Quinc
1 kW
- Joined
- Apr 18, 2016
- Messages
- 341
hitting a sweet jump 
Been riding this thing into the ground for a few years now. Picked up a brand new one and figured it was time to make the older one more adult friendly. Goal is enough torque to be able to climb some decent dirt trails and still have 5+ mile range.
First mod - added a beer holder
Second - changed out the motor sprocket from 11t to 9t.
Third - swapped out the rear shock for a 200mm pitbike shock and raised the rear up a few inches.
Forth - Went to 48v
Fifth - will be to pick up a 48v 1800w brushless setup whenever ebay has another 15-20% off coupon
Six - if the torque still sucks will be to get a rebel gears 96T or 100T rear sprocket.
On the maybe list:
Handlebars
crf50 tall seat
wider rear tire
Shock difference
Batteries mounted and wired with 10ga.
Soldered the charging plug directly to the battery. Bought a cheap 48v charger and going to cut the end off and solder on the original plug. And what the motor shaft bearings looks like.
Ordered an lcd volt gauge as well to hopefully keep me from over discharging the batteries. At least until I get a 48v controller
The mx has been getting slower and only lasting a mile or two vs the 10 miles they are supposed to last. So after replacing the batteries and checking the batteries multiple times I took the motor apart. And the bearing the shaft rides in was completly rusted. So cleaned up the motor with a scuff pad and starting fluid and order new bearings.
Took off the dust shields on the new bearing and packed with quality high temp grease. (seems to make these cheap Chinese bearings last longer)
Got the motor mounted and realized the chain had a tweaked link in it, so made a new chain with some spare I had.
Cut the side plastics to fit the forth battery. Then the yellow fenders cover the battery so it is out of site.
Power still leaves a lot to be desired so will be getting the Chinese 1800w motor setup next for her.
Picture is of a 100% stock one and the one I just finished. You can see the height difference by comparing the rear fender height off the back tire.
Been riding this thing into the ground for a few years now. Picked up a brand new one and figured it was time to make the older one more adult friendly. Goal is enough torque to be able to climb some decent dirt trails and still have 5+ mile range.
First mod - added a beer holder
Second - changed out the motor sprocket from 11t to 9t.
Third - swapped out the rear shock for a 200mm pitbike shock and raised the rear up a few inches.
Forth - Went to 48v
Fifth - will be to pick up a 48v 1800w brushless setup whenever ebay has another 15-20% off coupon
Six - if the torque still sucks will be to get a rebel gears 96T or 100T rear sprocket.
On the maybe list:
Handlebars
crf50 tall seat
wider rear tire
Shock difference
Batteries mounted and wired with 10ga.
Soldered the charging plug directly to the battery. Bought a cheap 48v charger and going to cut the end off and solder on the original plug. And what the motor shaft bearings looks like.
Ordered an lcd volt gauge as well to hopefully keep me from over discharging the batteries. At least until I get a 48v controller
The mx has been getting slower and only lasting a mile or two vs the 10 miles they are supposed to last. So after replacing the batteries and checking the batteries multiple times I took the motor apart. And the bearing the shaft rides in was completly rusted. So cleaned up the motor with a scuff pad and starting fluid and order new bearings.
Took off the dust shields on the new bearing and packed with quality high temp grease. (seems to make these cheap Chinese bearings last longer)
Got the motor mounted and realized the chain had a tweaked link in it, so made a new chain with some spare I had.
Cut the side plastics to fit the forth battery. Then the yellow fenders cover the battery so it is out of site.
Power still leaves a lot to be desired so will be getting the Chinese 1800w motor setup next for her.
Picture is of a 100% stock one and the one I just finished. You can see the height difference by comparing the rear fender height off the back tire.
Last edited:
