• 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.

1978 UK GS1000 - 530 conversion

Himble

Himble

Forum Apprentice
Hi folks,
A fellow club member with the abovementioned bike would like to convert from 630 to 530 without changing final drive ratio.
Can someone help please. My friend is not computer savvy, hence the request.
 
Move up 3 teeth on the front sprocket then calculate how many teeth needed in the rear to keep the ratio stock. Failing that, the answer is in the archives since this is a common question.
 
Yes, 3 teeth on the front (18) will make the rear a 50T. That will keep the stock ratio as close as you can get (within a a couple of 1/100s while allowing for the proper diameter sprockets. If you're searching for proper fitting sprockets use the GS650E for reference. It has the same splines up front and same fitment in the rear as your GS1000 and you'll need the 6mm spacer for the front sprocket. Chain if I remember correctly ended up at 116 links, I just ordered a 120 and cut it as needed.
 
Himble said:
Thanks Ed, will check the archives.
Click to expand...

Andy,

630 chain means 6/8" between links and 3/8" width
530 chain means 5/8" between links and 3/8" width

page 1-4 of the factory manual (free download on basscliff's website) states the final drive is 15/42 (2.80 ratio)

Move up 3T to 18 front so the rear needed is 18 x 2.8 = 50.4, so round down to 50 just as Sandy states.

The stock chain is 96 links x 6/8" per link = 72" long

72" / (5/8) = 115.2 links, so move up to 116 for the new 530 chain.
 
Many thanks Sandy and Ed, greatly appreciated! I'll onpass your recommendations to my mate!
 
You must log in or register to reply here.
Back
Top