Based on the knowledge I gained from my previous construction:
endless-sphere.com
I decided to build something smaller for my children
It is (or rather, it was) a small quad for children with a 125cc engine and 8-inch wheels
Of course, to make it a bit more challenging, I decided to convert the front braking system from mechanical brakes to a hydraulic setup.
Motor mounts:
Battery 72V 20S
Made from:
LG P34 34Ah NMC pouch cells
ANT BMS
Closed in alloy housing
Controller Fardriver ND72450
Drive: #35H chain
9T Front
65T Rear
Current gear ratio is a bit too fast - atv reaches up to 50 mph.
75T rear sprocket is on the way.
When an experienced (or heavier) rider drives with full power motor is overheating, after 30 minutes of intense riding.
Not much, but feel that the controller starts limiting the power.
Changing the gear ratio should solve this issue.
I thing a better solution would be to use QS120 V3 (with bulid-in gear reduction)
ATV Adly QS138 90H V3 + Votol EM200/2
Hi. Base for my build is ATV Adly SuperSonic 50 https://www.1000ps.com/en-gb/model/6158/adly-supersonic-50/2016 The previous owner hasn't used it for the last few years, so there will be a lot of work to refresh some key elements It is factory fitted with 50 cc engine, but frame is identical to...
endless-sphere.com
It is (or rather, it was) a small quad for children with a 125cc engine and 8-inch wheels
Of course, to make it a bit more challenging, I decided to convert the front braking system from mechanical brakes to a hydraulic setup.
Motor mounts:
Battery 72V 20S
Made from:
LG P34 34Ah NMC pouch cells
ANT BMS
Closed in alloy housing
Controller Fardriver ND72450
Drive: #35H chain
9T Front
65T Rear
Current gear ratio is a bit too fast - atv reaches up to 50 mph.
75T rear sprocket is on the way.
When an experienced (or heavier) rider drives with full power motor is overheating, after 30 minutes of intense riding.
Not much, but feel that the controller starts limiting the power.
Changing the gear ratio should solve this issue.
I thing a better solution would be to use QS120 V3 (with bulid-in gear reduction)
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