Finde das du eh schon alles wichtiges erwähnt hast!

Natürlich kannst du über die Geschichte noch was verzählen. (erste Pocketbikes etc.)
Als Anschauungsmaterial kannst einen Motor mitnehmen.

Im Prinzip kann man das Thema durchaus sehr ausbreiten. Wobei das dann länger als 15 Minuten wird

Am Schluss noch eine eigene Meinung:
Pocketbikefahrer die auf der Straße fahren sind doof und ziehen diesen Sport in den Dreck.
Oder so ähnlich.

MfG Seimän

bei einem referat kommt immer gut wenn man es den leuten besser verkaufen will!weil oft die fragen kommen!zumindest bei mir!

ist das schwer?kann ich das auch?

theme fahren für anfänger!!!
POCKETBIKE FAHREN KANN JEDER BZW ES KANN JEDER LERNEN,es ist nur übungssache und nach 2-3 ausfahrten fühlt ihr euch dann schon ganz sicher..

lg manuel

Ach komm, gerade deswegen

Zum Thema Geschichte:
Du kannst von der Vittorazi oder einer ZPF Efco (ca. 20 Jahre alt) Fotos herzeigen. Denke das deine Klassenkameraden selber erkennen welche Fortschritte Pocketbikes gemacht haben. (rein an der Optik schon )
Wäre, finde ich, eine kleine Einleitung ins Thema.

MfG Seimän

Das mit dem Motor hat bei mir in Physik super geklappt..
Hab meiner Lehrerin gesagt das ich gerne nen kleinen Motor mitbringen kann und was darüber erzähle
Hatten da das Thema 2 Takter, da habe ich ein bischen was über die Takte und wofür was da ist bzw. auch über den Sport erzählt und versucht das für die anderen verständlich zu machen (Intressieren sich nicht so für Motoren)

Schwupps wieder ne 1 abgestaubt

Man sieht sich hoffentlich mal wieder in W-Tal

MfG

Sebastian

hab meine englisch mündlich prüfung über pocketsgehalten und hatte ne elite replica ( eigentlich kann ich blata sagen war alles blata,zocchi,pmt dran ) dabei und hab die dann vorgestellt und nicht nur erklärt sonder auch gezeigt das bei denen die bremskaft enorm ist durch die bremsscheibe die fast so groß ist wie die felge und hab dann eben gesagt das da fast nichts passieren kann wenn man mit kombi ect fährt und das auf kartbahnen, weil wenn man beim pocket hinfliegt schleift man nur über den boden und fliegt nicht so wie beim motorrad.
ja ansonsten hab ich eben noch erzählt von den unwissenden und veranwortungslosen die auf der straße mit billig dinger fahrn

vortrag 1 grammatik 2 waren die noten^^

Einstieg in den Motorsport, Rossi fuhr auch aufm Pocketbike...

Started in Japan in the seventies this sport is relatively unknown and understood here in the United States. Minimoto racing, also known as Pocketbike or Mini bike racing, is one of the fastest growing two wheeled motor sports in Europe and is slowly becoming more popular worldwide. The Europeans, mainly Italian and Dutch, caught onto these little machines years ago. Powered by no more than your average garden tool engine, there was room for development. Over the years the machines have grown into full-blooded racers. Currently the Italians are the largest producers of Minimoto machines and parts. Do not be fooled! These things are not toys for deep-pocketed rich kids. They allow the average guy in the street the opportunity to become a racing star on a budget. Beware though - it is highly addictive!

With the amount of TV airtime that Minimoto is receiving in Europe and more people in USA having access to the European Motorcycle Sporting arena, the Minimoto machines have a growing awareness here in the USA. Unfortunately there is no or little understanding of the sport-taking place yet. With the help of US National and Regional Racing Associations, Pocketbike Dealers, and US Importers, this is going to change. Being one of the largest online Minimoto resellers in the USA, we are dedicated to growing and developing the sport.

