• Required reading for all forum users!!!

    Welcome!
    Register to access the full functionality of the GSResources forum. Until you register and activate your account you will not have full forum access, nor will you be able to post or reply to messages.

    A note to new registrants...
    All new forum registrations must be activated via email before you have full access to the forum.

    A Special Note about Email accounts!
    DO NOT SIGN UP USING hotmail, outlook, gmx, sbcglobal, att, bellsouth or email.com. They delete our forum signup emails.

    A note to old forum members...
    I receive numerous requests from people who can no longer log in because their accounts were deleted. As mentioned in the forum FAQ, user accounts are deleted if you haven't logged in for the past 6 months. If you can't log in, then create a new forum account. If you don't get an error message, then check your email account for an activation message. If you get a message stating that the email address is already in use, then your account still exists so follow the instructions in the forum FAQ for resetting your password.

    Have you forgotten your password or have a new email address? Then read the forum FAQ for details on how to reset it.

    Any email requests for "can't log in anymore" problems or "lost my password" problems will be deleted. Read the forum FAQ and follow the instructions there - that's what we have one for...

  • Returning Visitors

    If you are a returning visitor who never received your confirmation email, then odds are your email provider is blockinig emails from our server. The only thing that can be done to get around this is you will have to try creating another forum account using an email address from another domain.

    If you are a returning visitor to the forum and can't log in using your old forum name and password but used to be able to then chances are your account is deleted. Purges of the databases are done regularly. You will have to create a new forum account and you should be all set.

Rear end upgrade shopping list - '80 GS1000

  • Thread starter Thread starter 80GS1000
  • Start date Start date
8

80GS1000

Guest
Hi all-

I'm planning on upgrading the rear end of the '80 GS1000 to be able to accept wider, 160 section radial rubber for better handling. Any help would be much appreciated.

As part of this, from what I gather from searching, the shopping list goes like this:

1. A GS1100 swingarm, modified to be able to mount a brake torque arm on the bottom side.
2. A 4.5x17" rim, and its associated sprocket, cush drive, and brake rotor. I'm planning on using a 2003 Katana 600 rim to do this, like the one pictured below, with the tire upgraded to a Michelin Pilot Power. Do I need to get the Katana axle and bearings too, and will that axle fit the GS1100 swingarm? Or can I use the stock GS1000 axle and bearings on this wheel and the 1100 swingarm?

97_1_b.JPG

12_1.JPG

3. Since the new rear
sprocket is a 530, and to prevent the existing 630 chain from hitting the tire, the front sprocket will need to be changed to a 530 version as well, with a 6 mm spacer up front to get the new 530 chain to line up correctly. I'll keep the gearing ratio pretty close to stock at around 2.8. Is there a difference in the height of the cush drive between the Katana rear wheel and the GS rear wheel? If so, what kind of additional spacers do you need?
4. A Katana rear brake assembly(master cylinder, hose, caliper), its torque arm, and caliper hanger.
5. New rear shocks, some IKONs look rather nice.
6. Can I use the chain adjusters from the GS1000 on the GS1100 swingarm?
7. Is the swingarm pivot bolt the same diameter and length on the 1000 as the 1100?


What am I missing, completely off on, or not thinking of?

Thanks in advance.
 
Last edited:
If you're going to install a radial tire on the rear, you should swap the front rim to something that will take a radial also. I have heard, but not experienced personally, that mixing radials and bias ply tires on the same bike is not a good idea.

TR
 
If you're going to install a radial tire on the rear, you should swap the front rim to something that will take a radial also. I have heard, but not experienced personally, that mixing radials and bias ply tires on the same bike is not a good idea.

TR

Definately. The front end is being swapped out with a Gixxer front end.
 
Does anyone know if the Katana rear cush drive/sprocket carrier is the same size as the GS cush drive so that the chain will line up correctly with the front sprocket?

Will the Katana rear axle fit in the GS1100 swingarm?

Much obliged for any information. :) \\:D/
 
Back
Top