bicycle information
Welcome to my little bike / reading area. The information sections offer for fans of the bike a little exploring.
Have fun and enjoy the selected topics.
first Historic Reading Corner:
handling of the velocipedes
After you've made over it, the elbow to the outside and the body held slightly forward, resting one's arms on the balance board and try to maintain balance by gently on the board after the end presses on which begins the same lift. the easily movable handlebar is held with both hands and is used to indicate the direction Velociped the way you want to, but must also ensure that the wheels run as much as possible in a straight line. The steering is to be performed only with the hands, because the poor have to keep up to the elbow, only the balance, while specifying the hands of the direction. We must try to get a real feel for the fluctuations to acquire the velocipedes. Then, imagine your feet lightly on the floor and do in the direction of the front wheels running huge steps. In the beginning, do you slow steps and make sure not to take too much hacking to the inside, so they do not fall into the rear wheel. To overcome little by which to oppose the difficulties, making it the first experiments on a smooth road or better yet a place of sufficient size. Only after you reach the next full skill in keeping the balance and steer the velocipedes, we should try to increase the movements of the feet and the same often to stay in the air (while the machine high speed rolls) to relax to.
Karl von Drais: The patent in 1818
transmission
we therefore occur in the pedals! The pedals turn in a circle and with them the large sprocket. Through a chain, the rotation is transmitted to the small sprocket is fixed to the rear wheel. The bike moves and rotates to the front wheel well. So there are several rotations set in motion and rotation movements occur at specific forces. Because of their large diameter, because of the relatively large mass density at the outer edge (rim and tires) and because of the high potential Speed of these forces are of great effectiveness. As with linear motion, a body can not continue without effort, also shows the rotation of an inertial behavior. A shift in rotation wheel wants to maintain its orientation in space. It takes strength to swing a rotating wheel. This can also be felt in high-speed devices such as electric hand drill or hand, especially if they are using only one hand is holding and then trying to swing. So if a bike has begun, with the steady behavior of the rotating wheels to his stable driving behavior and the more so the faster the movement is, because then the inertia forces really affect. But that alone does not explain the handling stability of the bicycle. It is as like the balancing of the broomstick. The driver operates a nearly unconscious, reflex-like correction to prevent overturning.
Otto Luehrs
top police regulations
Excessive speeding, circling of wagons, people and animals, the carrying of children on bikes and other actions which are likely to endanger persons or property, disrupt traffic, horses or make other animals are shy prohibited. The cyclist is obliged immediately to call for complaints by security forces to stop and sit. All cyclists must be one of the local police authority in his place of residence or, if he does not have a residence in Bavaria, the place of residence issued, leading to his / her name ticket at all times and to require the inspectors. Once the ticket is issued regardless of any change of residence or stay for the whole kingdom. Persons who are not in possession of such tickets may not be cycling on public roads, streets and squares. The ticket can be withdrawn from the exhibition of the same competent authority temporarily or permanently removed when cycling after issuance of the ticket punished for intentional or negligent homicide or injury or property damage was due, provided that Reate with cycling related are top police regulations for cyclists in the Kingdom of Bavaria 1 January 1898
poem by Else summer
What is never beöse, which is never dull
even if you have loaded it
like a donkey in Hyderabad?
This is my old bike
Be it books in folio,
potatoes and cases,
a basket of lettuce or a heart
the sorrow has -
difficult as it may,
it with my bike
It helps me patiently early to late,
it takes me to the country,
it brings me to the city
as most loyal friend on the path of life.
I thank you from my heart, my camera-bike!
