It depends a good deal on the gearing of the bike. If everything is stock, it will be around 70 MPH. If modifications are done, it can about double that.
about 70mph
125km
Lower 70s stock
With stock gearing around 90-100.
no the 1985 kx 125 cylinder will only fit years 85-87 kx 125s
The kx 100 goes about 65 mph i had my kx 100 tested
no i have a 2000 yz 125 and can beat a kx 125 blind folded
Yes
70-75 i have 1
around 68mph
kx 100 is faster on bottom end speed kx 85 is faster on top end speed so they are about equal to some extent. ;)
Approx. 120-125 kph is the Top speed of this machine.