Concept Bikes & Bike Innovation - for better or worse

https://www.youtube.com/watch?v=sRfpjmH2qLQ

No.

http://www.knoed.com/blog/saddle-lock/

http://i.imgur.com/KFX7pD9.jpg

Bicycle Bottle System Condenses Humidity From Air Into Drinkable Water

He predicts that areas with higher levels of humidity could produce as much as half a liter per hour

So about half the long term requirement for somebody on a brisk ride in a hot and humid environment :-)

yeah needs embedding into a dynamo disc wheel for more powerz and area

lady pedals

http://www.telegraph.co.uk/men/active/recreational-cycling/11258405/Tannus-tyres-is-this-the-end-of-the-road-for-bike-punctures.html

Ouch.

Can you imaging that crank arm getting in the way?

Huh. Tempted for the pub bike.

http://www.cyclingweekly.co.uk/news/latest-news/german-designers-claim-reinvented-bike-147475

@mdcc_tester What say you, Captain Engineer?

What say you, Captain Engineer?

Obvious bullshit. Also, if you really could recover free energy from non-tangent crank shaft loads, why waste your time with bicycles when you could become an overnight billionaire by selling the idea to makers of reciprocating internal combustion engines.

Möve Bikes? I call gullshit.

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I can imagine all the forces the air in my tyre dampens when I narrowly avoid a pinch flat going directly into 1-2 spokes at a time. Would be awesome fun to see them fitted to carbon wheels of bikes given to MPs.

motorlesscycle. for fans of motorcycling who are concerned about environment. not a poster material but...

and candleholder made out of drop bars. would love to have one.

Saw that ages ago. Really should go for it.

Hey guys - I didn't know where to post this, but I assumed that this would probably be the best place.

Does anyone think it would be possible to build a hydraulic drive bike with two wheel drive? I was think that hydraulic drive probably has a ton of benefits - can rout the cables anywhere (opening up a load of chassis design steps), you could put hydraulic brakes into the drive, and I imagine it'd be really quiet.

Thing is, I assume it'd be heavier and less efficient, and when it fails, it'd make a huge mess. But are the negatives really that bad?

I also imagine a two wheel drive bike would come in useful for things like trial biking and singletrack.

Thoughts from any engineers?

Though according to google they look dumb.

Typical motor and pump efficiencies are around 85% each, making the pump-motor combination somewhere around 72%, and small bore pipe loss would drive this lower still. M.I.T. suggest a measured efficiency as low as 60% (http://dspace.mit.edu/bitstream/handle/1721.1/36699/77549265.pdf?sequence=1)

Compare this with a chain and derailleur efficiency of 93 - 98%. Even if your design had a similar overall weight, you (the rider) would need to provide around 30% more power to achieve a similar performance.

It's the sort of thing you might do to prove it can be done, or if styling takes priority over engineering...

(opening up a load of chassis design steps)

As it turns out, chassis design doesn't need opening up. The basic 11-tube frame and fork is really hard to beat on all sorts of measures.

I imagine it'd be really quiet

A properly set up roller chain is already quieter than the tyre noise :-)

http://www.bikerumor.com/2014/12/05/halo-coatings-reflective-powder-coat-now-available-for-any-bike-from-hub-powder-works/

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@zaurbek that's an ebike you can see the motor in the back wheel.

ha, such eagle eye.

For better:
SadaBike by Sada Gianluca. Such a space saver it's the same size as an umbrella when folded.

For worse:

No info on what's the concept