Quote:
Originally Posted by 4_cell_racer
Looking at a gear chart
Your gonna need a 40t pinion to gain a 5.52 fdr or a 36t for a fdr of 5.97
The spur for the x4 seems the same style as the Mad Rat/Mad Monkey which are 80t so you could go 38t to gain a fdr of 5.47 or 34t for 6.12 fdr
Search for Mad Rat Spur (JE Spares) and there should be a pic of the MR/MM spur
Hope that helps?
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The problem is that it looks like the biggest pinion I could get in there is a 25-28t. And it doesn't look like a 80t will be small enough? Is the internal ratio 2.437?
Thanks for the help.