1) Will it fit and work on my “2009 Montague Swiss Bike LX”?
2) Where can I buy it, I can’t find it on Amazon or anywhere else?

Mike, Montague’s unique design allows me to take my bike anywhere in the world without question, and then to fly home without locating or moving a box around after I finish cycling between two airports. That’s worth the 8+ hours of dissembly and rebuild I need to do each time I go for a week or more of international touring. Also I can get the bike onto an intercity train in Europe as general luggage with only about 15 minutes of packing, which can be invaluable for European summer travel. While we all have different motivations, it likely isn’t worth the time and effort to pack a bike if you are flying domestic and can easily use a full sized box or are just trying to save a little bit of money on your ticket.

Andy, my Montague has flown on several dozen flights now, including small budget carriers in Europe. No gate agent has ever measured the bag. It is always weighed, but as long as I make sure to say that it is a bike and also that it is packed under standard suitcase size it goes through easily and without extra charge. The agent usually gives me a compliment on the packing then directs me to oversized after check in.

The front wheel comes off, but the back wheel stays on the frame with the disc brake rotor removed. I expect a certain amount of cosmetic damage from moving the bike around in a bag with minimal padding. To date that has been limited to paint scratches, but nothing else.

https://www.ebay.com/itm/256990204792?_skw=montague+bike+hummer&itmmeta=01JYVGX0XHD9KNBH7S8DQZSNBG&hash=item3bd5cf5378:g:iuEAAeSwtlpoXCIP&itmprp=enc%3AAQAKAAAA8FkggFvd1GGDu0w3yXCmi1fTcDQy%2BZSjY3yhhTEONN%2BMqKb%2BUF16NjjOh4OXqOp9Oip8igZHIS8tN7VLXVnDKS%2BrANWvu5rYfFvGvukzWNFp81ZK%2Fio8LQuNkO5r9WopRwhqIsOWeHmnKcu5Hukby776Pu2%2BpG%2FELbLko5XVmitcLUCPgJo9d6aV4U1Z5T24VJjhIera1jwu9WoyMtbd9NiKvhiH5DdptYuc7exTjZSuPMBEyIQnVABdNuz6AjHjL9U8olxtqT5UlgPqueenGjnWdGQxBg3UvRAvf%2BESVZeSO4%2FlcUFpCkNAKHsNFjoGYw%3D%3D%7Ctkp%3ABk9SR_CO9PD2ZQ

on a hybrid tyre:
28-622
700x28C
28×1 5/8 , 28x 1 1/4

the first figures relate to the rim, the width of the rim, and the diameter of the rim.

The last figure relates to the tyre in relation to the rim.
so, the tyre fits a rim that is made for a tyre that is referred to as 28″ in diameter , this is not usually its actual diameter.
and it fits a rim made for a tyre that has a nominal width of 1 5/8 or 1 1/8″.
if the figure is a decimal, then it is the actual width of the tyre when fitted.
the height or profile of the tyre can only be inferred in that the width is relative to the profile, however it will differ with different wheel sizes.

the 700 X 28C is essentially meaningless nowadays.

is this correct ?