2007 CRF250

[sugarshane]

So i ended up trading a bunch of old four wheeler parts for a 07 CRF250 chassis with everything except for the wheels. can anyone here tell me which wheels other than a CRF250 will work? Also, i noticed that the gen 4 service hondas use the 250x airbox setup. I assume this is a lot easier than the R? has anyone had any experience with dual exhaust airbox/subframe set up AND the X set up?

[Roostius_Maximus]

we used the dual exh airbox and a 97 250 boot

wheels are the same on the front 94+
rear wheels are the same from 2000+
you can use any 4bolt rotor wheel 18" or 19" 1991+ on the back with a bearing swap, buy a bearing kit for a 2000+ and put them in it, you'll need a new spacer between the bearings, i can make that for you cheap if you need. Use a 1997-2001 rotor on it and it'll fit maybe even the 2010 chassis

[KE 336]

Roostius, you saying I could run my 97 18" wheel on my 450 if I just install later model bearings?

[Roostius_Maximus]

i have most of mine changed over now., you have to use the big 8mm bolt rotor to match the newer bikes.

[Roostius_Maximus]

you have to change the tube that spacers the bearings too

[sugarshane]

we used the dual exh airbox and a 97 250 boot

wheels are the same on the front 94+
rear wheels are the same from 2000+
you can use any 4bolt rotor wheel 18" or 19" 1991+ on the back with a bearing swap, buy a bearing kit for a 2000+ and put them in it, you'll need a new spacer between the bearings, i can make that for you cheap if you need. Use a 1997-2001 rotor on it and it'll fit maybe even the 2010 chassis

i think i might have to take you up on the spacers. how well did the 97 airboot fit? I know that Bob said that he still had to "clearance" the airboot from the frame on his X. how much better does the X subframe/airbox work over the R?

[Roostius_Maximus]

i dont remember how the fit was, think it was good. we did have to cut clearence on the inside of the chassis, same on the gen2 and 3 frames need

[blackz34]

i have most of mine changed over now., you have to use the big 8mm bolt rotor to match the newer bikes.

I have a Cr500 94 rear wheel, so it should fit my CRF450 if I put :

-CRF bearing
-Bigger rotor from a 1997-01 (from a 250 I guess? because 89-01 500 rotor all have same parts # from what I saw )

Questions:

-Is there a OEM bearing spacer(tube) that will fit or one that is longer that I could cut or should I make my own?
-What seals do I need, the CRF doesn't seems to fit.
-Wheel spacer, do I use the CRF ones?