TOP-TEN 4Bikes
fahrRAD       *).  Prevetius modell 2013

Carriages not drawn by buffaloes with heavy, large wooden wheels have pulled China and India into the modern world.

No, the bicycles carrying loads of loads have (and still lead to this day)

brought this era.

fahrRAD-solar  -  Tandem  -  Cargo-bicycle  



This  freely available suggestions to TOP-TEN 4Bikes  are particularly directed at the bicycle and parts manufacturers




1.) In the rest lies the power


A classic "upright bicycle" challenges us from a grueling, over-curved sitting and working posture; and recumbents position their driver just above the tarmac.


However, a slightly sloping backrest provides a comfortable and optimal supporting posture; It makes active walking more powerful, more efficient and keeps you relaxed.


When leaning against the seat, an anatomically supporting counter-support with ergonomically optimized pedaling is conveyed. It also makes cycling in this sitting position safer.


The saddle and the back rest are placed a few centimeters further back. The handles of the handlebars are to bring closer to the driver; Its location resembles that of an Easy Rider on a Harley.


Further advantages of comfortably ajar seating:  

* With the center of gravity displaced to the rear, you do not crash headlong over the handlebars in the event of an impact or fault braking.

* A safety belt adds real protection. The belt is e.g. anchored to the tubular frame of an expanded metal shell backrest.

* A so executed rest protects the head area, shoulders and hips in the best possible way and makes a helmet obsolete.



2.) Ow, my butt


Another innovation, also useful for conventional bicycles, is presented here:


Especially on longer trips conventional saddles are actually quite uncomfortable. A saddle can also form two elongated, good seat bidding buttocks, which are mounted side by side on an axle. These carry out the rocking pedaling movement of the driver. Such a "rocking saddle" increases - for ladies as well as for men - the seat comfort - by its noticeable relief in the sensitive crotch area.       



3.) BIKE drive - seesaw instead of cranks


Each bike pedal can be fitted with a rocker arm drive - combined with a 6 pcs. gearbox.

Instead of a pedal crank set, the following lever pair is used: 


Each lever has a freewheel in its square eye and is attached to the pedal as usual and bolted to the axle.

Beforehand, the external chainring (optionally three chainrings) is to be mounted in a form-fitting manner on the tread axis


The ends of the levers are connected to each other by cable and pulley under the saddle.


Each lever arm carries a sliding sleeve. This sleeve, which can be moved along the lever arm, in turn carries the pedals.

Between lever arm and sliding sleeve a coupling relief of waves, teeth or rubber coating is formed.

Against unintentional displacement of the pedals, a bow spring located between the lever and the sleeve presses the selected gear on the clutch relief.


To select the footstool presses the sliding sleeves - by disk at the pedal end - laterally away.

The now freely selectable caAgainst unintentional displacement of the pedals, a bow spring located between the lever arm and the sleeve presses the selected gear on the clutch relief.tch the gear change is made in an uncomplicated, direct process.

The search for the desired transmission ratio is easy to practice and physically well independent.


The advantages of this circuit are:

* The "rocker lever" replaces any rear-wheel gearshift and is sufficient as a complete circuit.

* The ability to combine with a 3-chain chain circuit, however, remains; she continues to perform her wide gear gradation.

* With 5-7 accommodated aisles (optionally three times), this circuit unfolds an optimally spread overall ratio for mountain as well as downhill.

* This device has only about 350 g sliding sleeve weight, and quite a few items and cables are unnecessary.

* This gearshift provides on-demand continuous, high-efficiency pedaling and higher tempos.

* Short rocking breaks are inserted at will.

* The whole thing is inexpensive to produce and provides an easy replacement of a defective freewheel or pedal bearing if required. Retrofit kits would probably be a sales hit, as they fit standard, standard bottom bracket axles.



4.) A bicycle - for two-forces


An extended lever arm beyond the pedal point of view, optionally results in an extended pedaling mechanism for a second driver.


The only slightly stretched bicycle frame, if necessary, a second Anlehnesattel, and a second pair of sliding sleeves with their pedals clicked (the handles are embedded in the tubular frame of the front backrest). These essays can easily stay at home on single exits.


In couple mode, the RADfahr partner only competes with the same leg rhythm - and every ride becomes a harmonious and perfect division of labor. Both have their free gear selection.


This opens up the development and market endurance with a new, creative lightweight Tandem-fahrrad! The frame is then the concrete result of the respective design creation of a bicycle manufacturer.                                                                             




5.) In heat and rain


Who likes to ride a bike in the rain or in high heat? Hardly anyone !


The fact is, our city, cargo and touring bicycles only offer high driving comfort every day if they protect us from wet or direct sunlight. An attachable protective roof would encourage you to leave the car more often in the garage. Maybe it can change some quite on a bike.


A horizontal weather protection roof protects against sun and rain. On the other hand, as a photovoltaic foil stretched on the aluminum roof frame or as a roller blind, it also supplies a considerable part of the drive energy.

The electricity generated on the roof is fed into the solar battery integrated in the fahrrad frame (in tube). The approx. 150W PV foil ** harvests daylight electricity all day long - even in diffuse weather conditions.

The approx. 1.1 m² roof generates roughly the energy of a medium-length driving route.


The lightweight, detachable roof is wind-slippery; because even changing winds are actually flat. In a longer test phase, I drove one without any problems - even with strong gusts of wind.

To retrofit such a roof - behind the saddle-backrest or on the handlebars clickable - always a win.


