I think you about summed it up. I think a Supermini or even a stock KX100 would smoke a CRF150r in a drag race. But I think a lot of riders would turn faster lap times on a CRF150r because of the easy to ride power of the four stroke.

 

I own both and personally would take my 112 any day. My 150 never gets ridden i hate it. It doesn't feel easier to ride like a 250 does you still have to push it, but that is just my opinion.

 

I prefer the 150 for the deep stuff such as sand. Considering I ride Southwick every week, it takes a lot for a 2 stroke to make it around especially on my 85. The superminis even need to be pinned to keep up their momentum.

 

I own both and I say the 2 smoke has the upper hand in either mix mainly due to the fact that the 150R is only fast with a matching youth rider (what the bike was designed for) with a 165+ # rider it is gutless on the bottom and just as effort involved as the 2 smoke in regards to shifting and riding in the peak of the powerband for both motors. Since my cr has a 6 speed trans and loads of top end power I feel I am much faster on it then the 150r regardless of track size (probably why I ditched the sh!tty 150 mill and dropped in a crf250R).

 

I own both and I say the 2 smoke has the upper hand in either mix mainly due to the fact that the 150R is only fast with a matching youth rider (what the bike was designed for) with a 165+ # rider it is gutless on the bottom and just as effort involved as the 2 smoke in regards to shifting and riding in the peak of the powerband for both motors. Since my cr has a 6 speed trans and loads of top end power I feel I am much faster on it then the 150r regardless of track size (probably why I ditched the sh!tty 150 mill and dropped in a crf250R).

250R motor in a 150R frame :yikes: Very cool. Do you have any pics? That thing must just rip

 

http://planetminis.com/f49/crf150r-250x-build-90693.html

 

A little off topic LasVegas, but I've considered replacing my pitbike with a CRF150r or KX100 (or 85). I ride 99% of the time on backyard tracks so I'm thinking the torque of the four stroke would be an advantage. I love the way the 140cc engine in my Pitster runs but I just want a slightly larger bike. I'm old, slow and lazy so I'm thinking a CRF will be easier/better.

 

http://planetminis.com/f49/crf150r-250x-build-90693.html

That thing is awesome . . .