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Discussion Starter · #1 ·
My 9 year old cousin has a Electric blue razor. He’s a maniac and wants it to go faster, I told him it’s possible with the right guidance. Can someone suggest parts and leave step-by-step instructions on how to upgrade it? I’d greatly appreciate it.
 

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How fast does he want to go??
There is a currie 500w motor that bolts in, the back half my need to be clocked to get the wire out of any interference. But that would be the only modification. You probably gain 1 - 2 mph.
Or....
Buy a 36v controller and throttle for an MX500/MX650. Then fit a third battery in there. Easiest way is to flatten the sides of the battery tray and fit the three in sideways.
Put a fusable link (30amp fuse) in between each battery.
Thats it, better takeoff, and weight dependent, anywhere between 21 and 23mph. For pavement.
If want offroad, grass etc. Put a smaller sprocket on the motor. I believe it's 10 or 11 tooth, so drop it one which would be 9 or 10 tooth. You will lose a little top speed but have way more low-end power take you through the grass.


And the biggest batteries, if you replace all 3, is the 12v 9ah batteries.
Otherwise one battery at whatever ah the other 2 you have are.
 
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