Hey guys got a quick question with the .8 2speed. I know the stock setup is a 1 and 7 pinion gear. Ive run a 0 and 6 with good results on my shorter track.
I would agree with Rapid Roy. The diameters for all the first gears are the same, and the diameters for the second gears are the same as well. So meshing should be fine.
When you buy these gears, you get a gear chart that shows all the different ratios between the gears. I dont think HPI would give that info in the table in you cant use them together.
What your friend could be saying is that because of a big split, you would be putting more strain on the second gear the moment it goes from fist to second.