Pappa Bear Posted October 26, 2013 Share Late night surfing got me to these strange pics....... Anybody knows what this is and how it works? Link to comment Share on other sites More sharing options...
Pure Savage Posted October 26, 2013 Share Link? Link to comment Share on other sites More sharing options...
Pappa Bear Posted October 26, 2013 Share No idea..... Just saved to my Ipad and only recently found them in my library again.... Link to comment Share on other sites More sharing options...
funjunkie Posted October 26, 2013 Share http://www.stringbike.com/bikes/bikes-cross/ Link to comment Share on other sites More sharing options...
GaryvdM Posted October 26, 2013 Share http://www.stringbike.com/Â http://phys.org/news204349619.html Link to comment Share on other sites More sharing options...
Pappa Bear Posted October 26, 2013 Share Thanks guys. Interesting...... Nots sure if the chain on a bicycle will soon be replaced. Link to comment Share on other sites More sharing options...
Mads Posted October 26, 2013 Share Thanks guys. Interesting...... Nots sure if the chain on a bicycle will soon be replaced. Have to agree. That stringy thing is ugly. It reminds of the equipment they used to read the stars to navigate in the 1800"s Edited October 26, 2013 by Mads Lexx 1 Link to comment Share on other sites More sharing options...
GaryvdM Posted October 26, 2013 Share Very interesting. Lots of pros. I like the idea. Some concerns I have about the design:The cable outers for the gear selectors are constantly moving. How long will they last, and how much energy loss dose this cause?What free wheel ratchets are they using. I would think they need to be very fine, otherwise it will not be a smooth transmission.How wide apart are the pedals compared to traditional chain & sprocket designs? spiderkzn 1 Link to comment Share on other sites More sharing options...
Capricorn Posted October 26, 2013 Share errrm, looks like they took a train, and added a saddle. seriously reminds me of the reciprocating motion of old steam trains, and just about any piston engine for that matter. Very cool! lucmccann and GaryvdM 2 Link to comment Share on other sites More sharing options...
DJR Posted October 27, 2013 Share It's an engineering students' wet dream fabs and Capricorn 2 Link to comment Share on other sites More sharing options...
fabs Posted October 28, 2013 Share practical purpose - zero.twice as many components than necessary.Why eliminate a chain with power transmission close to 100%to substitute with elastic, that will have huge losses ??? Link to comment Share on other sites More sharing options...
YUMEYA Posted October 28, 2013 Share Late night surfing got me to these strange pics....... Anybody knows what this is and how it works? Complicated Link to comment Share on other sites More sharing options...
Corvus Posted October 28, 2013 Share I prefer the hydrostatic drive Link to comment Share on other sites More sharing options...
Zeffer Posted October 28, 2013 Share Bit like wave technology, similar to the way you harness the power from ocean waves. Link to comment Share on other sites More sharing options...
GaryvdM Posted October 30, 2013 Share twice as many components than necessary.Complicated It's not nearly as complicated as derailers. Why eliminate a chain with power transmission close to 100%to substitute with elastic, that will have huge losses ???  Chains requires lots of maintenance. They are not using an elastic, else it would be called the elastic bike. It uses a very inelastic string. Link to comment Share on other sites More sharing options...
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