[xcntrk]

Thanks all...

I’ve decided to stick with the slayer tranny with RCM mount and lock it into 2nd instead. It’s already FOC so just need to perform the actual lockout. Also planning on using the “wide-ratio” 2nd gear (38t) combine with the smaller 36t spur and a larger pinion (18-20t). Using Brian’s calc, looks like the relatively small 2.2 tire is going to need some much higher gearing to get the speeds up (compared to the big monster truck tires). I have a Nue-1512/2.5d not being used that I’ll throw in there but even at 2050k on 4S, combined with this longer gearing, and it’s still only estimated at 25mph (according to the calc). I’ll give this a try and if not quick enough I may need to step up to a higher kv motor (like a 1515/1.5d or similar).