Understandably, as a spectator, it is hard to comprehend the great potential of these little machines. Once you have had a few minutes on board, you will see what the fun is all about. This is a great starting ground for young and even older riders. One has to admit that there is a poor showing in the GP races of US names. This could change if people see the advantage of Minimoto racing here in the USA. A few years down the road there may be a wealth of American names on the worldwide circuit if Minimoto is given a chance here in the United States. A large amount of the Italian and Japanese Championship racers started their riding careers on Minimotos. Listed below are a few of the famous riders that are well known in the Championship Racing Circuit.




da steht schon recht viel drinnen, und damit es nicht zu leicht wird in Englisch *gg*

Pocketbikes were first introduced to the United States in the early 1970\'s with the arrival of the Dandy pocketbike. It was imported from Japan by the Kendee Corporation and the sport of mini moto racing caught on like a wildfire. Other pocketbike manufacturers from Japan, Italy and Europe soon joined the scene. The early bikes were powered by a (Robin or Roland) 2-Stroke engine with either a 34.4cc or 40.2cc displacement. These engines were originally being used on weed eaters and leaf blowers. These engines put out 2.0 horsepower and with the addition of an expansion chamber (tuned exhaust pipe), the bikes would put out a whopping 3.0 horsepower! The frames were made of steel tubing, 4 inch aluminum rims, pnumatic tires, rear cable operated disc brake and a 3 piece fiberglass body. The seat height would measure no more than 14 inches off the ground.

Wow, now we are talking! Well, the UK started with the Japanese Komatsu and Italian Efco, for a long time everything was basically industrial engines and 4\" tyres [I remember going to MMRA championship rounds in the middle of summer on an indoor track at Oldham.....eeeeeh, them were the days].

Anyway, then this upstart firm came along with the Polini 910 carena/dirtroad and everything changed. This became a \"midi\" and the 6.2hp was a \"super\"! Things really changed in 1996, when the first \"midi\" as we know it came out, the Polini 911, this is also when GRC arrived on the scene with the exquisite lazer, etc, which were expensive and a tad fragile, and us with the stunning looking 916 rep Pasini. People at the time had no idea what to do with the clutches [which were all crap anyway......nothings changed then] and so eventually all the classes you have today were born.

In the meantime, the old bangers became the Paul Godwood class, named after one of the guys who really helped to get things going. Paul was a courier in Manchester who spotted a load of second-hand Japanese Komatsu\'s for sale by a grey importer [remember them?] and set up the first ever UK hire fleet, which is how I met him, sadly, shortly after this, Paul was killed in a road bike accident.



Step One – History

It all started when an Italian father made a bike for his son. He gathered together some parts used for other applications (including a lawn mower engine) and set about creating the first minimoto. It quickly caught on and a couple of small Italian engineering shops started to produce the first bikes. Where possible, they used parts that were already available. Small 2 stroke engines, mainly from garden machinery, were used. This type of engine is still used today for a few models and is referred to as an ‘industrial’ engine. One of the most common industrial engine manufacturers is ‘efco’. Engine and bike design developed but was revolutionised when Polini entered the market with an engine specifically designed for minimoto. The majority of today’s models use this engine, which is constantly being updated. Polini also introduced other parts specifically for minimoto, including tyres and, using mass production, created an impressive model range. Most of the smaller manufacturers adopted the Polini engine and used it in their own cycle designs. Today Polini dominate engine production. They remain the biggest bike manufacturer too, but Pasini, GRC, DM, ZPF, ATM and Stamas are also major players in the manufacture of minimotos in Italy. GEM is based in the UK and uses Polini engines. ‘Blata’ come from the Czech Republic and use their own engines.



Step Two – Mini and Midi

There are two sizes of minimoto, ‘Mini’ and ‘Midi’. I am not aware of an ‘official’ definition between the two. It is not necessarily that easy to spot either. The latest lattice framed GRC needs very close inspection to see if it is a mini (GR1) or a midi (RSR). Consequently, riding the two feels much the same. At least I think so and I often ride both. Some bigger and/or less flexible riders say they prefer the midi. On the other hand, there is an argument that says the mini, because it is smaller, handles better. The Polini 911 is noticeably taller than other bikes. The debate will go on but it really is not that big an issue. Most riders will quickly adapt, especially to their first bike. It can feel strange jumping on another bike and often the first impression is ‘I don’t like the way that handles’ when all it is is an alternative feel because of the slight changes in geometry. 95% of people who can squeeze themselves on a midi should comfortably fit a mini as well. Some championship regulations will insist that juniors ride a mini.



Step Three – Engine Types

Industrial engines. They are still used by several manufacturers (most notably Blata on their entry level bike) and typically produce between 2.5 and 3.5 horse power (hp). All are air-cooled. Tuning and performance parts are very limited.

Polini 4.2 engine. This is the basic Polini engine and, as it’s name suggests, it produces 4.2 hp in standard form. It is air-cooled and uses the ‘series I’ crankcase with the 3-port cylinder. There is plenty of scope and parts for tuning but few people bother because most racing classes for the 4.2 won’t allow any modifications.