Else summer
The bike
"The bicycle is one the most useful inventions that mankind has been blessed. It is - when working well - a gift not only for advancement but also for the pleasure and therefore to the health "once wrote the British author Alan Sillitoe, who had started as a laborer in a bicycle factory, and in fact is the bike. not with so far over a billion copies than most built machine in the world! Such endless supply items with praises of the bicycle disguise the fact that it went through in its history, all the ups and downs of social acceptance. collectors of cycle timers and historians have in the postwar period, especially in the English speaking world since 1990 and organized an international bicycle history conference launched, which meets every year in another country. Already, these conferences, the prevailing view of history up to that of the two-wheel have turned upside down. The belief that the bicycle was invented simultaneously in several places, is wrong: there was only in several locations at the chauvinistic desire to forge priorities. Fortunately relates Pryor Dodge, even collectors in New York, on these latest results, providing a correct image 180jährigen, episodic ascent of that brilliant machine that we call in Germany since 1885 bike.
by Hans-Erhard Lessing
inventions
The pneumatic tire, which since 1845 by her coach building known, invented by the Scottish veterinarian Dr. John Dunlop in 1887 again, but for the bike. Although this invention was very important, it took considerable effort to make the bike to what it is today. Further developments in this way were the invention of the pentagon-bike frame for Men by Humber (1885), the invention of the double frame for Women (1889) and the invention of new rear hub by Sachs (1895 Präzisionsnabe, 1898 Freehub, 1900 "torpedo-Coaster") . The advantage of this hub was that the bike could be driven and braked well and that you needed mitzutreten no longer on downhills. By 1900, the development cycle was completed in the guidelines. In the 20th Century were added only - the introduction of chromium in the twenties - the application of chain circuits - the use of high-quality metal alloys for frames and other major bicycle parts. The single most important change for the bike was the chain circuit. It created the condition for that arose from the Veterans History rapid cycling road vehicles. Although in France with Michaux wheels already in 1869 drove the eerste road race over a distance of 121 km and 1893 in Chicago the first world championships were held in the road race, can the speed of time in no way be compared with those who are down with bikes that have the gears. Modern derailleurs (18 courses in Japanese high performance sports bikes) have brought a considerable increase in speed. although the trend in cycling will go towards increasing speed, bicycles for everyday more and provide more recreational and exercise equipment is, their popularity is growing. This proves the existence of about 800 million bicycles in the world, to which are added 40 million new bicycles.
of Jennrich (1984)
production figures for the East German bicycle industry took
1974 Elite diamond production because of increased demand for bicycles up to the immense. From 1974-1980 one million bicycles were produced in the VEB diamond. In Mifawerk Sanger left the house in 1984
1 0000 000 bike since the company foundation in 1907 the factory.
Hercules -
ordeal was known at that time (1952) so popular ordeal. As was found by journalists from the production line and a bicycle with two hooks, so to speak as a clutch - hung between a Lokomutive and eight fully loaded trucks. The frame was held this load with ease. Only when a "shoe" the rolling carriages and the locomotive stopped abruptly moved on, stretched the top tube of the frame and pulled without the soldering of the joints gave way. A convincing demonstration of the quality of the Hercules Rahmenlötung
By Norbert Daum
The usual frame heights in the GDR
- Children's Bicycles 360 mm
- Youth Bicycles 440 mm
- Track Bicycles 560 mm
- Sport Bicycles 560 mm
- street racing bikes 520 mm
- street racing bikes
550 mm - 610 mm road racing bicycles
- folding bikes
400 mm - 470 mm
Universal Bicycles - Tour tandems 565 mm
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second Tips on buying a bike:
bicycle purchase
Cycling is permanently fun. So I recommend before you buy think about where they want to go mostly with their future bike. Is it a pure transport medium, they want to take smaller bike or should their vehicle for be an extended bike tour? Are they an amateur racer and want to train? Or it makes them fun to go with the bike to the ground? Or are you looking for a bike for their child that is suitable for children and robust? If you are over the deployment and use in mind, you know basically what type of wheel you are searching for - a sporty lightweight wheel for trips with the family - or a confortable, easy to use city bike for the city - or a Trekking bike for long rides on country lanes and off paved roads, or - be solid touring bike, which she accompanied on vacation - or a classic road bike for training and competition - or a mountain bike for the adventure of off-street
control when buying a bike
check when purchasing a new bike:
- lift front and rear roll the wheel each and and side stroke check
- Check steering bearing play
- Check Tretlagerspiel,
- clearance of front and rear hub, check
- function test of the lighting system,
- visual inspection of all safety reflectors,
- visual inspection of Tretkranzes turn it and see if wobbles this,
- test drive, it is to look for precise shifting and braking, there should be no noise . occur
Added control when buying a used bike:
- visual inspection of the tires,
- visual inspection of Bowdenzugdrähte and Bowden,
- visual inspection of Brake Blocks,
- (if existing chain measure incremental)
conversion
who lets his bike not a priori from individual parts together yourself up and assemble, is hardly find a bike that fulfills all his needs and requirements. Often, however, some small and not so very expensive changes alter the character of a bicycle quickly and clearly. This is primarily the use of a new driver or use a different saddle. Before you know procures a new bike, you should definitely Case, consider if you are not old by such modifications to adapt the current Bedürnissen.
