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10.25.2009, 11:28 PM
I've been looking through various manufacturer's motor specs, and they typically list something around 50,000 max RPM for the ROAR legal motors. 17.5 typically has a kv of 2200, which yields ~35,000 RPM on 4s. Perfect IMO. And besides, they use the same construction to make 3.5t motors, which are ~10,500 RPM/volt, which is over 70k RPM on 2s!
SH Z-Car, Custom Crawler, 8s Savage, 12s XTM XLB 1/7 buggy, 4wd 4-link rear/IFS Pro4 truck, Custom Hyper 10 Short Course, Belt-Drive Mammoth ST 1/8 truggy, 4s 17.5 MM Pro HPI Blitz
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