Cycle tyres are narrow in width, but have a rounded surface and the contact with the road surface is minimal. Whereas, tyres of four wheelers are wider and have a flat surface. When the need for balance is more in two wheelers than in four wheelers, why cycle tyres are made rounded in shape? what are the benefits?
2006-10-11 19:19:37 · 14 answers · asked by Nana 1 in Science & Mathematics ➔ Engineering
The rounded tire surface on a two-wheeler allows the tire to deform into a partial cone shape which facilitate turning as you lean. When you lean, the edge of the tire on the inside of the turn becomes a smaller effective radius than that of the center of the tire. In other words, it behaves like a cone. And what does a cone do when you roll it across a plane surface? It goes in a circle.
A flat bottomed tire would be much harder to steer by leaning.
WK
2006-10-11 21:06:05 · answer #1 · answered by olin1963 6 · 0⤊ 0⤋
Bicycles are peddled manually. Having a flat surface tyre would mean more resistance from the ground, that is, more energy would be required to peddle it. Smaller the area of contant between tyres and the road, lesser will be the force required. That is why racing bicycles have thinnest tyres.
Broader tyres are helpful in terrains where surface is not even and more contact area is required to keep the balance. But on good smooth surface, speed takes the priority and hence it is prefereable to have thinner tyres.
2006-10-19 11:46:46 · answer #2 · answered by Shalabh S 2 · 0⤊ 0⤋
As there is the difference in the size of the cars, four wheelers and cycle therefore the tyres have different shape.
2006-10-14 13:04:35 · answer #3 · answered by Anonymous · 0⤊ 0⤋
there are many aspects behind ur question, one is to reduce the frictional force which acts on the tyre , other is the banking of the roads, moreover in 4 wheelers the driving mechanism is controlled by axles & in 2 wheelers , the power is transmitted by belts & chains, axles are used when the load is heavy & chains can be used to transmit power when the load is less,
also from the mileage point of view there is difference between the tyres
2006-10-12 03:17:32 · answer #4 · answered by Anonymous · 0⤊ 0⤋
The need for banking which is requried when the cycle is turning is one of the reasons for the surface being curved with a line contact on the road.
Also, if the surface was flat like in motor vehicles, the cyclist will need to exert that much more force to move the cycle, since with increase in surface area the inertia will also increase.
2006-10-12 02:56:00 · answer #5 · answered by cooldude 3 · 0⤊ 0⤋
A cycle tyre must keep contact when banking, and the contact patch must be similar when going straight of banking into a turn.
Four wheelers do not bank around corners.
2006-10-12 02:22:48 · answer #6 · answered by Holden 5 · 0⤊ 0⤋
Wheels are designed to provide sufficient braking action, to reduce friction and also to withstand load and transmit it to ground. Design considerations are different for cycles, motor driven two wheelers and four wheelers.
2006-10-12 05:01:45 · answer #7 · answered by Anonymous · 0⤊ 0⤋
When you turn you lean on a angle reducing grip and balance the flat surface, the rounded surface increases grip.So when you turn you dont fall over.
2006-10-18 19:12:30 · answer #8 · answered by craftyboy 2 · 0⤊ 0⤋
to keep touching the ground. So when cycle turn left/right the rider will take inside angle. The tire still have same resistance
2006-10-12 02:52:14 · answer #9 · answered by safrodin 3 · 0⤊ 0⤋
why is a banana not straight ....
historical reasons it was the easiest way to make the tyres as they are now. there is no need to change this because they are sufficient now
2006-10-12 03:25:11 · answer #10 · answered by gjmb1960 7 · 0⤊ 0⤋