It is... I purchased the same cart in March and was completely embarrassed by the 18mph it would top out at. The first time I took it out around town I actually got pulled over because the cop thought I was driving drunk and purposely driving slow! I called all the local dealers and no one wanted to help me. I had one place offer to re-gear it for $1800 and said it would get me to around 32mph. Then I found someone else on the forum that was complaining about the same slowness and that was the advice given. The first time I adjusted it, I went the wrong way with the two bolts and lowered my speed down to 13mph. Went back in and adjusted correctly and now I'm at 27-28mph and the cart takes off much smoother now too. The hardest part is that dang floor mat. It's very awkward to try and hold the mat back and make the necessary adjustment. You'll see what I mean when you adjust yours. Also, be sure to leave that cm of space at the end otherwise you'll hit the limiter and the cart will start surging and jerking. I never had that issues but one of the other users did and they said that's what their cart was doing and they had to adjust the two nuts back down. Basically there is too much slack in the throttle cable (done on purpose to keep the cart at the advertised 19mph) and by adjusting the two nuts, you are removing that slack and gaining the full ability of that Kohler motor.