On a bicycle should the seat be lower than the handlebar, or at the same height?




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Does it differ between guys and girls, or height of a person? Or what you use your bike for? Or what muscles you use when riding it?

One way you have to lean over almost completely horizontally

The other way you sit upright with your arms extended in front of you

Is there a reason and a preference?



Answer
What you are asking is actually specific to the style of the bike primarily, and the build of the rider secondarily.

An aggressively built road bike is going to put the rider in a very stretched out position when riding in the drops, which is aerodynamic, but not too comfy. A road bike built for more recreational users will often have a slightly less stretched-out position for the rider, but is still more aerodynamic than other styles of bikes. This is just for speed, nothing else.

A hybrid, mountain, cruiser, or comfort bike will typically have the ride more upright, but this again varies by bike; the really old fashioned type will have the rider sitting almost straight up, where a mountain or hybrid will have you leaning forward a bit. This is so you are more comfortable on the bike, and have better control over the steering, especially on a mountain bike.

As for saddle height, men tend to ride with their saddles higher than women, which is partially a function of height, but also due to having longer arms, and needing to be back from the handlebars a bit. Women usually don't have their saddles at or higher than the handlebar height, even on road bikes. On mountain, hybrid, comfort bikes, etc., the saddle is typically lower than the handlebar height for both genders. The preferred height varies due to physical differences in the riders. On a mountain bike, you need to be able to stand up when going over certain terrain, and need enough space so that you don't get rammed by the saddle if you go over a big bump.

Muscles used in riding are your quads primarily, but it also works your calf muscles, and your hip flexors. Your back and shoulder muscles can get sore from riding, but aren't really being worked when cycling.

What are the different types of motorcycles?




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Answer
There are three basic categories of street motorcycles: full dress or touring bikes, cruisers and sport bikes. Though some bike designs tend to bridge the gaps between these categories, most motorcycles fall easily into one of the 4groups
1st-Full dress motorcycles are so-named because of their extra equipment to make long rides or touring more convenient

2-Off road motorcycles include dirt bikes designed with tall frames and high tailpipes that won't bottom out. These motorcycles have knobby tires and lack street gear or license plates

3-A hybrid dirt bike, known as an enduro, has a headlight and license plate and is street legal. Stock tires are called combination tires and look like "dull" knobby tires.
2-Though touring bikes are beautiful, the motorcycles most closely associated with the legendary biker image are cruisers, which include customized choppers

4- Other off road motorcycles include the four-wheeled ATV (All Terrain Vehicle) or quad racer




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