My Dahon Thudbuster arrived yesterday. After changing out one of the elastomers to get in my weight group, I tried it out. Oh is this nice!!!! What a tremendous design. I am really impressed by the effectiveness of this product. Unreal.

On the downside, the post was not designed for the Curve D3. It is shorter than the stock seatpost, and when it comes time to fold, you notice that. It took me quite a while to come up with the correct dimensions for the handelbar height and brake lever position to allow me to fold the bike. If the seat tube wasn't tapered near the top, it would probably work better. Or if the seat tube was a bit longer. I do have to say that this product comprimises the Curve's relative ease of folding.

14R, With the extension seat post, and the regular Thudbuster, do you have any trouble folding your bike?

Now that I have tried a Thudbuster, I will never be able to ride without one again.