All the micro ie carisma,losi use 4500kv which comes with the car
The rest is done with the gear ratios, unless your a carisma team driver they use
6500kv Tbh 4500 kv is plenty fast enough just gear it up especially when carisma won last years micro nationals
With the losi mini catching up very fast even with the 4500kv standard motor in the kit
We run a micro and 1/10 th scale club with not much room but tbh
You dont need much room for the micros unless your your running to brca regs which would mean you need 20 mt back straight
If we were not so far away some of us guys would be interested