Hi all, I have a MAN, and with only little tuning it runs very well and don't come off the slot easily
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This is what I have made :
motor taped to the chassis; front tyres substituted with smaller Ninco fronts ( they have to touch a little the track ); well sanded inside rears ( they don't have to touch the track) and also the outside rears sanded and rounded a little; I have also changed the spring of the guide with a softer one from Ninco; I have changed the rear axle, gear and bushes ( glued ) with Slot It ones ( a 27 black crown gear, sanded on the angle because the space available is poor ), and without adding weight or more magnets. I have noticed that the quality of the front tyres has to be carefully matched with the track : we run on Ninco and all the above is good for me on this track, but on other tracks you have to try the height and hardness of the fronts: this has great effects when turning, mantaining the guide into the slot.
Ciao

This is what I have made :
motor taped to the chassis; front tyres substituted with smaller Ninco fronts ( they have to touch a little the track ); well sanded inside rears ( they don't have to touch the track) and also the outside rears sanded and rounded a little; I have also changed the spring of the guide with a softer one from Ninco; I have changed the rear axle, gear and bushes ( glued ) with Slot It ones ( a 27 black crown gear, sanded on the angle because the space available is poor ), and without adding weight or more magnets. I have noticed that the quality of the front tyres has to be carefully matched with the track : we run on Ninco and all the above is good for me on this track, but on other tracks you have to try the height and hardness of the fronts: this has great effects when turning, mantaining the guide into the slot.
Ciao