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I've just read something interesting @ the f650.com forums: some guy would like to change his BMW F650GS' 5th gear to CS' one, because this way he could make a more economical highway cruising gear for his GS without compromising the usability of the lower ones (especially when offroad).
Someone just advised him just to change chain sprockets to make all the gears taller.
Someone else did some research and wrote that all the other gears are the same for the two models - so I can say that I can understand the asker. F650s' first gear is tall enough without any change.
We have a Hyosung GV250 too, and I think that bike could do very fine with a taller overall ratio (it's not just it could use a taller 5th but has very short lower gears too).
So I'm curious how do GS500's ratios feel. It may or may not be a good idea to change sprockets.
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