4 STRIKE CYCLE – THE IDEA

Cycle with both arms and legs

When we look at a cyclist cycling on his bike, we notice how easily the bike moves at the rear. But at the front the bike is static. In order to make fuller use of the bicycle, the handlebars can be combined with a drive system to make a tandem.

The handlebar contains a patented mechanism that allows upper body ‘pedalling’ and steering to be combined. The front drive system also incorporates a steering stabilizing mechanism. The crankshaft has a special freewheel system that allows the bike to be cycled with both arms and legs or with the legs alone while getting on and off the bike. The 4 Strike Bike has also a second handlebar with a brake, a normal handlebar, in a higher position during cycling. Transforming this bike back into a regular bike. This ordinary bicycle function is the basis of the 4 Strike Bike.

This modern bicycle is a faster way of transport on the road, and the bike can be adjusted to suit different traffic situations and personal preferences.

BE FASTER, USE ARMS AND LEGS

CYCLE AS SUPERIOR FOUR-FOOTER

RACE AND TRAIN LIKE A PRO

MORE FUN, ENJOY YOURSELF!

WHY THIS POSITION?

The concept of the 4 Strike Bike originated from with the cyclist, with his body weight shifted forward and with his arms resting on the handles of the handlebar. Making use of this body weight transmitted through the handlebar the cyclist operates the 4 Strike Bike as follows:

Making use of gravity, the weight of the upper body is shifted alternately from the left handle to the right handle and back. The gravitational force of the upper body weight brings the handles and the crank into motion. The handles push and pull on the central crank set of the bike, moving the bike forward.

The “handbike” drive system is connected in a diagonal parallel fashion to synchronize with the “foot bike” drive system.

New Driving Position

Propelling the bike is a constant fluid process requiring the use of body strength in a smooth alternating fashion from left to right and from front to back and vice versa. This effort requires energy, which is released during the combustion process of ATP in muscle cells. The more muscle power available, the greater the combustion capacity and the energy that can be supplied, generating higher speeds.

If the whole body is brought to bear in the cycling process and is used to provide the energy for motion, as with four-legged animals, then the load on the body is more naturally distributed. This means that the rider is more in control of the bike at higher levels of total body exercise. Cycling with the arms initiates cycling with the legs and allows for smoother propulsion, with a less shock-like initiation of force when pedalling through the dead points (the highest and lowest positions of the pedals).

Unique Selling Points

The 4 Strike Bike has adjustable ‘peddling’ handlebars and can be used as an ordinary city bike in traffic as well as a touring bike for longer distances at higher speeds. It is a much better and more practical means of transport, if you are in a hurry.

There have been several strangely powered bikes on the market involving separate use of the arms by the rider while seated upright but not resulting in a harmonious cycling motion. There are bicycles with a drive on the front wheel, whereby a non-synchronous, non-parallel, unnatural movement of the arms and legs occurs.

Other designs have the handlebars at chest height with the rider seated upright. Here the rider pulls on the handlebars without the use of the weight of the upper body and without synchrony between shoulders, torso and hips, with low back pain as a result.

The 4 Strike Bike makes use of quality materials and technology and is more versatile, so that this ‘total’ bike can be made to high quality standards and engineered to withstand intense use.

4 STRIKE CYCLE
HOW DID THE IDEA ORIGINATE?

The inventor of the 4 Strike Bike is the Dutch Lex van Stekelenburg. He has worked for many years as surgeon. The idea of the 4 Strike Bike arose from physical complaints:

“I developed troublesome back and shoulder complaints from years of performing lengthy surgical operations while standing with a bent and crooked posture. To recover from and prevent these problems, I came up with the idea of ​​this bike. I then designed and built the first bike and began to use the 4 Strike Bike successfully. Over the past 5 years I have experimented with several prototypes that hundreds of enthusiastic people have now cycled on.

As slow walkers we pedestrians can’t do without our bikes and cycling has become a sort of ‘second gear’. If we don’t allow a rigid handlebar to suppress the natural feeling of wanting to move our arms together with our legs, but enable them to cycle as well, then we can shift into a ‘third gear’. We have now constructed a bike that you can cycle almost as if you were four-legged, assuming a more horizontal position and with harmonious movement along the shoulder and pelvic girdle. As well as steering, the hands now move with the feet in an alternate parallel pedalling movement using all 4 limbs to create more speed.

With the use of more muscle power from the combined use of both upper and lower body, more muscular work is performed and the effort more equally distributed; this is healthier for heart, better for aerating the lungs and prevents undercooling of the upper body in rain and cold. You’ll have more fun on this revolutionary new bike.”

The bike is produced by Minq Engineering B.V. in Lichtenvoorde

Lex van Stekelenburg –  2012

WHY IS THE 4 STRIKE CYCLE GOOD FOR YOUR HEALTH?

Cycling the 4 Strike Bike makes active use of more different muscles and the use of arm and torso muscles aids breathing, leading to better aeration of the tops of the lungs. The heart has a more balanced workload, now supplying blood to muscles in both upper and lower body.

The 4 Strike Bike gives you a total body workout, generates upper body warmth, aids ventilation, and leads to total body fitness. In sport, the 4 Strike Bike will be valuable as an exercise bike. In many sports you can see the same pattern of movement as used when riding this bike. In the rehabilitation of heart, lung, torso and back complaints this bike is an ideal tool to aid physical recovery.

4 Strike Bike

On a regular bike about 50 muscles are in active use whereas the 4 Strike Bike requires the active use of 128 muscles and an increase of the collaterals lowers the blood pressure.

Cycling the 4 Strike Bike is fun because you no longer have to sit with your arms motionless, they can help cycle as well. You can vary your cycling, using your arms actively or just to steer as you wish during recreational cycling. It’s also a fun bike for children to ride.

CONTACT US

Interested in our product or do you have questions? Feel free to contact us via the contact form below. We will inform you as soon as possible.