Originally Posted by BrianBrave
Just re-installing the stock idler pulley and keeping the 185mm and the smaller WP pulley. This would keep the ratio's for all the other accessories the same (including the supercharger) just reducing the ratio (and thus RPM) of the idler pulley to within the bearing range.
I imagine they decided on a smaller idler pulley so to keep the stock belt. (probable some marketing idea)
o.k., I did not realize that. Then I'm putting my stock idler back on and finding a different belt, something out there should be close. Better than waiting for a failure. ( although I don't know what the stock idler bearing is rated for ) I just imagine amg put a good one in there. Thanks.