CRF250R VS CRF450R REAR Wheels swap 1.85 vs 2.15

Marcop
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Flower Mound, TX US
Edited Date/Time 6/29/2020 2:48pm
fact, a 2007 CRF250R has a 19 x 1.85 rear wheel with a 100/90/19 tire.
a 2013+ crf450r has a 19 x 2.15 rear wheel with a 120/80/19 tire.

2 Questions i have

1st.... Can I SWAP a CRF450R 19 x 2.15 rim and tire 120/80/19 and put on a cr250r bike? without swapping any axles or anything? Just using my stock CRF250 parts. OR do I have to buy a new axle? will i have any issue?

i am NOT pro rider that jumps 10-40 ft in the air.. just a old guy that likes riding trails. :O)

2nd. can I swap my 100/90/19 and put it on a 19 x 2.15 in rim then put it on my crf250r? or do I need to get a 110/x/19 tire???

now, WHY am i asking this. to buy a new rear wheel is CRAZY prices (yes, I am a Cheap A$$). but some one is selling a CR450 set for CHEAP (with wheel and tire) i dont need to disc/sprocket. also the cost to buy a new rim (that is broken on my crf250r.. is going to cost a MINT to but a new rim, spokes, ture them up, put on the old tire and new tube..etc. that is why i am asking.. thanks for your time. can'wait to see what you all say.

and YES i am a cheap A$$, ha ha ha....



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krypto71
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6/29/2020 3:09pm
IMO, you can’t go wrong putting on the 2.15 and then get yourself a new 110/90 rear for your 250f!
AHarmon237
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6/29/2020 4:42pm Edited Date/Time 6/29/2020 4:43pm
The sprocket offset changed on the 2013+ CRF450s from previous years. I recall reading people getting hurt from the chain derailing or locking up in the sprocket due to the offset being different by a hair.
1
burn1986
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3303rd
6/29/2020 5:23pm Edited Date/Time 6/29/2020 5:24pm
I would get a 110x19 tire for your 250F. The bigger rear tire will weigh down your 250F and it won’t ride the same.
Marcop
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Flower Mound, TX US
6/29/2020 6:45pm
Thanks for all the post. All good Info. Guess I will have to try it. They are selling both rims and tires for
200. So I will buy a new axel and see when it does. Hope the offset it not off much. But please keep posting. I want to know what I am getting myself Into. Thanks again. I am
Reading all these post.

Just wish someone on here has done it before.

The Shop

wrc777
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6/30/2020 5:19am
It should not be hard to find a used pre-2013 450R wheelset for cheap. They are on ebay. Bonus points for a 2017 or older 450X/250X wheelset because they have 18x2.15 rear rims.
Marcop
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6/30/2020 6:07am Edited Date/Time 6/30/2020 6:08am
WOW!! look what i found.

https://motocrossactionmag.com/mxa-team-tested-crfstuff-2013-crf450-off…



https://www.vitalmx.com/forums/Moto-Related,20/Honda-wheel-compatibilit…

2/11/2019 11:32am
ti473 wrote:

That's correct, front is the same, rear sprocket offset is moved outboard by a few millimeters, which can be corrected by using a offset sprockets (CRFstuff used to make them but they were ridiculously expensive, especially for a wearable item) or a spacer and slightly longer sprocket bolts

STLSharky wrote:

how do you know this, and is there a source to help know this in future?
Dave

How do I know this? I've owned many Hondas and several wheelsets in the past. Honda wheelsets were compatible from 2002 to 2012 (450)/2013(250), when the 2013 450 generation frame came out is when they moved the chainline slightly outboard. It was a topic that was widely discussed at the time as many Honda owners were wondering if they could keep their old wheelsets. CRF stuff came out with that offset sprocket right away. I thought it was a good solution, better than the flanged spacer, but I think they were $150, a little steep for something that wears it quickly.
And vital is a great source for this kind of information

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nate1001
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Sellersville, PA US
6/30/2020 7:14am
You can use pre 2013 rear wheel on 2013+ bike with a spacer, but not the other way around. The spacer and offset sprocket move the chain away from the tire.To use 2013+ wheel on an older bike would need the hub shaved down.
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