Have this seatpost already several kilometers in use and it can so far only be recommended! Since I take the time even 120 kilos I had to replace it with the harder spring up to 120 kg the supplied spring, however. The replacement of the spring is a no brainer for any self wrench! The joints etc. and the spring were equal greased before mounting to the bike with a good bearing grease and creaks or squeaks so far absolutely nothing. Since the body weight is not fully borne by the saddle but is distributed on the feet / pedals or arms / arm I previously had no strike etc. Setting the optimal saddle height / tilt and the distance to the handlebar was unlike other reviews without any problems but that just depends on the saddle used. The ride is the first kilometer course unfamiliar but soon you realize no longer aware of how the support works. For driving comfort say only one thing: Never again without !!
