cb360 with a 130 rear tire

[erock85]

So I've run into an issue on my build, I have a 3.5" rear rim and I mounted a 130 tire on it. I am wondering if there is anything that I can do successfully to eliminate this chain rub. Obviously I know a narrower tire will solve the issue and that will be listed as my last resort. I have a stock length 530 94L chain currently on the bike and the axle adjusters are as far forward as they can go, chain is tight, but allows the 3/4" flex as mentioned in the shop guide.
I have links I can add back to the chain, which I might do. The tire is not rubbing the swingarm but moving it back a link or two may be helpful

 

[xb33bsa]

put a smaller tire on,,that you did not see this ahead of time is amazing
adding links to the chain changes the offset,how ?

 

[teazer]

The tires and wheels are really too large for the bike but now you spent the cash it's hard to go back to appropriate sizes. The chain needs to be spaced to the left with offset sprockets or spacers under the sprockets at both ends - obviously.

 

[rockcitycafe]

could try a 520 chain conversion, but that's even more bux and headaches than swapping the tire

 

[erock85]

put a smaller tire on,,that you did not see this ahead of time is amazing
adding links to the chain changes the offset,how ?

Reading comprehension > you
I said as a last resort I will change the tire size to a 120. adding a link or two to the chain will move the tire back from with in the swing arm. Why am I retyping all of this. Basically I was wondering if there was something else that could be done that I have not entertained as an option.

The tires and wheels are really too large for the bike but now you spent the cash it's hard to go back to appropriate sizes. The chain needs to be spaced to the left with offset sprockets or spacers under the sprockets at both ends - obviously.

Yes, yes they are. Part of the conversion. I was not aware of offset sprockets. any more info on this? I don't think a spacer will work as the clip ring on the rear sprocket is a defined depth. Thanks for your help

could try a 520 chain conversion, but that's even more bux and headaches than swapping the tire

Thanks, i see how that might work. I will look into it as well

 

[jungalist]

+1 on offset sprockets, but i don't know if it should give you enough clearance as it looks like it's already rubbing your tire...

 

[erock85]

+1 on offset sprockets, but i don't know if it should give you enough clearance as it looks like it's already rubbing your tire...

Yeah, it is rubbing. My guess is that a 10mm offset would be where i need to be. However, now I cannot find an offset sprocket for my bike, hmmm.

 

[xb33bsa]

you cannot fit an offset front sprocket,securely, without a threaded output shaft with nut to hold it securely
the floating sprocket like on you're 360 does not lend itself well to an offset sprocket
you could shave the edge of the tire safely quite a bit,maybe enough to clear a 520 non o-ring chain
otherwise you could fab up an outboard bearing carrier and an extension shaft lashup like used on a dragbike
or you could do a jackshaft like one of those stretched thug bikes

 

[irk miller]

or you could do a jackshaft like one of those stretched thug bikes

Racing mowers use jack shafts too. LOL

Honestly, IMHO it's cheaper and easier to buy a narrower tire and try to recoup as much of your money as you can on Craigslist or eBay. Chalk it up as a failed experiment. No retrofit with the large wheel will look as good as no retrofit and the right size wheel. At least a narrower tire will shave a few oz's.

 

[erock85]

you cannot fit an offset front sprocket,securely, without a threaded output shaft with nut to hold it securely
the floating sprocket like on you're 360 does not lend itself well to an offset sprocket
you could shave the edge of the tire safely quite a bit,maybe enough to clear a 520 non o-ring chain
otherwise you could fab up an outboard bearing carrier and an extension shaft lashup like used on a dragbike
or you could do a jackshaft like one of those stretched thug bikes

Racing mowers use jack shafts too. LOL

Honestly, IMHO it's cheaper and easier to buy a narrower tire and try to recoup as much of your money as you can on Craigslist or eBay. Chalk it up as a failed experiment. No retrofit with the large wheel will look as good as no retrofit and the right size wheel. At least a narrower tire will shave a few oz's.

Thanks guys. Just hoping I could find a different solution. The tire wasn't expensive at all, it's just the whole remounting and all that. Narrower tire it is.
Thanks again