We have 2 BFs the NWT will fold in about 10 seconds and go in the back of our car, To go in the suitcase (becomes a trailer) it takes longer and some disassembly, depends on how carefull you are. I have 1.75 tires so I can go on or off road, so it is not fast as my road bike, but feels more like my MtBike. The Airglide in the picture, doesn't fold up but comes apart easy for suitcase packing. Big wheel small wheel feel about the same if you have same diamater tires. We use the BFs for long trips and usually the big wheels for all regular rides, but many of our BF friends use only their BF.