Gpx125 race engine gears?

[Motovert17]

I've striped the gears in my gpx125 race engine and do not have a clue where you can buy them from , hade a look on eBay but there's nothing. Does anyone no where I can get parts for it??

 

[motovert24]

DHZ and proberly need to get them to order from china...

http://www.dhz.com.au/

 

[Motovert17]

Do u have any engine problems with ur gpx?