I'm posting this to finally put to rest the misinformation about 2-strokes over heating... I don't know why everyone continues to believe this nonsense about 2-stroke bicycle engines only being able to run for 20 minutes at a time because they'll over heat... IT'S SIMPLY NOT TRUE!!! If you mix your gas & oil correctly, you can run a 2-stroke 'HT' at wide open throttle all day long without any issues of it over heating!! I'm sure this will spark up a some debate here... & I have nothing against riders who simply prefer a 4-stroker; but this misinformation about 2-stroke bicycle engines has got to be put to rest once & for all!