It has been many years since I've last owned an R/C boat. I picked up a Traxxas Spartan hull and am starting to build it up using stock parts except for the esc and motor. The two big things that Traxxas leaves out of its manuals is the esc amps and the motor Kv. I have found the Raider 6s 150 Amp esc. I'm stumped by the motor Kv.

I'm looking at the Leopard 4092 (seems to match the 540 motor in the Spartan photos), but I don't know what KV I need to buy. I am not looking for all out speed. (45~50 mph?). Just easy running.

Need some help with this one.

Thanks,

wetbob