I use the 70 gal tote HDX tote from Home Depot - works great!
You can't use the lid as the folded handle bars hang on the outside and the bike overall is a bit higher than the top edge of the tote, but at least the it keeps the bike stable and the wheels make it much easier to load and unload in my SUV. I think it would work well in an RV, but it sounds like you plan to have it outside in the elements, so unless you can put them inside the RV, this may not help.
I got this idea from another members post on the Expand page. Thanks to them - you'll see pictures there too.
You can't use the lid as the folded handle bars hang on the outside and the bike overall is a bit higher than the top edge of the tote, but at least the it keeps the bike stable and the wheels make it much easier to load and unload in my SUV. I think it would work well in an RV, but it sounds like you plan to have it outside in the elements, so unless you can put them inside the RV, this may not help.
I got this idea from another members post on the Expand page. Thanks to them - you'll see pictures there too.