Will these newer rotors fit my older GS?

[mkaczmarek]

I have a 1979 GS1000E (this is the one with the solid dual front rotors and single solid rear rotor)

I was thinking of upgrading my rotors and stumbled across these which also happen to be in Canada (lower cost to ship).

Can anyone tell me if they will fit my bike without any mods, just as a direct replacement to the existing ones.

http://cgi.ebay.ca/83-Suzuki-GS-gsx-750-front-rotors_W0QQitemZ4654042665QQcategoryZ10066QQrdZ1QQcmdZViewItem

http://cgi.ebay.ca/83-Suzuki-GS-gsx-750-rear-rotor_W0QQitemZ4654044107QQcategoryZ10066QQrdZ1QQcmdZViewItem

If not, let me know what I should be on the lookout for...again, I would prefer a direct replacement that will work with my calipers, unless theres a "much better" combination of rotors/calipers that would be worth looking into as well...

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1979 GS1000E

"NEVER MESS WITH A GS"
"The less you know, the more you believe."
"We thought that we had the answers, it was the questions we had wrong."

[duaneage]

The front should work and work much better. The rear might be ok as well.

[mkaczmarek]

What minimum rotor thickness should I aim for. My Service manual states 6mm and under for the front/rear rotors requires new rotors, I guess this would apply to the disk upgrade as well since calipers aren't being touched?

Currently my fronts are 5mm each (exactly) and the rear is 7mm, all look excellent, evenly worn, no grooves etc. I guess fronts need replacing regardless right?

[Jackrp]

[QUOTE=mkaczmarek]I have a 1979 GS1000E (this is the one with the solid dual front rotors and single solid rear rotor)

I was thinking of upgrading my rotors and stumbled across these which also happen to be in Canada (lower cost to ship).

Can anyone tell me if they will fit my bike without any mods, just as a direct replacement to the existing ones.

http://cgi.ebay.ca/83-Suzuki-GS-gsx-750-front-rotors_W0QQitemZ4654042665QQcategoryZ10066QQrdZ1QQcmdZViewItem

http://cgi.ebay.ca/83-Suzuki-GS-gsx-750-rear-rotor_W0QQitemZ4654044107QQcategoryZ10066QQrdZ1QQcmdZViewItem

If not, let me know what I should be on the lookout for...again, I would prefer a direct replacement that will work with my calipers, unless theres a "much better" combination of rotors/calipers that would be worth looking into as well...

==================================================
1979 GS1000E




I have a 1978 GS1000 and I put those type front and rear disks on it, they bolt right up, Back works like a champ, I also put 1980 calipers with galpher brake lines for a really tight feel. If you ebay calipers, remember, they will probly have to be cleaned and rebuilt, and be very careful as most of the caliper carriers on Ebay are for L models and will not work on an E or visa versa. E model carriers are more flat and squared off at the mounting holes for the mounting to the fork.( I learned this the expensive way) and Suzuki only sells new left hand carriers, rights are no longer made.So I have a 1980 1978 GS1000 front and rear brake system....*************@@@@@@it keeps saying message to short,.

[duaneage]

What minimum rotor thickness should I aim for. My Service manual states 6mm and under for the front/rear rotors requires new rotors, I guess this would apply to the disk upgrade as well since calipers aren't being touched?

Currently my fronts are 5mm each (exactly) and the rear is 7mm, all look excellent, evenly worn, no grooves etc. I guess fronts need replacing regardless right?

Rotor specifies 4.5 minimum thickness and it is stamped right on the disk. The solid rotors may be different but the slotted ones are all 4.5mm/min. ALmost ALL rotors I have ever seen are between 4.9 and 5.15
The rear is thicker, I think the minimum is 6mm on that one.

[mkaczmarek]

Rotor specifies 4.5 minimum thickness and it is stamped right on the disk.

Yeah, I was referring to the Suzuki Factory Service Manual specifications...but I wanted to double check as I thought that there may be differences between the solids and the slotted ones...I guess there is.

I asked the eBay seller and he basically said the fronts are 200 thousands of an inch and the rear is 275 thousands of an inch...which according to my math works to about 5mm front and 6mm rear...I guess I'll pass on those for now, as they're at the limit as is, and any "turning" would lower those numbers...