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My best guess is for a stock dirt bike, the BMW HP2 Enduro. It puts out 105 hp at 7000 rpm. The following is a excerpt from a 10 day test of the bike by motorcyclists-online.com:
The HP2 is a true gravel rocket and the ultra strong engine is good for some indecent top speeds off-road. It can easily do 125mph, truly a break neck speed off road.
If were talking pure mx bike, KX500 or CR500.
What else can I help you with?
What is the fastest 4 stroke 125cc dirt bike?
None, they all suck.
What kind of oil for 4 stroke dirt bike?
4 stroke
Can a 100cc 4 - stroke dirt bike race against 85cc dirt bikes?
No we can't use 100cc 4 -stroke dirt bike race against 85cc dirt bikes.
Is a 2003 yz85 a 2 or 4 stroke dirt bike?
A 2 stroke.
What is the most powerfull engine in the world?
the fastest dirt bike in the world is the 250 4 stroke engine out boarded with cases it does about t hundred on the straight
What is the average top speed of a 60cc dirt-bike?
depends 2 stroke of 4 stroke and racing bike or a trail bike
Is a Yamaha pw 80 a 2 stroke or a 4 stroke dirt bike?
It's a two stroke
How do you know if your Orion dirt bike is a 2 stroke or a 4 stroke?
All of the Orion bikes use a 4 stroke engine.
Is a 2 stroke dirt bike faster or a 4 stroke?
For the same engine size, it should be.
Can you use 2 cycle oil in a 4 stroke dirt bike?
No
How often do you have to rebuild 4 stroke dirt bike engines?
100hrs
What gas do you use for a 4 stroke dirt bike?
92 octain
