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Re:250mm wide tire kit question
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TOPIC: Re:250mm wide tire kit question
#681288
roofcrash (User)
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Re:250mm wide tire kit question 4 Years, 3 Months ago  
The rims I wanted to order have the rear wheel at 18x8.5 and I picked the Avon 250/40 R18 AV72 Cobra Rear Tire.

I talked with thunderbike but their modified swingarm with echange will accept only up to 18x8 rims and 240 tire. my question, do I still can fit a rim .5 inches wider and the 250 tire? should I take the risk ? I think I should. if its not gonna work I guess I will have to modify the swingarm myself. But I might be lucky and not have to make any modifications.

u guys have any suggestions ? thanks
 
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Last Edit: 2013/09/03 10:37 By roofcrash.
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#681388
USAFretired (User)
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Re:250mm wide tire kit question 4 Years, 3 Months ago  
If Thunderbike said 8 then 8.5 will not work is my guess. Did you ask them to verify?

What might seem like a small mod needed can turn into a huge mod so be careful on what you select.
 
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Last Edit: 2013/09/03 12:16 By USAFretired.
 
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#681408
Dchopper73 (User)
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Gender: Male dennis.lombard1 dchoppers73 Location: Western NY Birthdate: 1973-08-30
Re:250mm wide tire kit question 4 Years, 3 Months ago  
USAFretired wrote:
If Thunderbike said 8 then 8.5 will not work is my guess. Did you ask them to verify?

What might seem like a small mod needed can turn into a huge mod so be careful on what you select.


+1 on that! Putting the Raider rear wheel on my bike turned into quite the project. I ended up with 3/8" clearance from the belt to the tire. Cant go ANY wider than the 210 that I put on there.
 
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#681498
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Re:250mm wide tire kit question 4 Years, 3 Months ago  
Dchopper73 wrote:
+1 on that! Putting the Raider rear wheel on my bike turned into quite the project. I ended up with 3/8" clearance from the belt to the tire. Cant go ANY wider than the 210 that I put on there.

I sent you a pm, not sure if you got it.
 
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#683808
roofcrash (User)
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Re:250mm wide tire kit question 4 Years, 3 Months ago  
waiting on a shipping qoute from BMS choppers
 
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Last Edit: 2013/09/14 07:14 By roofcrash.
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#689849
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Re:250mm wide tire kit question 4 Years, 2 Months ago  
they must be very busy, very hard to get BMS answer emails. I'll give them a call anytime soon.
 
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#691539
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Re:250mm wide tire kit question 4 Years, 2 Months ago  
BMS completed the 250 mod swingarm. I had to ship it to a US address and then ship it to Europe thru a container to avoid outrageous custom fees. will take about 2 months to get here.
 
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Last Edit: 2013/09/28 05:04 By roofcrash.
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#701046
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Re:250mm wide tire kit question 4 Years, 1 Month ago  
New to the forum, but not to the 250 tire on a Roadstar. You can run a 250mm tire in the stock swingarm as long as you are willing to modify several components.
First you have to detab the swingarm, remove all belt shield and brake stay supports. You need to obtain your HD rim and bearing set up (1" axle) and then grab a Softail 70 tooth 20mm pulley and a HD brake rotor as well as a rear brake caliper and support for a hardtail '84-99. The inner face of the mounting area of the pulley will have to be machined to allow the inner edge of the belt to run approximately 3/16" of the outermost edge of the 250 tire. I suggest you hold off doing that until you space the wheel in the swingarm.

Secondly you need to obtain BMS's front sprocket offset adaptor for your year of Roadstar, you will need to make special sized axle spacers to give you a centered rim, which should allow between 1/8"- 3/16" clearance of the rightside tire edge to the rightside of the swingarm. in doing this you will have 2 spacers on the right side of the axle, one between the bearing and the caliper carrier, and the carrier and the swingarm, leftside you will require 1 spacer between the swingarm and the leftside bearing.

Thirdly you need to purchase a 128 tooth 1 1/8" Falcon BDL carbonfibre belt and be prepared to rip it lengthwise down to 20mm on a band saw with use of a guide and some courage. It's not as tough as it sounds, I have done two... one that has 10,000 miles on it and a backup just incase!

Forthly is your fender, I run a fixed fender to swingarm setup, only a single up bobber. No passengers or bags with this setup. With some planning you could run a widened floating fender but it will have to stop short of the swingarms when the suspension travel is at its furthest point, since there is no clearance for the fender to pass between the swingarm and tire.


http://i149.photobucket.com/albums/s59/cqyqte/Strugis%20Stooge/IMGP0074copy.jpg
 
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Last Edit: 2013/10/23 18:25 By Cqyqte.
 
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#701116
Loco Gringo (Visitor)
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Re:250mm wide tire kit question 4 Years, 1 Month ago  
Cqyqte, your images are awesome. What a great group of guys you look like, and such a coveted life you seem to have my man. I cant say enuff about that photobucket.

And fwiw, this is my personal favorite. http://s149.photobucket.com/user/cqyqte/media/Strugis%20Stooge/sturgis053.jpg.html
 
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Last Edit: 2013/10/23 19:10 By .
 
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#702204
roofcrash (User)
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Re:250mm wide tire kit question 4 Years, 1 Month ago  
nice Cqyqte. what tire is that ? size, brand., thanks
 
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Last Edit: 2013/10/27 06:18 By roofcrash.
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