It will go about 70-75 stock
With stock gearing around 63 mph
stock gears around 75-80mph
700cc / .73qt
With stock gearing 62-65 mph
Stock the claimed hp is 40 hp.
These (link below) are for a 08 RM 125.
Will a 94 rm 125 engine fit on a 2000 rm frame?
A 1997 rm 125 can go around 60mph.
The 125 Liquid cooled is a light bike and is very fast but the 250 liquid cooled has a faster aceleration the top speeds are only about 10 mph difference but the time it takes to get there is much faster on the 250.... SO in race the 250 will be gone compared to the 125. This will manly apply to non modified engines and stock gear ratio.
no
There is a big difference the rm is much faster