[atver13]

would it be worth it to put a 700xx motor into a 450r frame. or would it be too much work to be worth it?

 

[USMC0861]

would be fun....biggest PIA is lining the sprokets up and keeping the weight balanced at the same time

 

[atver13]

ya but it would be fast and might make a nice mxer

 

[Baxter]

You would need to build a new chassis. The sprocket alignment is easy one to solve .The biggest problem is swingarm pivot point. I know a way of doing it ,or should I say, I have seen some pics on the internet that made it simplier to do.
The stock 450r chassis would break ,even at the thought of this motor being fitted.

 

[Baxter]

Also a stock 450r rollin chassis and 700xx motor will weigh 430lbs . The 700xx motor and chassis can be made to match that weight.

 

[vfm2010]

perhaps it will look something like this.
http://www.dirtwheelsmag.com/ME2/di...0&tier=3&nid=7095D2C297E44470895E3E4CBB8D0756