REDSHIFT ShockStop Suspension Seatpost for Bicycles

Product Information

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. What about heavier riders? My current set up still has quite a bit of preload you can dial in (which stiffens the feel of the post without reducing the travel). But heavier riders may still find that they should be running a stiffer spring. For those riders, Redshift is working on a new stiffer spring option that will include both the main and inner spring with springs made from a material that is 25% stiffer. This option will likely be available for sale from Redshift in the new year. Here’s where it gets interesting though. I’ve been suffering from some knee pain recently from a noncycling incident, and thus have been spending a little more time seated while pedalling than I may have liked. The By.schulz G.2 is a very highly-rated seatpost. There is a short-travel version with 30mm, and a long-travel version with 50mm of suspension.

And finally, the air seatpost improved things a bit (6% improvement) but clearly requires a higher bump force to activate than other suspension seatposts. I have one. It’s the best suspension seatpost I’ve used to date (I’ve no experience with the Kinekt, but have had Cane Creek Thudbuster LTs on 3 or 4 of My bikes, 2 Thudbuster STs (still have one); a by.Schultz LT 2.0; ridden a SunTour on girlfriend’s bike and cheap rubbish PostModern as a novice rider over 20 years ago). Below are My observations: Don’t get us wrong, the linkage and post are very active but now on a smaller and more refined stroke. Shifting your weight around on the saddle doesn’t offer the big dip that we would get on the original sprung version. For us, this makes it a better fit for someone looking for just a bit of relief from either a harsh or overly stiff bike. It’s also a solid option if your frame doesn’t have room for extra rubber and pneumatic relief. 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. Then of course, there’s the weight. At 567g with both springs installed, this post isn’t exactly light. But then again, it’s not far off many dropper posts either.

Can I use a saddle bag?

That said, this test was conducted using rigid carbon and aluminium seatposts, so it’d be interesting to find out whether suspension seatposts are more effective using the same test protocol. The Spring Systems of Suspension Seatposts The Byschulz G.2 LT is a spring-damped suspension seatpost offering 50mm of suspension travel. 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. You can measure the length of your existing stem as shown in the following picture. The length is measured from the center of the handlebar to the center of the steerer tube.

The easiest way to determine your steerer tube size is to use a pair of calipers to directly measure the diameter or take your bike to the local bike shop and they will be able to measure it for you. Alternatively, most of the time a manufacturer will list this under their specifications in the Frame/Fork section. Make sure you are looking at the correct model year as these sizes can change year to year. Its two-bolt saddle clamp remains level atop a parallelogram linkage pivoting on dry-lube bushings. When weight is added to the post a link compresses the internal spring(s), creating user-adjustable sag, which Redshift recommends should be around 20 per cent of the 35mm total travel.The weight chart runs from 50-110kg, with riders over 90kg advised to use both springs, the smaller sitting inside the main spring when fitted. The system feels well-damped and there’s no noteworthy ‘bounce’ at any cadence. The saddle bottomed out a couple of times over bigger bumps; more spring compression might be useful off-road. Best method: Use a pair of calipers to directly measure the diameter or take your bike to the local bike shop and they will be able to measure it for you.