The eeSilk Post comes in a 27.2 diameter and is 350mm in overall length. Interchangeable elastomers allow the post to accommodate riders ranging from 100 lbs (45kg) to 330 lbs (150 kg). 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.

I’ll be honest, when it came to Enve, there was a time when I wondered what all the fuss was about. Then I rode a set of its gravel wheels. My expectations of its products were forever raised by this syrupy smooth set of hoops. I had high demands for the seatpost. Skinnier seatposts are in vogue at the moment for the same reason skinny seatstays are popular: the theory is that they offer greater flex and therefore comfort. while going a bit too wide would call for some more grinding – but it’s probably a safer way to go (“measure three times, cut once” is a local saying). To help prevent mistakes when purchasing or changing seatposts, this article explains what kinds of seatpost diameters are most commonly used and how they are measured. Only diameter (width) is dealt with here. The length of the seatpost depends on frame geometry (design) and size – i.e. how much the saddle needs to be raised from the end of the seat tube. A separate article explains the maximum amount of seatpost extension from the frame (minimal insertion length). For seatpost height in terms of bicycle fitting, see: Setting up comfortable riding position.

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Getting a saddle straight in the clamps can, at times, be a minor faff. Too often the clamp mechanism can be slow to react or overly sensitive to the tightening of the bolts. Not here. I had my saddle set and tightened almost immediately. It really was that simple. Once on, the seat looked reassuringly solid in its level position. I trusted it would remain so once I got riding… Enve carbon seatpost - the ride How to measure the seatpost diameter? The easiest and most accurate method is to use calipers (Vernier, or digital), as shown in picture 2. Measuring seatpost diameter using calipers.

I would normally say: “don’t take my word for it, try it, with a smaller diameter seatpost (0.2 mm is enough, but you can go 0.5, or 1 mm, as you said, to get “faster” results)”. However, this does pose a risk of damaging a frame, so do it only on a frame you are willing/prepared to damage.Reviewing bike parts is somewhat subjective. So to better try and evaluate the performance of the Enve seatpost, I swapped in another expensive carbon seatpost by way of comparison. I did this again with a high-end aluminium model. Can’t understand that much of a mismatch. I value quality and precision over quantity, but it seems that many manufacturers have a different view on that. No other explanation comes to mind. When engaged, the suspension linkage compresses a steel spring inside the post’s column that’s sandwiched in between two plastic spacers. All of these innards are compressed against a hollow plastic pipe that seats against a threaded preload screw at the bottom of the post. Redshift also includes a smaller, secondary internal spring to provide additional firmness, depending on your desired ride feel. The photo sequence above shows me sitting on it set up out of the box—main spring only, with preload somewhere in the middle—with its sag affected by only my weight (about 175lbs). Ritchey company used to be quite good, but I haven’t bought anything from them for a while – and they don’t seem to be making any 25.4 mm sized ones.

If you don’t have calipers, you’re hard-pressed to get the diameter. An adjustable wrench can be used as calipers, then measure the gap on the wrench. However, it’s almost impossible to distinguish 0.2 mm increments with a tape measure. Measuring the circumference of the post and dividing by Pi is a good method. There are even circumference tape measures to do it. One (precise) measurement is often better than a thousand expert opinions”– author’s expert opinion. 🙂Enve's 2nd generation head is better than the old one but still not that good IMO, and it's expensive, overpriced as most things Enve. hand market (and local bike shops) is where I’d look. With a wallet in one hand, and accurate & precise callipers in the other. 🙂