
Here are a few placesβ¦ all from a Google search for β145R13 tireβ
www.universaltire.com/145r13-firestone-f560-blackwall.html
www.onlyoldiesgarage.com/xcart/product.php?productid=16759
www.collectorsautosupply.com
www.premiertire.com/COWYONLY.htm [they only sell in Colorado and Wyomingβ¦go figure???]
Sidecar wheel source
http://www.tirefactory.net/multimilecentered.html
@ WinginCamera - Am I missing something? I'm not seeing any wheels at your Tire Factory link, just tires.
Sears stocks a 155/80-13. I have one waiting installation. Iprobably "carefully" analyzed fit before I bought it, though I can"t any longer be certain. (keeping my fingers crossed, install should be tried soon)
@davids - According to a tire size calculator I have, a 155/80R13 should be about .4" wider section width and .6" taller overall diameter. Now those #s are nominal and can vary depending on manufacturer and construction but I've found them to be a decent way to compare sizes.
When thinking about the size difference remember to divide that number by 2 and then add to each side/top and bottom. That means the .4" wider will be .2" on the inside and .2" on the outside. Same for height. Your sidecar will sit .3" higher and be .3" closer to the fender on top.
Also, I mention earlier about the 4 on 4" pattern being used almost exclusively on trailers in the U.S. That creates another problem as trailer wheels are 13x5 and have a zero offset and the original Progressive wheel on the CSC is 13x5.5 and has a +15mm offset. What that all means is the inboard edge of a 13x5 trailer wheel will 10mm 21mm-ish further inboard outboard and the outside edge will be 21mm 10mm-ish further inboard outboard. On the outside, that could be tight, but IIRC it's already tight on the inside so more room could be helpful.
Edit: fixed my wheel spacing math. I had it backwards

tvking63 - 6/16/2012 11:51 PM
@ WinginCamera - Am I missing something? I'm not seeing any wheels at your Tire Factory link, just tires.
No, your not missing anything. I had copied this info sometime ago and forgot it only had to do with tires only. I need to pay more attention.
We have a sidecar just like yours and the guy we got it from said it was a California Champion Sidecar. If anyone knows what it really is let us know. We have ours hooked to a 2004 Harley Sportster 883 XL. The rear top mount came loose from the frame a few days ago and got lost on the highway. It's the part that mounts to the frame of the motorcycle. Do you have any pictures of the rear top mount that mounts to the frame ? If so can you post them ?

sick055 - 7/10/2012 7:48 PM We have a sidecar just like yours and the guy we got it from said it was a California Champion Sidecar. If anyone knows what it really is let us know. We have ours hooked to a 2004 Harley Sportster 883 XL. The rear top mount came loose from the frame a few days ago and got lost on the highway. It's the part that mounts to the frame of the motorcycle. Do you have any pictures of the rear top mount that mounts to the frame ? If so can you post them ?
California and Champion are two different companies, although Champion is located in California. The upper mount for you bike would be altogether different from my Goldwing. Perhaps you could post a photo of your bike and of the spot where the mount is missing. Do you still have the arm that would have been attached to the mount?
We make an upper rear mount for this bike that replaces the shock bolt. Our mount will work with a Champion sidecar no problem but to work with a California sidecar would require one additional part. The California sidecar uses a 3/8 inch bolt (9/16 wrench) while the Champion runs a 1/2 inch bolt (3/4 wrench) We also have triple tree's to lower the steering effort.
Jay G
DMC sidecars
www.dmcsidecars.com
866-638-1793
re: CSC111 sidecar tire today I had Sears mount the 155/80R13 I bought from them recently. installed the tire/wheel and found no clearance problems, subsequent ride showed no issues. Tire is a Guardsman plus P155/80R13. on sale is was $37 incl. taxes, install was no charge. I did not have them balance it, I am going to use Dyna Beads. Sears said they are going to stock these cause some small car uses this size.
The 145 fits under the fender much better but is hard to find. On some sidecars we have found to run the 155 you must redrill the sidecar body mounts in order to move the body over so that the tire does not rub.
Jay G
DMC sidecars
www,dmcsidecars.com
866-638-1793
That's good tip Jay. I don't know if I'd have thought to move the body instead of spacing the wheel. I assume the tire rubs on the inside and you move the body closer to the bike?
Yes however you do not want to move it to far as the tire ends up not being covered by the sidecar body. For a while California was using a fender lip like you would have on a Jeep.
I will be at the national rally if any one needs advice. We are also running a sale at the rally of 10% off of sidecars.
Jay G
DMC sidecars
www.dmcsidecars.com
866-638-1793
Jay, do you mean an add-on rubber/plastic sort of thing? I don't recall seeing anything like that on a sidecar.
Yes, California for a while was adding a rubber or plasic fender lip, It was ugly and most are now missing.
Jay G
DMC sidecars
www.dmcsidecars.com
866-638-1793
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