fahrRAD       *).  Prevetius modell 2013

fahrRAD solar  -  Tandem bicycle 


You will find here a lot of suggestions to expand the bicycles world with accessories. 

So that for example also an all-weather property can be offered relatively cheaply.

All proposals are particularly directed at the bicycle and parts manufacturers.


Our advantages today are:


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

*  These BIKE accessories would also contribute to further traffic and climate reassurance.

*  This fahrRAD would also be designed as Tandem, TAXI or family carriages.



Here you find some innovations, which can be used well for "normal" wheels.

Special attention was given to the development of these suggestions for general safety.


Concrete frame finishes result depending on the type of use and the designer creation of a bicycle manufacturer.



                                                 1.)  fahrRAD gear - rocking instead of cranking


A "rocking lever drive" can be attached to every bicycle pedal axis. The crank arms are replaced by a lever pair.

It is provided with a freewheel bearing and is attached to the axle of the pedal, via the form-locking eye of this bearing, on both sides of the axle and secured at the ends thereof, as usual, by screws. At their ends, these lever arms are secured with screws, as is usually the case for crank mounting.

It is provided with a freewheel bearing and is attached to the pedal axle via the form-locking eye of this bearing, on the one hand, of the axle. 

The axle ends, as before, remain form-locking pins. The chainring remains fixedly connected to the pedal axis, but has no direct contact with the right lever. Instead of the crank, the chain ring is driven here by lever arms to its usual driving power.


On the levers are a pedal-mounted sliding sleeve. Only together do they give the pedal function of the lever arms. A so-called "snap-in gear shifting" results with the foot now freely selectable engagements in the sliding wave relief (which is formed between the lever arm and sliding sleeve).

The levers are placed in a rocking connection by means of a pulley (under the seat) and a nylon cable.


The simple search for the respective desired translation is solved constructively with two new parts.


More advantages:


*  This device with approx. 350 g weight of two sliding sleeves also does not waste any 2/3-idle circling leg movement.

*  On request, it offers a direct and highly efficient drive performance, therefore also higher attainable tempi.

*  A "Wipp-lever" is more easy to handle than the traditional Crank handle.

* It replaces a rear wheel gear shift (although combinable) - so it is sufficient as a full-fledged circuit.

*  The whole is inexpensive to produce; And allows for a required exchange of the pedal-axle ball bearings.

*  Both lever arms are also detachable and allow the exchange of a defective freewheel.  

*  Needless to say, there are also the usual three chain rims, the chain derailleur, the cable pull and the associated steering circuit         - so many parts.  

* With up to 7 accommodated gears, instead of the maximum 3, these will develop a far wider overall ratio.

                                                                                             -  -  -  -  -


2.)  One-wheel for two-forces


A simple lever arm extension beyond the pedal axle point (optional) provides an advanced pedaling mechanism for a second driver. 

The bicycle frame is only slightly stretched, if necessary, a second seatbelt and a second pair of sliding sleeves are clicked with their pedals (the bolsters are let into the front frame). These attachments can easily stay at home during single exits.


In the paired operation, the cyclist participates only in the opposite riding rhythm - and each exit becomes a harmonious and perfect work placement.

This opens up the development and use of a new, creative lightweight construction Tandem-fahrRAD.




 -  -  -  -  -



3.) The strength lies in calmness



A high rest for the back provides e.g. An optimal supportive seating position; Active kicking becomes powerful, efficient and at the same time more relaxed.

A classic "counter wheel" requires us a somewhat wearisome seat and work; And recumbent bikes position their rider just over the asphalt.

When sitting down, an anatomical support is provided, with ergonomically optimized pedaling. It makes cycling much more relaxed and safer. The saddle is about 20 cm further back to place. The handles of the steering rod are also brought closer to the driver; And so resembles its location of an "Easy Rider" on a Harley.


More advantages:


*  You have a not so front-wheel-heavy center of gravity and does not crash over the handlebar during an impact.

*  With a safety belt, a real higher safety is achieved. It is anchored on the shell support, which is especially stiff at the edge.

*  The large armrest protects the head area, the shoulders and the hip as far as possible in case of an accident.

*  These arrangements prevent a drop out of the structurally given range.


                                                                                                 -  -  -  -  -   


4.)  In case of heat and rain


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



The fact is that our city, cargo and travel bikes only offer high driving comfort every day if they can protect us from rain or direct sunshine.

An attachable canopy could encourage the car to leave the car more often in the garage - to ride on a bike - see below.


A horizontal weather protection roof protects against sun and rain. On the other hand, it also supplies the bulk of the drive power as a photovoltaic film on the aluminum roof frame.

The electricity generated on the roof is fed into the solar battery integrated into the fahrRAD frame. These 150W PV films ** harvest all day, even in diffuse weather conditions, daylight. The approximately 1.1 m² roof creates sufficient energy for a medium travel distance.

The lightweight, removable awning is wind-slippery; In a longer test phase, I drove this one easily, even with strong winds, because even changing winds actually run flat. Also for conventional bicycles such a roof (behind the saddle-ankle or on the handlebar clickable) would be interesting.


The four dachshunds conceal the blinkers of a turn-off indicator. The lights fed from the battery should be supplemented by a brake light because of the dangers in today's traffic density. A dawn sensor could take over the reliable on / off switching of night lighting.

A wind- and visibly transparent net-store protects against rain as well as against too strong sun. It is used by

Velcro fastened to the roof frame. The store has sewn a lead band at the bottom hem and is about 55 cm deep enough. The approx. 60 x 180 cm roof can be moved forward about 60 cm in the rain and granted,

That everything remains in the dry.