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third Technical Reading Corner:
provisions of the Road Traffic bicycle
must according to an established StVZO meet bicycles below minimum legal requirements:
- reflectors pedals with 2 certified yellow reflectors
- 2 approved Not spoke reflectors per wheel
- front lights and white front light (front light is usually in the headlights integrated)
- rear light and red reflector
- lights and reflectors to § 22a StVZO meet
- Headlights must be adjusted so that the light cone in about 10 meters on the track
meets - total load of the bike up. 100 kg
- Permissible max. Loading of the luggage carrier 10 kg of support with a brace = 10 kg carrier with 2 struts: 25 kg
- Two independent braking systems
- At least a light-sounding bell as an acoustic signal
- 2 wheel holders on the front wheel
should
Recommended tools and materials for the Road
The tool manufacturer in the saddle bag of a bicycle purchased do not use it. In their own interest, each cyclist lead his courses they have use of tools with them. The tool must be matched to the bike to be driven be.
- 1 tire levers,
- 1 wheel wrench (15er, creped, long handle),
- 1 air pump (to match the valve and suitable for the air pump bracket to the frame),
- 1 spoke wrench,
- a chain tool or an equally long chain with a chain lock how the bike is,
- a key to stem (6-Allen with long lever, 11mm or 13mm ring spanner, key must match this screw to be voted on bicycle),
- on bike with cantilever brakes you should take a 5-Allen and a 10 mm wrench,
- on bicycles with derailleur I recommend a small screwdriver,
- one manual and Bremsbowdenzug in a prepared state with the particular tool (for derailleurs usually the 9er wrench for brake systems, the 8 or 10 ring spanner)
- (pay attention to size and valve) a fitting hose
- 2 repair spokes (fits both wheels)
suggestions for self-inspection conducted
Monthly inspection: - Check all Schraubervbindungen,
-
check the 4 main bearing clearances,
- check pedals ,
- Check the gear shift,
- Brake Blocks must be set correctly,
- Check wheels to wobble,
- Visual inspection of the cables (if wires durchängen in relief),
- visual inspection of the tires,
- visual inspection of the chain,
- Check lighting system,
- visual inspection of all safety reflectors
biannual to annual inspection:
- treat chain with Grease (on and off),
- chain links on both cannons and oils pulleys,
- Bowdenzugstopper and deflecting oil,
- Remove cantilever brake base and grease
- in normal rim brakes the pivots oil
causes of broken spokes
spoked right and still trouble with broken spokes?
first The spoke tension across the wheel is too low, noise can occur spokes
Remedy: Each spoke in succession with half a turn to be related to stress, if that is not enough to be tightened again all spoke with a half turn. Thereafter, the side stroke will be reviewed. The higher the tension, the better the load distribution over many spokes.
second Too much clearance between the hub and spoke hole. With each turn of the wheel can result in the spoke flange back and forth, spoke noises can occur.
Remedy: The difference between the spokes and the hole diameter is larger than 0.3 mm. You should also use washers.
third Vibrations occur at certain spoke during the Faht. Scattered spokes are too few spokes. Such vibrations are as dangerous congestion in the long run.
Remedy: The spokes brings you all on the same voltage required. Then check lateral runout.
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