PTI Goliath MMT gear ratios / MPH

[Mazlem]

I've put together a spreadsheet which shows the stock gear ratios and the (theoretical) MPH for the PTI Goliath and thought I'd share it with any of those interested in this truck. Below the stock chart you can put anything you've changed into the blue cells and it'll show the new ratios / MPH.

Click here for the spreadsheet.

According to a member on One18th.com the largest spur gear that'll fit side-to-side is a 93T, and the smallest 48P motor pinion I can find is 12T. That puts the lowest ratio possible at 73.63:1 with a top speed between 2.94MPH and 3.68MPH for 4-5" tires.