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WileCyot, I am not sure about the 2001 CR125R frame, but we have done conversions on the 02-07 CR125R chassis' and it was pretty difficult due to reshaping the rails. It's obviously not impossible but there are easier conversions, in my opinion. I can see how it would make sense to do that conversion, though, since you have a frame...

If you're looking for high quality used dirt bike, motorcycle, or ATV parts then check out www.cannibalcycle.com. They sell high quality used parts for a fraction of the new OEM price. Check them out!

respect_the_beast, Really cool looking bike! How did our parts work for you? Any suggestions? We would love to hear your feedback. Thanks for sharing! CP500 ConversionParts500.com

05-08 CRF450R complete conversion kit is here! Several people have asked us to notify them when our 05-08 CRF450R kit was complete, so I thought I would share with everyone. Here is the URL http://www.conversionparts500.com/#!/~/category/id=5270709&offset=0&sor… Let me know if you have any questions. I am happy to help. Thank you, CP500 www.conversionparts500.com

We have some information on that on our website. If you scroll down to the bottom and under "A Note on CR500 Engines" it will give you some information on what you're asking. Here is the URL http://www.conversionparts500.com/chassis-info.php I hope this helps!

mxbeast, We have updated our instructions on our website. We made sure all of the correct and helpful content exists. Let me know if you have any questions. Good luck on your project! -CP500 conversionparts500.com