Chainless bike.

详情

The world\'s first transmission bicycle without chain \'Hank\'



Hank is the world\'s first bicycle that runs without having any power transmission mechanism such as chain or equivalent devices.

High performance and portability that add to brilliant beauty !!!!

 Bygens patented core technology.

Inventing the world\'s first transmission hub directly connected to crank, Direct Transhub.

Hank the Direct bike is driven by only cranks without any transmission devices (chain, chainring, sprocket, derailleur) like chain or substituting chain while shifting gears.

(Not a electric bicycle)

- 3 Speed gears : the 1st gear(1.55:1), the2nd gear(2.4:1), the3rd gear(3.72:1)

Direct Bike a bicycle with cranks directly connected to transmission hub.

 

Features of Hank

1. Direct Bike with superior performance.

- It is a high-performance bicycle that runs the hub by directly connecting cranks to the hub axis of the rear wheel, thus minimizing  power loss resulting from chain tension and dirt on chain.

For better speed, 20(451) inch 5-spoke full-carbon wheels for mini-sprinters were used.

2. A bicycle with easy transportation and portability (anti-theft effect)      

- Full carbon frame

- Full carbon 5 spoke wheels

- carbon Seat post 

- Can carry it in the subway, cafe, restroom, etc.

- 2 or more bikes can be loaded in the trunk of a small-size car without disassembling the front wheel

- Can carry it inside a lodging during travel                            

- One-touch folding carbon handlebar

- Ultra-light portable bicycle that weighs 7kg range and is easy to transport and carry around

Portability is maximized by quick release of the front wheel and hanging it on the front wheel hook in the bikes lower frame, which reduces the total length of the bike to less than 1m.

3. Dazzlingly beautiful design (a portable accessory that will make you look better)

A simple and elegant design you have never experienced before from a bicycle

You will see nothing, and nothing but the cranks