CB650R Rims on an 07 CB919? - Wrist Twisters
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post #1 of 6 Old 06-23-2020, 03:06 PM Thread Starter
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Talking CB650R Rims on an 07 CB919?

Hey guys and girls, this is my first post on this website after lurking for about 4 months.
I picked up my beloved 07 919 about 5 months ago and love it veeery much. But I can't stop thinking about modifications that would make it more my own style

I love the look of the new cb650r rims and think they would look sexy as on the 919... just wondering what you guys have to say about swapping from stock 919 rims to those?



Cheers!

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post #2 of 6 Old 06-24-2020, 08:24 AM
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Welcome to the best site for 919 information.

Sounds like an interesting swap, but will not be a bolt on project. Add to that the certainty that few have been crashed, meaning a salvage run is unlikely to produce any results, necessitating buying new. From the parts list the rear wheel assembly is $385.96 which does not include the sprocket cush drive or brake rotor. The front is worse: $558.78 plus $207.25 each for the brake rotors. Which brings another problem: they are 320mm diameter, not 296mm on the 919 which would require relocating the calipers. And no, the 919 rotors will not bolt on to the 650 front wheel: the bolt circle, number of fixing bolts, and hub I.D. are different. Then there are the inevitable minor things to be adapted, machined, replaced, etcetera.

Having done quite a few wheel swaps over several decades I have a unique perspective on this, and unless you have a reasonably equipped machine shop (lathe, mill, a goodly selection of tooling, rotary table, indexing head, bench grinder, TiG welder, PME, and lots of hand tools) and the knowledge to use them effectively you will have to farm it out, and that can get very expensive very quickly depending on how much work needs to be done.

In the vernacular of custom building: "You can make anything fit anything else with sufficient infusions of money!"

Good luck

Rob
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post #3 of 6 Old 06-24-2020, 09:13 AM Thread Starter
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Thanks for the info Rob! Definitely more involved than I was hoping :/

Do you know of any good / more common wheel swaps for the 919? I just want some lighter and frankly more stylish wheels to fit onto the bike!
Thanks for your reply!

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post #4 of 6 Old 06-24-2020, 10:41 AM
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From my research here I can say the most common swap is an F4i front wheel and a CBR900 '92 to '98 rear wheel which is almost a direct swap for the 919 wheel. Both are five spoke, but I have no information on the weight.

Hopefully someone who has done the swap will weigh in on the finer points.

Remember that in the tools menu is Advanced Search. An excellent way to find information you may need.

Have fun!

Rob

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post #5 of 6 Old 06-24-2020, 11:05 AM
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Pretty sure Rob meant F3 re the front, as the 4s were three spoke.
I don't know the details, but I think F3 rotors are needed, and I distinctly remember reading about special wheel spacer adaptors having to be made. I don't remember anything about having to shim the brake calipers, but that might also be necessary. Anyway, like Rob said use the Search feature. For sure there are detailed threads regarding all this.
As for the 900RR rear swap, my recollection is that the 900RR wheel will accept the 919 cush drive and I know for a fact that it will receive the 919 rotor.
Some have gone "smaller rotor", by using the 900 rotor, but this really opens a can of worms as the brake caliper has to be repositioned.
There's threads that include such info, and my memory is that it can't be done without having to relocate the welded slide tab on the swingarm.
Short story on the rear is, if one sticks with the 919 rotor, it's pure nuts and bolts with no adaptations needed.
The front is the challenge, noting there's been a real dirth F3 front wheels for some years now.

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post #6 of 6 Old 06-24-2020, 04:04 PM
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Quote:
Originally Posted by mcromo44 View Post
Pretty sure Rob meant F3 re the front, as the 4s were three spoke.
I don't know the details, but I think F3 rotors are needed, and I distinctly remember reading about special wheel spacer adaptors having to be made. I don't remember anything about having to shim the brake calipers, but that might also be necessary. Anyway, like Rob said use the Search feature. For sure there are detailed threads regarding all this.
As for the 900RR rear swap, my recollection is that the 900RR wheel will accept the 919 cush drive and I know for a fact that it will receive the 919 rotor.
Some have gone "smaller rotor", by using the 900 rotor, but this really opens a can of worms as the brake caliper has to be repositioned.
There's threads that include such info, and my memory is that it can't be done without having to relocate the welded slide tab on the swingarm.
Short story on the rear is, if one sticks with the 919 rotor, it's pure nuts and bolts with no adaptations needed.
The front is the challenge, noting there's been a real dirth F3 front wheels for some years now.
+1 on the Search feature. I've done this swap [both ends] and I'm pretty sure I posted about the weights of the wheels - not much difference if I remember correctly. The calipers on the 919 fork def needed some spacing to align with the disks mounted on the 6 spoke wheel, but then I went and swapped out the fork, disks and calipers....Now a WP fork, Metalgear disks and Brembo calipers.
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