>>1991316Only good way is with a trailer, preferably a single wheel touring one. God I want a trailer. Or an XL tandem longtail conversion.
Rolling both of them and riding alongside works if the tires hold air.
I've done a variation on pic rel half a dozen times, and on a front rack. Broken a rack doing it. It's such a fuss and it rides awfully. Bikes are just bigger than you think and pointy. Don't do it.
It's better to just break it down some and strap it on the outside of a backpack. Either way is awful for any longer distance.
If you do insist on strapping a bike to a rack, wrap everything with noodles or bubble wrap or something so you can get it tight on the rack without scratching stuff.