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GS850 stock fork diameter

RustyTank

Forum Mentor
Past Site Supporter
Howdy folks. I just want to confirm that the stock fork diameter on a 1979 GS850G is 37mm. Is that correct?
 
Not sure about the 750s, but from 650 on down, they are 35mm. The 850 and up are 37mm, except for the 1100GK.

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Is the 850 the same as the smaller bikes? Or is it the same as the GS1000?

Same diam as the Thou, but the 850 legs are longer by about 3/4". I went that way and built a good set of thou dual-disc legs out of spares I found. The shorter legs of the Thou, when fitted to the 850 nicely compensated for the extra weight of the fairing, by reducing the trail by a couple of millimetres. There's only one slight problem and that's clearance - I had to relocate the horns as under heavy braking the fender touched them. No biggie.
It's still a work in progress - if I don't sort out the air suspension to my liking by linking the tubes I'll be getting in touch with Sonic for a pair of new springs so I can get the full sprung length. When the air is working right, I like the ride.
 
The older 750 is 35mm the newer ones are 37mm. All the big bikes are 37mm apart from the GK which is 41mm :)
 
Dan, why is it that now, when I read your posts, they appear with a British accent? :-k

Yeah, it was nice meeting you at Brown County. :encouragement:

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