![]() The engine through the layshaft to the rear wheel. To the gear cluster and gears so this is the third stage. From that point, it goes through the clutch directly This is then connected to the crown wheel by the chain - so the crown Of the crankshaft upon which the front sprocket sits - so that is the first The power the top end creates is transmitted from the end The correct gearing gives you best performance.Īt how gearing works and what governs it is by breaking it down into its It doesn’t matter whether you have a totally standard LambrettaĮngine producing 10bhp or some monster tuned engine with 30+ bhp the principles Therefore this article is purely based on theįour-speed box. Though there are five-speed options nowīecoming more frequently available, the majority of Lambretta owners will only The first stage is the front sprocket.Įngine has only got four gears, which holds it back considerably when trying to The engine pulls through each gear but gains a much higher speed before it Through the gears very quickly so acceleration is good but top speed is reducedīecause it’s revving flat-out too quickly. The easiest way to explain each is short means going We will use the terms short and long when it comes to describing Power will be fading off and you will be over revving the engine for very It produces most power, commonly known as the power band.īand then it will struggle to pull the gearing. Is a two-stroke engine, therefore it will have an area in the rev range where The reason gearing is so important is that the Lambretta When gearing is termed short or tall, or low or high, it quite Gearbox they have in the engine, some will not be able to answer correctly.Įven if they do, chances are they will not know what sprocket combination it So the question is… which gearbox best suits a certain engineĪnd what sprocket choice is exactly right to use with it?Įnjoy more Scootering reading in the monthly magazine. Have a vast amount of gearing options available. ![]() In the fact both the front and rear sprocket were also interchangeable and you Grand Prix all had gearboxes that were interchangeable with each other. Looking at the components that control gearing when the side case is taken off can be a bit bewildering to say the least.Ĭomplicated though, as models ranging from the Li Series 1 right up to the The gearing requirements for each model… changing the ratios depending on theĬapacity and power output with great ease. ![]() To get all this in such a small area was quite a remarkableįeat at the time of its conception. Only does it house a chain drive but also a four-speed gearbox (now five-speed It’s neat, compact, and when you think about it… not Stu Owen explains… Stripped down, the Lambretta’s transmission looks much simpler and easier to understand.īut ingenious design. Of the Lambretta engine is the gearbox and its various options, but it doesn’t ![]()
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