The four roof corners optionally contain the flashing lights of a turn signal. The lights fed by the battery should - due to the dangers in today's traffic density - be supplemented by a brake light. The reliable on / off switching of the night lighting should be done by a twilight sensor.

The ~ 60 x 180 cm large roof can be moved about 60 cm forward in the rain and ensures that everything stays dry. Frame and foil can roll and/or be constructed foldable.

A wind- and visibility-permeable net-store protects against rain as well as from strong lateral sun. If necessary, it is attached to the roof frame by means of Velcro. The store has a lead band at the lower hem and hangs sufficiently low with about 55 cm. 


Sporty cyclists might also like this top hatch without electric drive (covered with perlon instead of PV foil, weighs only about 700g) **.



6.) Hand saver


In order to avoid the usual microtrauma in the wrist, a cylindrical, elastomeric pipe plug connection could be embedded for impact mitigation in the steering handles or their transitions to the steering bracket. This stiff-elastic bridge could be different on the weight of a person or different, different deep let in.



7.) The little cargo


The area behind the sloping backrest provides space for luggage or even for one or two child seats.

Also conceivable would be a lightweight, removable and lockable expanded metal basket with hinged lid, which can be pushed after shopping like a travel case on four castors, with a light hand. This basket could also be made of woven wicker as a practical 4-wheel trolley.

The child seats would also be fastened with the same click fastener; they might have a pair of wheels located on both sides of the seat and a guide bracket which can be pulled out of the backrest. So the seat would after the trip to Kinderwagerl.



8.) Airless tire?


My idea of a new type of tires made of harder rubber compound requires neither the usual rim bead wire nor fabric inserts, neither a hose nor internal air overpressure. These types of tires already spring through their thick-walled hard rubber cross-section profile (see drawing). In the case of higher loads, these tires can still inflate accordingly.


In addition, a small-finger, medium rolling bead offers the perfect minimized rolling resistance. The lateral, broad, optimized on Gripp broad auxiliary beads roll only in an inclined position in contact with the ground. Inflating and "patching pecking" are eliminated in this nock-resistant model.

For tire mounting, these fahrRAD tires have a two-piece "screw-on rim", which ensures a perfect and form-fitting tire seat.


And on top of that, the wire and fabric-free material is unproblematic in recycling and recyclable as granules! 




9.) Bothering a RAD was yesterday ...


Back-friendly side effect on the newly conceived fahrrad: the rear wheel can be optionally with 12 conical glass fiber bow springs or steel leaf springs instead of conventional spokes receive an effective shock absorption. After all, other popular shock absorbers for the front, rear or seat post make the price of a bicycle more expensive. With this approach, due to a given rear-wheel-centered center of gravity, damping is sufficient (even pushchairs can in principle be equipped with such wheels).



10.) Long finger lock


With a long steel cable lock that can be pulled out of the frame, the wheel can be attached and secured against theft. A second quick-immobilizer would be just as practical and practical.

Securing the steel cable lock, battery, storage basket and solar roof should be possible with just one key. Even better would be a remote control lock - which, as is the case with cars for a long time - locks everything centrally.



Conclusion: As an innovation bike, this bike would not be a "good-weather bike" and will soon be popular on the market. It should - thanks to the increased safety and multigrade capability - positively enrich the bicycle industry!


The general advantages are:

* A Cargorad e.g. gives the deliverer work and is useful against urban smog and traffic jams.

* These fahrrad additions would contribute to further traffic and climate comfort.

* This fahrRAD would also be constructible as a tandem, TAXI or family carriage.


Concrete frame designs result depending on the type of use and personal design creation of a fahrrad manufacturer.


Future of our bicycles


On the market available motion alarm u / od app solutions for Saving u / od again finding a wheel.

New ABS solutions and brake automata will positively influence the number of accidents on the bike in the future.

For storm-proof, vertical parking, a cargo bike has a wide U-bracket stand at the front and rear cargo racks.

In the cargo area, 3-wheel trailers with their own electric motor for heavy-duty transports can be produced (see, for example, and their cover can also be equipped with a DC-supplying film.



* The approach of placing the pedal in the front wheel has proven to be impractical. For another prototype so far I lack the necessary funds and a specialist company.

** PV films produce e.g. Alwitra-Evalon cSi®, Hanergy®, Nanosolar® or Heliatek®.

*** USB plog, navigation integration and a speakerphone, combined with the charge, mileage and speedometer, in a folding and removable display (in addition to wide rearview mirror) in the roof, would also be good options.



Li / Io batteries already require the new EN 50604-1 standard!

Compare to the pedal lever drive >> ,

A step description - from testing (ISO 4210) to sales and distribution - is not part of this study.



It was also possible to realize locally adapted bike-productions from emerging countries! My Trethebelgear and other is in any case free of charge. A cost-effective alternative mobility, with the avoidance of fossil and road-building disadvantages, would certainly be welcomed.


Where many hands (Bicycles) are, the burden is not difficult heavy ... Proverb from Tahiti




© by Michael Thalhammer (TubeWaySystems) - July 2013          -           Technically updated, Vienna, 12.05.2017           -             +4319195724



For feedback, criticism and technical suggestions I am gladly available: >>


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Sie und jede Firma können diese Ansätze zu einer Produktlinie Ihrer Marke ausbauen. Keine Patente, keine strikten Bedingungen.

Zuwendungen aus Gewinnerlösen nehme ich gerne an.  

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You and every Company can these approaches  expand to an product line of its trademark. No patents - no strict conditions. 

I would like to receive donations from winners.


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