</span><em style="line-height: 20px;">The problem with sus seatposts are, they are changing your fixed leg length from the saddle to the bottom bracket height. You should always maintain a fixed length unless you like to end up with damaged knee joints and torn ligaments. Its the same effect as riding a bike with the seat to low. This is one of the reasons why the Trek Y bike was NOT sucessful and was canned due to the seat height to BB changing while riding.Alot of pro riders compared it to riding a bucking bull.</em><br><em style="line-height: 20px;">Suspension seatposts are good for cycle path riding but not offroad. They also have a problem with "stiction" Stactic Friction after a while and end up binding.</em><br><em style="line-height: 20px;">Geoff<br>PS Lampliter,<br>GT (garbage truck we called them) did make some great bikes. Zaskar LE, GT I drive etc. Nice stonework there too<br>Here some nice MTB names (Cannondale, crash n bale) (Diamond Back, dive n crack) (Trek, Trash) </em><span style="line-height: 20px;">