Bygen, è un azienda espositrice
al Taipei International Cycle con sede in Corea del Sud (Gyeonggi-do - la provincia di Seoul), siccome presumo che il modello in questione "Hank" non sia ancora in vendita io la collocherei nella fascia prototipi e successivamente magari verrà spostata nella sezione "altri modelli"
Introduction of the No-Chain Hub Direct Bike ’<HANK>’
Under the premise ‘ bike is not just for riding on’, but for portable
Bygen has developed the first chainless bike, or “HANK(Hand Bike)”
-Oriented bike for easy carrying around
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Super-light 7kg range with easy transport and portability
(Existing foldable bike normally weighing more than 13kg)
-Sliding-type reducing the length to less than half
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3 speed internal gear hub ( gear ratio 1.6:1, 2.5:1, 3.9:1)
-One touch folding-type handle
-Portable to subway, café, restroom, etc.
-More than 2 units loadable in a small car trunk
Portable bike with high performance second to no other bikes
-Fast speed realized by application of 20 inch five spoke carbon wheels larger than
existing foldable bikes of a chain type
-High-performance bike for easy maintenance and management
due to no worry of breakdowns
Superiority of the “No-Chain Hub Direct Bike”
Outstanding performanceDirect bike slideout
-Zero power loss, performance improvement by more than 5%
(Power loss due to chain tension 7~8%, in the case of a new product)
-Outstanding performance is accomplished with lever principle as the less power,
the longer crank length Simple parts -No existing,
complicated driving system like chain,gear, etc.
-Configuration with just 1 parts of joint internal hub gear
Excellent durability
-No wearout trouble parts to be replaced such as chain, etc.
-Part structure with excellent durability
Comfortable riding
-No worry of clothes getting contaminated by oil or jammed
-Comfortable riding possible with everyday dress
Da piegata 
Bygen's Hank Introduction
By 
Site | http://bygen.co.kr/ 
