Why do they use gear bicycles specifically?
When the riders are climbing uphill the surface would be quite narrow and rough. They have to put in lot of extra effort to ride their bicycle towards the hilltop. This is where gear bicycles come handy. Let us see about gear ratio and the gear setup of mountain bikes in detail first. This will help us understand the gear mechanism better. Gear ratio Mountain bikes have one small and one big gear. The smaller one turns 20 times to make the bigger one turn once. This 20:1 is referred to as gear ratio. The bigger gear gives the speed to bicycle and the smaller one initiates this by powering it. The amount of power needed to obtain a certain amount of speed is called gear ratio. As more and more gears are used the power increases and in turn the speed also increases. Gears setup in mountain bikes Normally up to 27 gears are present in the mountain bikes. 9 gears are present at the back and 3 sockets are present in the front. This is much more than the normal gears used in common road bicy
