I had it installed on my cross bike for about a year. If you ride a bike without suspension, you can feel the vibration reduction effect considerably. I am selling it because I no longer use it after switching to a hardtail MTB. The included elastomer uses only yellow (50). Only the manual is missing. Although the condition is good, there are some small scratches, so please refrain from purchasing if you are sensitive. The column clamp diameter is 1-1/8 inch and the weight is approximately 250g. Regular price: around 28,000 yen #Stem