Sometimes someone comes up with the answer to a question that should never have been asked; like this Iso Truss mountain bike frame.

I mean I guess it's a neat engineering feat but there are so many things wrong with this design...

• What happens when you leave a cup out in the rain? It fills up with water. on a wet day all of these tubes are suddenly great, big cups that will fill with water, mud, cow poop, dead slugs and anything else you ride through. Live in So Cal? Have no fear, your 2.75 lb frame will also soon weigh 4 or 5 when it fills with dust.
• How many times have you banged your legs against the tubes of your frame or fallen on your bike? Now imagine banging them against a cheese grater or falling on a thousand tiny serrated knives...
• Ever sit unexpectedly on your top tube? Right, these bike designers obviously have not either.

This is the kind of thing you buy and then hang on your wall or seal up in your time capsule so you can laugh about how silly people were 20 years ago when you dig it back up.