Weight Threshold: Outback Motortek does not recommend more than 12kg total weight on each side of the racks (and 8kg for the rear rack).
Model/Style: All OM racks Mosko sells are Asymmetrical and Standard frame, except for the Honda CRF 250 (it's symmetrical). If you looking for a symmetrical rack or the X-Frame, checkout Outback Motortek site.