K8 GSXR wheel and 180 tire in factory swingarm!

[hjfisk]

I am running a 160 rear on my 80 1100e, I used the rear wheel off a 97 600 Bandit , caliper and cush drive off a 89 gs500e, and had to custom make my caliper mounting arm, set it up with a 530 chain conversion,15/47 pulls like a train, spacers on the rear wheel were a combination of the gs1100 and the bandits just shuffled around. I used the stock Gs11 aluminum swing arm. Now I am looking for a decent set of rear shocks

[Darkstang]

Ok, back from the shop. Posplayr is right, I am about 3/16 off. No major problem right now though. I can either machine some new spacers or possibly add 3/16 to the caliper side. This would move the sprocket more to the outboard side by 3/32 or about .090". I still could machine some off the face of the cush drive to compensate, but untill I get a chain and offset sprocket, I will hold where I am at.

I am going to get the frontend installed and in before I make any changes right now to the rear.

It is currently closer to the caliper/brake side. It is between 4-5 mm offset.

It will not be a track bike and that may not effect it that much, but while I have the chance I will get it as close as I can.

Ken

[posplayr]

Ok, back from the shop. Posplayr is right, I am about 3/16 off. No major problem right now though. I can either machine some new spacers or possibly add 3/16 to the caliper side. This would move the sprocket more to the outboard side by 3/32 or about .090". I still could machine some off the face of the cush drive to compensate, but untill I get a chain and offset sprocket, I will hold where I am at.

I am going to get the frontend installed and in before I make any changes right now to the rear.

It is currently closer to the caliper/brake side. It is between 4-5 mm offset.

It will not be a track bike and that may not effect it that much, but while I have the chance I will get it as close as I can.

Ken

If you go back to those steps,

I would do the following:

1. I would put your straight edge across the tire or rim(rim is better) and measure the distance to the inside of both fork legs. Once from one side and then the other. Stock GS swinger is on center and both sides should be equal. Not so with some others like Bandit arm. This insures wheel is centered in swingam.
2. Do a quick string alignment to get the rear wheel aligned with the front. You are adjusting your rear axle adjusters to do this.
3. Check the chain offset. It is pretty easy using a straight edge under the rear sprocket running against the wheel/tire and just next to the chain.

I went around in circles for a few laps with Katman trying to figure out spacer and offsets between Bandit and GS; I used scaled powerpoint and a spreadsheet.

Anyway your previous adjustments are now off so you should redo steps #2 and #3 after you get the wheel in the center of the swingarm. 1-2 mm is probably fine. Some Busa's are way off when they put huge wheels in the back. The bike will just be more neutral if it is close to center.
Glad you found it out now rather than later.