Nameless wrote:Is it possible to get a heavier pair for a yaris? I have a bike rack ant it's just a bit too heavy
You would have to compair your present struts with a more robust pair. I doubt very much however, that even a stronger pair would suffice. If you could find any at all, then I would bet that the spring force, if sufficient to lift a bicycle and/or carrier, would be too great to be convenient when opening and closing the hatch when not under load.
These things are balanced to provide the best trade off between resistance and lift. You can't have the best of both worlds in all circumstances, unless of course you change the vehicle's rear hatch design altogether. This might include a motorized raise/drop system instead of a hydraulic-spring type.