I don't know that you could get it geared down enough without going to a airplane reduction like a GD600 or something, it might have a lot of torque, but you just don't need the rpm. For right now, brushed is FINE for crawling, in fact, I'd say it's even better. The main motor that most guys run is the Integy 55x1 comm lathe motor (slow, but tons of torque), and for $20 a motor, why wouldn't you go with it. The brush wear is non existant, and they take beating after beating on Clod gearboxes that slam against the rocks.
Oh yeah, one other thing. Anyone ever see the vids from the ORCRC (Oregon Radio Controlled Rock Crawlers) gang? One thing they're always doing is playing in or around water on darn near every course. The trucks are repeatedly rolled into puddles, driven through mini ponds to get to the next obstacle, and generally beaten senseless. I would keep my $200+ bl systems as far away from a crawler as possible, and I'm just fine with running a Super Rooster and dual 55t lathe motors.
If you haven't already, check out
www.rccrawler.com for any other info on both this topic (johnrobholmes had a bl crawler) or any other random crawler question.
Threaded Mode
