what is the top speed

 

Somewhere in the low to mid 70's mph

 

thats all a stock 85 can go 73

 

I wonder if a 80 is <u>EVEN</u> doing 55

I think a 125 is doing about 75-80

 

Well my friend had an all stock 02 yz 125 and I would say it did about 70 or so. Since my Raptor at the time would do 78. once I hit 5th gear I could walk away from him.

 

The reason that I say mid 70's is because I ride with 3 of my friends. They have a stock 01 DS650, stock 03 YZ125, and a 95 YZ125 with a Pro circuit plat. pipe. They raced and the DS BARELY pulled away from the 03 on top end. And a DS's top speed is about 73-75mph. The 95 YZ was running like crap though. They both went from 80's (KX, and RM) to the 125's. There is now way the 80's would get to 70mph. I raced them and I pulled away on top. I top out at 65mph. The 80's MIGHT be able to hit 60 at the most

 

ya the yz85 really can do 73

 

yes an 80 can get in the 70's pretty easy. i have a kx 125 with a procircut pipe, uni filter, and wiesco pro lite piston, and my cousin has a cr 80 witch is stock accept it is bored .020. and his bike will put mine to shame and i meen bad. i use to have a yz 125 too, and my kx will beet it. I know... I know. your just gonna say i cant ride or there is something wrong with my bike, but im alot better rider than him and my bike runs better than 90% of the bikes around here. you just think the 125 is faster because of a bigger motor, but put an 80 beside a 125 and your notice that the motor is not the only think bigger, a 125 is twice the size of an 80. but dont argue till you ride one and then the other, you will notice a big difference. my cousins 80 was clocked on my dads shadow at almost 80.(stock gearing)

 

if you gear it high you can! my YZ426 topped out at 80mph and i know a 125 with stock sprokets wouldn't keep up with it. a 125 will run 60 to 65mph.