Crf 250 front end in 96 cr 250

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7/8/2017 10:03 AM

Can anyone tell me the bearings needed to retro fit
2009 crf-250 forks and triple trees into
1996 cr-250
Thanks in advance

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7/8/2017 12:36 PM

Look up bearings with the 09 CRF i.d. and 1996 o.d and depth, very easy info to find. If I remember correctly the i.d. of the Honda bearings is the same from 1990, or so, to present so the 1996 bearings should be fine, yet my memory could be failing me.

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7/8/2017 4:06 PM

all balls website has a conversion chart

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7/8/2017 7:36 PM

Bottom is the same. Top is a little thinner. All balls sells the bearing and seal plate to bolt it in.

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7/9/2017 1:23 AM

I have tried uploading the allballs conversion page but so far it has just said loading! For the last hour
So not much of a help

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7/9/2017 10:45 AM

xotom125 wrote:

I have tried uploading the allballs conversion page but so far it has just said loading! For the last hour
So not much of a help

I have had troubles with their page too. If you close and reopen in or refresh a few times it will eventually work.
Greg

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7/9/2017 2:13 PM

Still no good with site.
I have tried the clamps
And yes the bottom is the same so the question is
Does anyone know which top bearing to use
Thanks

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7/9/2017 4:54 PM
Edited Date/Time: 7/9/2017 4:57 PM

The site is ornery. I got it to work. Here is the info.


All Balls 1996 Honda CR250 Fork conversion to.......

ID OD Width TOP PN ID OD Width Bottom PN
Honda CRF250R 2009 30 51 15 99-3510-5 30 55 17 99-3519-5

Top Bearing 99-3510-5

Bottom Bearing 99-3519-5

Greg

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7/9/2017 7:25 PM

I thought the fork swap required pressing out the 96 stem for use in the new clamps? Do the modern clamp stops line up to steel frame headtube lug?

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7/9/2017 7:49 PM

Mx746 wrote:

I thought the fork swap required pressing out the 96 stem for use in the new clamps? Do the modern clamp stops line up to steel frame headtube lug?

You don't have to swap the stem with the conversion bearings ad shims from All Balls. The steering stops can be remedied by either welding a little bit of material on the steering lug of the frame side or drill and tap a set screw in the aluminum lug of the lower triple clamp. Others have just left the stops as is and have not had any issues.
Greg

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7/10/2017 2:14 PM

Thanks avmechanic for all the help
Ill order what I need tomorrow

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7/11/2017 9:38 AM

Glad to help. Let us see details and pictures of the conversion when you get it together.
Greg

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7/11/2017 10:01 AM

Yup that's what you need. No need for the bottom bearing unless yours is roached. 06 clamps and 09 front end on my 91. smile

Don't mind the number plate as I just didn't get to adapt my 91 plate in time before the last race. Lol

Photo

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7/11/2017 10:45 AM

What does the 91 ride like now?
Is the fork length the same on both forks
Or does front sit high

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7/11/2017 12:44 PM

Still in the testing and setup phase but they are close in length and the handling is razor sharp. smile

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7/11/2017 4:00 PM

I've done this conversion, i swapped the stem and bearings from the 96 onto the newer clamps. Dialed, nothing else needed.

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twist wrist and go...

brad@palmspringsmotorsports.com

7/12/2017 12:26 AM

Thanks to everyone for the input
If I can fit 96 stem into crf clamps them thats my route!
Bradmx so the shafts are same length and top nut is same thread type correct

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7/12/2017 12:19 PM

xotom125 wrote:

Thanks to everyone for the input
If I can fit 96 stem into crf clamps them thats my route!
Bradmx so the shafts are same length and top nut is same thread type correct

IDK about same length but its definitely the correct fitment, due to different frames i never measured length of stem. I had both sets of clamps laying around so it made it easy. Pretty sure top nuts are identical, again i had both sets to make it work so it could be off either one.

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twist wrist and go...

brad@palmspringsmotorsports.com

7/16/2017 12:51 PM

Avmechanic sorry to be a pain!
Ive just stripped the 96 down and
It is the biggest pile of shit I have ever
Bought!
As im building a bike for vmxdn im running short of time and now have to finish off a 91 cr250 peak bike instead I have in the garage.
The question is
Can I fit 09 crf front end in 1991 cr-250?
I still cant open allballs site so any help will be appreciated

Pics of 91


ThanksPhoto

Photo

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7/16/2017 12:54 PM

Yes. My picture above is a 91 CR with 07 CR clamps. Just a new top bearing and spacer to fit right in. smile

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7/16/2017 1:07 PM

Pics of the sad 96!
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7/16/2017 1:12 PM

450 exc
Do you know ref numbers for the conversion parts?
If you got them from allballs?
Tnanks

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7/16/2017 4:07 PM

Nice ohlins and wp forks though

I'll look up the kit for you

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7/16/2017 8:24 PM

I had a look again. Looks like it is the same bottom bearing as the 1991 and you just need the Top Bearing to fit those forks. PN. 99-3540-5.
Wow. That bike looks like a basket case. My project CR250s are much the same. It is amazing how bad people run this stuff into the ground. Just destroyed. A little maintenance here and there and these bikes could have still been running. I love the restoration and find it quite enjoyable to do but sure wish it didn't cost so much. Good luck.
Greg

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7/16/2017 8:40 PM

If you need the Bottom Bearing you would need PN. 99-3510-5.
I noticed that All Balls site shows the top bearing PN. 99-3540-5 out of stock. It does list the dimensions. Maybe you can find a bearing at a local bearing shop. Here are the dimensions. 99-3540-5 is 30mm ID, 47MM OD and 12MM wide. Good luck getting it together.
Greg

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7/17/2017 1:51 AM

Thanks for that
Ill check out my nearest bearing dealer asap,
Ive got too many projects on the go to get time for a basket case so I kept shock and sold it on

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7/17/2017 9:42 AM

avmechanic wrote:

If you need the Bottom Bearing you would need PN. 99-3510-5.
I noticed that All Balls site shows the top bearing PN. 99-3540-5 out of stock. It does list the dimensions. Maybe you can find a bearing at a local bearing shop. Here are the dimensions. 99-3540-5 is 30mm ID, 47MM OD and 12MM wide. Good luck getting it together.
Greg

Yup those are them. I think I got my bearing out of the UK on eBay

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7/17/2017 10:19 AM

xotom125 wrote:

Thanks for that
Ill check out my nearest bearing dealer asap,
Ive got too many projects on the go to get time for a basket case so I kept shock and sold it on

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Looks like you have a few projects there for sure. I love these bikes. All those Honda models from 86' to 96' are my favourites. I especially love the 88' to 91' 250s as that is what I raced when I was a young lad. I am building 2 88's right now then a 1990. All 250s. I would kind of like to do a 1989 to 91' 125 as well if I can find the right one. Thanks for sharing.
Greg

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7/17/2017 10:46 AM

If you can't find a bearing, you can try here.http://shop.marksman-ind.com/99-3540-5-30x47x12-taper-roller-bearing-32906-15086-p.asp I spotted that in a search.
Greg

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7/17/2017 1:49 PM

I usually have 15-20 evos and super evos, mostly cr's

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