Originally Posted by
kyle3333
I just got a 12R5.1 with an LRP SXX and an LRP 13.5. My front tires are 44mm and the rears are 46mm. The spur is a 96t, what pinion should I run?
Those are large dia tires, can we assume you are running outdoors ?
Seeing as how that esc does NOT have boost, you are going to have to gear it up a bit.
Maybe start @ 85mm roll indoors and 95 on pavement, so you will need a smaller spur gear. I doubt a 55 to 65 pinion will fit with that 96t.
Try a 72t 64p spur, and a range of high 30's to high 40's pinions maybe.
Gearchart.com can help you with your roll calculations