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Franken Viffer Spring Rates


Guest lorenzo

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Guest lorenzo

I've pretty much got to the end of my build with my frankenviffer, it's an early 800 but with a bit of weight lost on it, about 10lbs or so from the front, and it's running on a set of stock 929 forks. I've been trying to set up the static sag recently, aiming for about 20-25mm static and then another drop of about 10mm when I jump on board. I'm struggling to get any sort of decent number for the unladen sag, with the preload on max I'm getting about 34mm, which is a bit more than I'd like ideally. Has anybody had a proffesional look at their tweaked front ends, and what sort of spring rates were fited? Also, does anybody know what the stock spring rate on a VFR and on a cbr is, just for comparison?

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Stock rates on a 5th gen are .74 front and 15.3kg rear andthe 929 has the same rear rate, but I'm not sure what the fronts are. Check the Race Tech web site, it list stock numbers! :fing02:

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