Looking for fork spring upgrade for 1978 GS750.

[Guest]

I want to rebuild my front end with stiffer progressive type springs. I’m having a hard time determining what will fit my model. It’s The one with spoked wheels and single disc. Any recommendations?

[Boriqua]

I can not speak highly enough about my straight rate sonic springs. I know you posted you are looking for progressive but contact sonic springs just to have a word. My suspension feels better than new.

[dorkburger]

Agreed with Boriqua. Plus Rich Desmond from Sonic is a regular here and extremely helpful with set up recommendations.
i just put a second hand set of Sonic springs and Race Tech cartridge emulators in mine, but have yet to do any real riding on them. After a quick initial ride during last weeks warm weather it seems much improved though.

[Steve]

I have had Progressive (brand) springs and Sonic (straight-rate) springs. Sonic is FAR better.

Take a look at the Sonic Springs rate calculator, then order those springs and some 10w fork oil, you will be very pleased with the results.

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[afraziaaaa]

Thanks for the suggestions. I did look on the sonic website but wasn’t sure about fitment for my bike because I saw gs750e and gs750l springs and I am pretty sure I have a B model. I suppose I can call.

[Boriqua]

There is contact form or email on the site and he is very responsive. They also delivered Blazing fast once I ordered.

[afraziaaaa]

Got it sorted with a set of the 1kg springs. Thanks all!

[hannibal]

If your bike is a 78 model, its a GS750C. The 77 model is a GS750B.

[afraziaaaa]

If your bike is a 78 model, its a GS750C. The 77 model is a GS750B.

Thanks. Good to know!

[Steve]

Since you are in "learning mode", you should be aware that the letter at the end is Suzuki's designation for the model year, but there are also letters for the model, so it can get confusing.

I don't know if it started in '78 or '79, but there was an upscale 750 that had the alloy wheels, double disc brakes on the front and a few other things, it was the 750E. If it was available in '78, the B would be added to the end and the proper designation would be GS750EB. If it were a '79, it would be a GS750EN.

Since the year designations were not necessarily sequential, it got interesting at time.
1976 - A
1977 - B
1978 - C
1979 - N
1980 - T
1981 - X
1982 - X
1983 - D
1984 - E
1985 - F

It's not quite as bad as Harley's alphabet soup, but it's possible to get a few letters there on a GS.

For more information on what bike was available what year, click HERE.

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