really depends on track size you goin to run at, stick to one spur, personally the smallest one u have, then change out the pinions, like i said the aim is u want to be able to hit full throttle on the straight, u can have a really fast car but get on a small track u will never be able to hit your top speed, so smaller pinon this will make your top end less but will be faster on the track, it will make it faster out the corners, and u will be able to hit full throttle on the straight and control it nicley
i will be running my mad rat soon with a 4000kv motor, im sticking with the stock 80t spur and will get a punch of pionos for diffrent tracks
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Rc18t madrat
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