they suck
^^
First off let me say I agree.
If you're talking about modern MX bikes (not those old crazy guys with road bike engines in dirtbikes) people always tried to race 4 stroke trail bikes with little success in 250 class. It was in 1998 that Yamaha developed the YZ400F and WR400F two high performance, water cooled 4 stroke bikes, one for tracks and one for woods. The bike was the begining of the 4 stroke revolution and the same 400 4 stroke engine went on to win the first AMA championship on a four stroke.
4 stroke
No we can't use 100cc 4 -stroke dirt bike race against 85cc dirt bikes.
A 2 stroke.
depends 2 stroke of 4 stroke and racing bike or a trail bike
It's a two stroke
For the same engine size, it should be.
All of the Orion bikes use a 4 stroke engine.
100hrs
No
92 octain
for a 4 stroke: beginner level 2 stroke: experienced they are huge
a 250 4 stroke