. With its slower rebound speed, I think it’s a great option if you ride a larger percentage on smoother surfaces, as you don’t really notice the suspension bob. The 50mm of travel is ample for off-road use too.

A telescopic post is usually considered inferior, as the angle that it compresses is different from the direction of force coming from the rear wheel – resulting in a less reactive suspension system. Telescopic posts also end up with a shorter saddle-to-pedal distance when you are riding over bumps. The results are very clear. The Redshift suspension seatpost on firmness level 3 was much more comfortable than both my Ergon Allroad Pro and FSA carbon seatpost. I’ve only gotten four or five rides in with the new Thudbuster, but I’m quite impressed. The redesigned seat clamp is fantastic, and I found the new elastomer system to work very well. Unlike some of the softer, coil-sprung posts, the new Thudbuster offers a nice mix of chatter dampening and medium-hit suspension to take the edge off of sharper bumps. And, it doesn’t feel as if it has as much of an effect on pedaling efficiency as other, longer travel posts do. The NCX seatpost features a patented parallelogram design that Suntour claims works well for small bump compliance. The post has a total of 50mm travel and was designed with low maintenance and long term durability in mind. John has been writing about bikes and cycling for over 30 years since discovering that people were mug enough to pay him for it rather than expecting him to do an honest day's work.Deflection is the total movement that a seatpost will move after an impact. A seatpost with more deflection will reduce the fatigue on your body as it protects you from harder jolts like unexpected potholes or dirt road corrugations. It’ll also allow you to keep pedalling through particularly bumpy terrain.