Polini 6.2 engine. The top end of this engine is the same as the 4.2 (3-port) but is available with either water or air-cooling. The bottom end uses the ‘series II’ crankcase. This helps to make it more powerful. Race regulations don’t allow modification to the engine internals but do allow performance parts, the most significant being the exhaust. There are a wide range of alternative exhausts that year after year manage to extract more power from the engine. Consequently the 6.2 ‘tag’ no longer means anything, these little rockets (more often referred to as ‘production’ nowadays) claim power outputs of up to 9hp.

What’s the difference between the ‘series I’ and ‘series II’ crankcase?. Fuel is drawn from the carb into the crankcase via a one-way valve known as the ‘reed valve’. The intake port (where the reed valve and carb join the engine) on the series I engine will only accommodate a reed valve assembly with one reed ‘petal’ whereas the series II will take a reed valve ‘cage’ that accommodates two reed petals. A two-petal reed valve will allow more fuel mixture to flow into the engine and, therefore, produces more power.

Polini Super engine. The super also uses the series two crankcase but with a 5-port cylinder. It is only available in water cooled now but used to come as air cooled as well. To compete with Polini, Mallossi manufacture an alternative 5-port cylinder. There are no restrictions on tuning supers and with engine ‘porting’, bigger carbs and other performance parts they can be turned into awesome machines (for their size) easily producing 12hp.

What is meant by 3 and 5 port?. This refers to the amount of ‘transfer’ ports built into the cylinder. The transfer ports draw the fuel mixture up from the crankcase and ‘dump’ it above the piston prior to ignition. A five-port cylinder has potential to produce more power.

40cc or 50cc. The 3 port engines are only available in 40cc. The 5 port cylinder comes in both 40 and 50cc. ZPF offer a tuned 5-port polini cylinder with their own ‘special’ cylinder head. The extra cc gives 25% more displacement and, therefore, has the potential for more power. 50’s are more common in the USA but they\'re catching on fast in the UK. The UK now allows them to race in championships.

The Polini engine components are interchangeable, which can make for some interesting combinations. However, people don’t tend to bother because of class restrictions and it is usually easier to upgrade the whole bike or change the complete engine.



Step Four – Cycle components

In recent years, cycle components have rapidly developed with the introduction of parts specially design for the purpose. A modern bike no longer looks like a collection of bits from other applications.

Frames are either a tubular steel or spar alloy construction. Both types have basic and more advanced examples. There’s no suspension on a minimoto.

Brakes are cable operated discs ranging from adequate to outstanding. I wonder how long it will be before we see the first hydraulic set up?

That leaves wheels and tyres. Tyre size and availability is the main, if not only, tuning factor regarding the cycle chassis. Early bikes used ‘fat’ tyres that, I guess, came from some other application. Some bikes (mostly industrial engine) still use them. Apart from those, all other wheels and tyres are specifically designed for minimoto.

5” tyres. Available in one size for front and rear and (as far as I know) one make, UTAH (part of Polini?), these tyres are fitted to the Polini 910 range. The 910 is a mini that is very popular as an entry bike and as a hire bike. For their midi range, the 911, Polini uses a tyre commonly known as 6”. They are, in fact, a 6.1” rear and a 6.6” front. Both 5” and 6” come treaded as standard but there is a soft compound slick available for the 6”. Both set-ups use tubes.

Most other manufacturers (and, increasingly, Polini) are adopting 6.5” tubeless tyres mainly manufactured by PMT. Front and rear use different profiles, although some riders use the front on the rear to create different handling characteristics for certain tracks. The tyres are currently available in three separate slick compounds and two wet weather types. These tyres look like motorcycle racing tyres and are fast becoming the rider’s choice.

As with the engine, cycle components are interchangeable but often require some modification.

Most new bikes will consist of a combination of the above specifications..

Ebenfals noch ein kleiner Text über Pocketbikes. Auch von mir in Englisch
Steht bestimmt auch unnötiges drin. Habs nicht durchglesn.

genau, wir die Vorschreibenden schon erwähnten, das ist eine bezahlbare Möglichkeit, um talentierte Jugendliche mit dem Motorsport vertraut zu machen. Durch die federungslosen Chassis lernt man insbesondere, den Reifengrip zu "erleben" + mit Fahrbahnunzulänglichkeiten zurecht zu kommen.

Eine ideale Möglichkeit, Grundspeed zu trainieren, bevor man in "richtige" Rennserien aufsteigt.

Ich wünsche Dir VIEL Erfolg mit Deiner Arbeit!!!!

@xel