Quote:
Originally Posted by defcone
Hello there, I just got a x4 pro and wanted to run 17.5t non boosted class. However I couldn't get the gearing right with the 85t spur, are there any other spurs which fit? Currently need a 5.5-6 fdr according to the guys that run.
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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?