Rear tires extremely close to rubbing on both sides.

[hillsy]

None of this seemed to happen before I put the new chain and sprockets on, but I counted the links on the new chain versus old chain, and it is the same. Even accounting for some stretch, it shouldn't be that extreme, should it?

BTW - are the new sprockets the same size as the old ones? Larger sprockets will shorten the chainline and move the wheel forward more (hence increasing your problem).

[technostructural]

BTW - are the new sprockets the same size as the old ones? Larger sprockets will shorten the chainline and move the wheel forward more (hence increasing your problem).

Yeah, they're the same size! I know... I thought of that too. I've been scratching my head about this a lot.

[hillsy]

Your new chain is probably "tighter" than your old worn out one so it will be shorter for the same amount of links.

Did the chain come with extra links? You might be able to put another link in and get the wheel closer to the rear of the swingarm.

[technostructural]

Your new chain is probably "tighter" than your old worn out one so it will be shorter for the same amount of links.

Did the chain come with extra links? You might be able to put another link in and get the wheel closer to the rear of the swingarm.

It did come with a couple of extra links, but I don't feel entirely confident that I could install them properly. From what I've been reading, people mostly just use 2 (or sometimes more) master links. That seems a little bit sketchy to me. The chain is definitely shorter than the old, and I know that this is usual from stretching, but it is significantly shorter -- so much so that the wheel is obviously pushed so far forward that it rubs on the chain guard and torque rod.

I normally don't cheap out on things, but having a basically brand new chain (10kms?) and having to buy another one simply because it is one link too short is kind of painful.

[Gorminrider]

Google anybody?
Hard to find but Bridgestone makes a BT110/90-17 rear and a 110/80-17 front
thevisorshop.com
Looks like motorcycle-superstore.com sells an IRC tire that fits: IRC RS310

IRC RS10 is also here at americanmototire, if they ship to Canada

http://www.americanmototire.com/catalog/index.php?manufacturers_id=681&osCsid=08b80b3ea534dbe48c9971caedd5dcae

they seem to have MANY odd sizes

But I like Hillsy's idea about the chain..I'd feel better about a new one but I would look to it first.

(for what it's worth,I have 120/90x 17s on my really-similar 81 400T albeit with cast rims, and they are a tad big but not near so close as pictured.)