I have replaced my KT with Olaf's tracks and sprocket rings for more than 2 yrs. The quality is absolutely fantastic.
I agree that Per said the sprocket ring is not exactly 1/6th scale of the real one and there is a potential issue of hitting the sponson's front edge. I was doubting it myself, then decided to give it a go, because it is otherwise too good to gave up. I never regret my choice.
My opinion is if you can modified Olaf's sprocket ring to Per's correct size one, do so, otherwise it still works well.
PS, the Olaf's track is about twice on weight to the stock one, because of the different materials. Yet the motors still work well.
Best regards,
Lerh Chang
![Very Happy :D](./images/smilies/icon_biggrin.gif)