For sporty cyclists, this top can also be enjoyed without an electric drive (covered with perlon instead of PV foil, weighs only about 700g) ***.


Concrete cream finishes result depending on the type of use and the respective presentation of a manufacturer.


 -  -  -  -  -


5.)  Hand Protection


In order to avoid common microtraumata in the wrist, a cylindrical, elastomeric tube-plug connection could be provided for the shock-relief, in the steering grips or their transitions to the steering bracket. This stiff-elastic bridge could be differentiated on the weight of a person to be available, respectively, different deeply.


                                                                                                 -  -  -  -  -   


6.)  The small cargo


The area behind the oblique backrest provides plenty of storage space for luggage, e.g. Also one - two children place. Also conceivable would be a light, removable and lockable stretch-mesh basket with a full-length folding lid, which can be pushed with a light hand after the purchase like a travel bag on four castors. This basket can also be made of light pasture, as a practical   4 wheel drolley.

The children 's seats would also be fastened with a click fastener; They may have side wheels under the seat and a guide bracket that can be pulled out of the back part. Such a child seat would become a seat-bucket after the journey.


With a special frame, fahrRAD could be designed as a cargo load wheel with a low-lying and generous loading area. Also conceivable is a three-lane variant (possibly with attachable support wheels raised in travel).

By means of a (PV) rain cover, the transport goods fixed with quick-clamping straps are optimally protected.  


                                                                                                 -  -  -  -  -   


7.)  Tire & wheel - Airless tire?


Cycle & Tube


My idea of a new type of tire made of a harder rubber compound does not require the usual rim bead wire or fabric inserts; Neither a hose nor internal air overpressure. These types of tires already spring through their hard-walled hard-rubber cross-section (see drawing). In the case of higher loads, however, these tires can still be inflated accordingly.

In addition, a small-sized, medium rolling bead provides the perfectly minimized rolling resistance. The lateral, wide auxiliary ridges, optimized for Gripp, only roll into ground contact when in an oblique position. Inflation and "piss-pecking" are not necessary for this uncladable model.

For tire mounting, this fahrRAD tire has a two-part "screw-on rim", which ensures a perfect and form-fitting tire seat.

And, the wire- and fabric-free material is absolutely unproblematic in recycling and can be recycled as granules!


                                                                                                  -  -  -  -  -   


8.)  Tackling a wheel was yesterday ...


Back-friendly side effect on the newly designed BIKE: the rear wheel can get an effective shock absorption using 12 tapered fever glass bow springs or steel leaf springs instead of still common spokes. The other common shock absorbers for front, rear or seatpost also make a bike more expensive. With this optional approach, a rear wheel damping is sufficient. All child seats can also be fitted with these types of spring-loaded wheels. 

                                                                                                  -  -  -  -  -   


9.)  Oh, my ass


Another innovation, also useful for conventional bicycles, is presented here: Especially in longer journeys, conventional saddles are quite uncomfortable. A saddle can also be formed from two oblong, good-fit thighs / buttocks, which are mounted side by side on one axle. These carry out the bouncing pedal movement of the driver. Such a "saddle pad" increases comfort for both men and women thanks to its noticeable relief in the sensitive step area.


                                                                                                   -  -  -  -  -   


10.)  Thieves lock


With a long steel cable lock, which can be pulled out of the frame, the wheel can be attached and secured against theft. A second high-speed immobilizer would also be practical and practical.

The securing of steel cable lock, battery, storage basket and Solardach should be possible with only one key. Even better would be a handsenderschloss - which as in the case of cars for a long time usual - everything centrally locked.

Also existing app solutions are useful for finding a wheel again.


                                                                                                -  -  -  -  -                                                                                                   

Delivery WHEEL - Storm firm


For a storm-safe, vertical parking, a fahrRAD-Cargo at the load bridge front and rear would each have a wide U-bracket stand.

In the Cargue area, three-wheel trailers with their own electric motor can be produced for heavy-load transports (see, for example, - the cover of which could also be fitted with a DC-supplying cover film.


    -  -  -  -  -


 Future of our bicycles


This fahrRAD would be an innovation wheel - no "just a nice weather bike" - and certainly popular on the market soon. The bike sector should be positively enriched by the increased safety and multi-range capability offered. As shown in Fig.

New ABS solutions and braking systems will also have a positive effect on the number of accidents by cycling in the future.



                                                                                               * * * * * * * *


* The approach of placing the pedal axle in the front wheel has proven to be impractical.


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

USB-Plog, Navi-Integration and a hands-free system, combined with the charging, mileage and speedometer display, in a foldable and removable display (in addition to a wide rear-view mirror) in the roof would also be good additional options.


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

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

To a further prototype I have so far lacked the necessary funds and a specialist company as a competent auxiliary.



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 are, the burden is not difficult heavy ... Proverb from Tahiti



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



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





The rush hour of the car industry is foreseeable in an

Era of bicycle- and solar manufacturers.

A general resource shortage will trigger this paradigm shift rather quickly!

Although internal combustion engines continue to be used, the development of mobility technology,

et al In the direction of fahrRAD & TubeWaySolar.

And it will also be good for our global climate.

More on ...

  >> <<


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.

     - - - - - - - - - -           

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.


       - - - - - - - - - 


Tel. +43 (1)9195724, Austria, 0664 9122127                                       - - - - - - - - -         


I ask all those who want NO more to be informed of activities of TubeWay solar to send an email with the subject "unsubscribe". 

           - - - - - - - - - 

Ich bitte all jene, die NICHT mehr über Aktivitäten von TubeWay solar informiert werden wollen, um eine eMail mit dem Betreff "unsubscribe".