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August 31st, 2016, 10:03 AM   #1
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I Ride: '11 FS570, '12 RSV4 Factory, '01 MH900e, '03 YZ250F, '77 CB650, '01 CRF150, Thumpstar
5" rim conversion on OEM FS570 hub

Howdy Folks,

I've got a 2011 FS570, and I'd like to move to a 5" rim. Bunches of folks here just buy a whole new wheel, and I'd rather avoid that expenditure to ease approval by the wifey.

My theory is that if I buy the 5" Excel rim, (PN ENJ412N or EMK422N are 32 and 36 hole, respectively) that I could undo the current 4.25" rim, and lace the new rim using the same spokes and nipples.

Can anyone think of why this wouldn't work? The bike certainly has the clearance along the chain and drive for it. I would be saving the cost of the spokes, nipples, hubs, and retaining the OEM cush drive. Though I hear there is much skepticism as to whether that's of any value.

If I priced this out right, it's under $300 and maintain the same quality as OEM, rather than the $600 for a Warp 9 spare wheel setup. -Which I really don't need.
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August 31st, 2016, 10:39 AM   #2
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I have an Oem 5" Behr non cush wheel I would sell you for $200 if interested. No disc , sprocket or spacers.
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August 31st, 2016, 11:01 AM   #3
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Thanks Pollo, I saw that posted in the marketplace. Tempting, but I'd like to stick with the OEM black rims. Yours is silver. Nothing personal, you know. I'm just a prissy b!tch.
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August 31st, 2016, 11:05 AM   #4
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I was thinking they might be black. I could never ride with mismatched wheels either.
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August 31st, 2016, 11:50 AM   #5
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Maybe you can use excel rim but the stock fs wheels are tubeless and excell is not and the tubeless strip will not fit/work in another wheel and even if it is black all wheels look slightly different one brand to another
Why do you want 5 inch just for the look of a fatter tyre?
I want 5 because for track tyres most of them only start from 160 wide and fit much better on a 5 inch rim for street use there are plenty good 150 wide tryes
Thanks from Petros67
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August 31st, 2016, 12:22 PM   #6
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I Ride: 2011 Husaberg FE570, 2007 Triumph Speed Triple, 2010 Kawasaki Kx450Sm
Got have a new spare 5" Behr with cush hub for sale but I am located in MN. I don't generally sell stuff online.

Only selling this because I dont even have a bike for it anymore...

I also have a extra sprocket support for it too.

https://minneapolis.craigslist.org/c...756805807.html
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August 31st, 2016, 03:06 PM   #7
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@HusaBELGfs570- You've hit the nail on the head. I bought this bike as a track beast, and the 4.25" rim isn't cutting it. I've got connections on Metzelers, and they do start at 160, which would be a very wrong contour on the current rim.

As I was digging around the interwebs after posting, I found the error in my OP. The OEM is a Behr sAXESS.

@LeDelmo- that is looking pretty good! Any idea what shipping to California might be? Did you do just what I am proposing? Place a 5" rim on an OEM hub? Or was this the original setup on your stolen (SORRY!!!) KTM?
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August 31st, 2016, 03:39 PM   #8
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I will check and see how much it would cost to ship to California. Its actually the factory part from KTM. But I don't think its Tubeless like I see some FS models having.

The bike was stolen with my dirt wheels on it. And I don't have the other wheels anymore.
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September 1st, 2016, 01:07 PM   #9
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I think you'd be better off buying a complete 5" wheel, and selling your 4.25", than trying to re-lace to the new rim.
It can be done, but there's things like making sure the spokes stay in the same place on the hub (if you're reusing the spokes).
Is the ID of the new rim, the same as your rim? What the offset (most spoked rear rims are offset to one side for proper centering.
Shipping isn't too bad on wheels either...without a tire, the boxes don't get too big, so it's purely a weight thing.
Good luck!
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September 2nd, 2016, 10:27 AM   #10
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@LeDelmo- Let me know if/when you get figures, I won't be offended if you find someone local first. The tubeless/not thing isn't a problem. Folks have published ways to seal them up.

Hey Roger, you definitely raise valid points. I've attended the University of Youtube and was instructed that prior to dismantling rims, measurements of the offset must be recorded and likely pictures of the lace pattern, so that it can be properly repeated. I'm going to do a bit more research on both the ID of the rim, which would affect spoke length, and the nipple penetration diameter and angle. I'm not sure if those are published figures, but someone has to have that info... somewhere!

I did some reading over at Supermotojunkies and Thumpertalk. Folks actually suggested that the offset may need to be adjusted a bit for chain clearance, and the chain guide modified to reduce the inner surface. I figure that if I'm going through the hassle of lacing, making some minor adjustments is doable, and I actually enjoy cutting crap apart.

Some quick measurements on the bike last night though, and I think I've only got about 1/2" clearance either side right now. The fit will be tight, but doable. I plan to mount the Metzeler Racetec SM, which I understand has far less rim overhang than would a DOT tire. This should minimize chain and/or swingarm rub from folks forcing street tires into this application. I think I'm going to get to ordering stuff soon, and keep my fingers crossed that it all works out.
Thanks from tourist
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