why do they mostly run 2-stroke in FMX??

[gizzy2014]

Just wondering why alot of the bikes in FMX are still 2-stroke's with everyone else switching to 4-stroke's now??

and most of the freestyle quads are 4-stroke??

just thought i would ask on here to see if anyone knows why

 

[gizzy2014]

alright i did alittle digging since i asked this on here and idk if any one is interested in the answer or not.... but

1. lighter bike
2. no gyroscopic effect of spinning internals
3. snappy-er in the air
4. sound cool
5. 2-stroke rules

 

[Larry's Shee]

You have 4 of 5 right.
ANYTHING spinning has gyro effect.
Biggest thing I would think is engine oil in a 4poke. Upside down would lose prime in oil pump, excess oil towards top of cyl/underside of piston.
2s is more responsive to raise front wheel with throttle.

Smokers don't sound like lawnmower.

 

[MrTwoJay]

Power to weight ratio and the ability to rev... and dont forget they are much more fun to ride.
I have had friend get off my bike with a big smile, and they have MUCH bigger 4 pokers... Everyone seems to underestimate the little 200cc

 

[gizzy2014]

You have 4 of 5 right.
ANYTHING spinning has gyro effect.
Biggest thing I would think is engine oil in a 4poke. Upside down would lose prime in oil pump, excess oil towards top of cyl/underside of piston.
2s is more responsive to raise front wheel with throttle.

Smokers don't sound like lawnmower.

the oil is fine for flips...... u ever spun a bucket around your arm over your head?? it doesnt fall out, and from what i read yeah everything spinning has gyro effect, they just have more spinning