Most powerful dirt bike ever made...?

**Armitage Shanks** · 30th January 2009, 17:49

Not sure but the KTM 550 two stroke from the late '90's poked out some serious HP's but was a short lived machine. My guess is the KX500 which was discontinued in '04 at around 65hp's at the crank vs a dry weight of 100kg, the CR500 ( discontinued in 2001) which weighed a little more had a crank reading of ( claimed ) 64 hp and 101kg so it's semantics. I'm lucky to have one of both still ....:whistle

Been riding 500's for over 10 years now including some nasty bitches ! Well...I guess they all are.....

**ArcherWC** · 30th January 2009, 20:19

Originally Posted by DEATH_INC.

What about tha Maico 760 (?) monster from back in the 80's?

that would be my guess too

**courts** · 30th January 2009, 20:36

booms cr250 makes 70hp + doesnt it?

farkin pussy 4 strokes blah blah...............

**cheese** · 30th January 2009, 20:56

Come on don't be silly. Its 65hp

**xr-rider** · 30th January 2009, 21:06

i reckon the new atk 700 2 stroke, 78hp.
the new maico 700 2 stroke, 81hp

**honda_power** · 30th January 2009, 21:08

the ATK intimidator wins hands down. 700cc Two Stroke MX Bike. They still make em now.

"Apparently no one's told Utah-based ATK Motorcycles that two-strokes are dead. Their 700 Intimidator features a 78bhp, 700cc two-stroke engine in a top-drawer motocross chassis. The whole thing weighs just 238lbs dry. That’s about the same as a current 450cc four-stroke motocross bike but with nearly twice the power."

http://hellforleathermagazine.com/20...-intimida.html

**DELLORTO** · 30th January 2009, 21:16

ok we have a winner ATK 700CC 2 SMOKER !!! suck on that 4t's

**Ktmboy** · 30th January 2009, 21:18

Now that is a beast and one that yours truly could really get exited about. Jeez...

**McJim** · 30th January 2009, 21:19

Why not just drop a huge fuggin' engine in a dirt bike frame and be done with it?

**cheese** · 30th January 2009, 21:24

I saw a vid of something like that. it was some road bike 1000cc engine in a dirt frame.

**warewolf** · 30th January 2009, 21:33

78bhp? Bah humbug. Try 125 !!

Kenny Roberts' 1975 Yamaha TZ750 dirt-tracker. 750cc 4cyl 2T. And yeah McJim: they did what you suggested

**A&R** · 30th January 2009, 21:37

Originally Posted by cheese

I saw a vid of something like that. it was some road bike 1000cc engine in a dirt frame.

see the link. http://www.zabel-racing.de/en/motors.html does this count these are the mx sidecar engines . 700cc of two stroke knocking out 62 kw, 84.88 hp. I supposed you could shoe horn it into a Cr frame !!! that would be fun!

see this http://nz.youtube.com/watch?v=9NHvhXPdHMothink i used to do this!!!!