I think your asking how to restrict the speed of a 50cc. mini bike, you can do this with the throttle cable, adjust the cable to only open the carburetor 1/2 (half) way. If you mean how to UN-restrict the bike, the usual way is with a throttle stop, simply loosen the cinch nut and back off the stop until you achieve full throttle, and retighten the cinch nut.
You can restrict its performance but no you cannot change from 100cc to 50cc unless you have a 50cc engine for the same model bike, but requires more work than worth as you would need to downgrade other parts.
I think your asking how to restrict the speed of a 50cc. mini bike, you can do this with the throttle cable, adjust the cable to only open the carburetor 1/2 (half) way. If you mean how to UN-restrict the bike, the usual way is with a throttle stop, simply loosen the cinch nut and back off the stop until you achieve full throttle, and retighten the cinch nut.
You can ride a 50cc at the age of 16 if you have a CBT which costs around £90. The bike also has to be restricted to 30 mph but most people illegally de-restrict them.
50cc dirt bike may be available at a bike specialist store, but very unlikely. Most 50cc dirt bike are seen online for purchase only. For example eBay and Amazon.
no i cant turn a 50cc pitbike into a 125cc pit bike the bike will blow up .
THATS NOT A QUESTION, A QUESTION WOULD BE WHERE CAN I GET 50cc POCKET BIKE PLANS ? OR WHICH POCKET BIKE FRAME IS THE BEST FOR 50cc, OR WHICH IS THE CHEAPEST TO MAKE ?
Ebay
The top speed of 50cc quad bike is aprrox. 30mph to 40mph. motorcyclesdir.com/
There are a lot of places in order for one to buy a 50cc ATV quad bike from. However, one might want to purchase a 50cc ATV quad bike from the website eBay.
To De restrict your generic cracker. Your exhaust will have to be changed and will cost around £100
Yes you can put on a 110cc bike engine on a 50cc bike and if there is any modification work then just take it to a local bike repair shop.
The height of a 50cc dirt bike would depend on the year, the make, and the model. However, they average about 30 inches at the handlebars.