I do not knnow about most of you but backinng out of my garage is nearly inpossible due to slope
so I looked a all possibilities in the end a bike dolly made the most sense buying one is also near impossible with a rear tire of 240 dimension and some are rather flimsy looking so I made one strong enough for 1200 lbs the whole enchilada $158 CAD now I run in onto the dolly unlock the wheels spin around and out I go straight out .
You could mount a dyno roller at the back and front of it, run a large rubber band from one roller to the other so that the rear tire will turn the front tire & when it's too cold to ride outside you could ride in your garage............. remember to open the door though - carbon monoxide might make you fall off the rollers!!!