Alright, noob to the forum... anyways, I have seriously considered buying a montague bike, but one of my biggest complaints is that they're made out of aluminum (32 lbs for one of these things). I want a montague bike that is made entirely out of carbon fiber, which means I am going to have to make it my self. There are some carbon fiber factories not too far from where I live, and I could buy from them. My only problem is with the quick release. How does the quick release work!?!?! I have searched the internet forever it seams like, and I can't figure out how the dang thing works. Could anybody post some sketches of what the quick release looks like on the inside? Does it use springs? What are the mechanics behind the quick release? I have no idea how the thing works, the best pictures of the quick releases I could find are some of these:
https://www.aliexpress.com/product-fm...olesalers.html
https://www.montaguebikes.com/unfoldi...ding-bike.html

a quick release in mechanical principles is an eccentric ..

the resemblance to the planetary orbit is there,
at some times of the year there is less distance to the central sun,
than 6 months later.

the eccentric of a QR, creates tension as it rotates.

It's very similar to a QR skewer on your wheel but the parts are a little beefier. That drawing in the second link pretty much says it all. There is a pipe inside the main tube that keeps it from being crushed when the QR skewer is tightened.

While I don't want to discourage you frome taking on a cool project, I don't think the Montague's weight has too much to do with the frame being made from aluminum instead of carbon. I've held a bare frame and they are pretty light. You aren't buying a $2500 (or more) mountain bike with full XTR. You're buying an $800 mountain bike and you are paying somewhat of a premium for a folding frame from a smaller company. I think if you took a Montague frame and put nothing but top-end parts on it you would have a bike that pretty close to a comperable high-end mountain bike -- and costs the same as one. I encourage anyone who disagrees with me to speak up!

heres an ALUMINUM 17.5 pound Montague Hummer....whats to complain about now?
https://www.flickr.com/photos/feliposphotos/5397210544/

One of my bikes is a paratrooper, most of the weight on those things would be from the low end parts that they ship with.

what happened to the other 15 lbs?

Thank you for helping me with my stupidity! (non-sarcastically)

Which parts would those be?

Every single one of them.

Buy the bike, sell off everything but the frame.

Go here:
https://weightweenies.starbike.com/
Look around and get some ideas for building it up.

Four and a half pounds came from the fork! Here's the least expensive mountian fork sold at PricePoint:
https://www.pricepoint.com/detail/183...-80mm-2010.htm
It is 5.45 lbs. The stock fork on the Montague probably weighs more. The rigid fork on CabezaShok's is listed at 550 grams (1.21 pounds).

And look at that seat.

Actually, i replaced my Paratrooper's 5.5 lb. shock-fork with a riggid chromoly fork made by Nashbar for around $50, its a suspension corrected fork...... I still need to buy a crankset to complete the bike, here it is: