Stock Performance chart???

[mvalenti]

Looking for a stock performance chart that shows top speed per gear, 1980 GS850... Anyone know of one that exists?

[Steve]

You get about 14 mph per 1000 rpm in top gear.

With a redline of 9000, you have a THEORETICAL top speed of 126 mph.

Your actual top speed will likely be less, probably more like 110-115.

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[mvalenti]

Thanks Steve, Unfortunately, I do not have a tach. I was looking for something that used to get published in the old Cycle World magazines with the redline speed per gear. I looked down after pulling away strong from a stop and coming out of second I was at about 43mph, around 54 coming out of third (still pulling hard). I slowed back to 45 as it was the posted speed..

[Steve]

Thanks Steve, Unfortunately, I do not have a tach. I was looking for something that used to get published in the old Cycle World magazines with the redline speed per gear.

OK, I still have the test that included the '79 850, so I will try to find it and scan it this evening.

It was the "Shaft-Drive Shootout", I think it was the June, 1979 issue of Cycle magazine.

EDIT: Oops, it was Motorcyclist, not Cycle.

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[mvalenti]

Shweet! I just saw a sheet on the gs650G 81', and 1st 46mph, 2nd 67mph, 3rd 86mph, 4th 106mph, 5th 123mph. I assume this is theoretical @ redline.

[isleoman]

Shweet! I just saw a sheet on the gs650G 81', and 1st 46mph, 2nd 67mph, 3rd 86mph, 4th 106mph, 5th 123mph. I assume this is theoretical @ redline.

There's a lot of hills in Boston, with a following wind I could see you braking out of the theoretical, possibly moving into the astrophysical. Try Heartbreak hill when they aren't running

[Steve]

Shweet! I just saw a sheet on the gs650G 81', and 1st 46mph, 2nd 67mph, 3rd 86mph, 4th 106mph, 5th 123mph. I assume this is theoretical @ redline.

Those may be correct, but I see in your post that they are for a SIX fifty, not an EIGHT fifty.

Regardless, they are remarkably similar.

Anyway, here is the page that lists the speeds in the test I mentioned earlier. Because this was a comparison test, not an individual bike evaluation, they did not get as detailed with all the graphs like you mentioned, they just listed the numbers.



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[mvalenti]

850 did purdy well against the big bikes. And now I have performance marks to achieve......