in two wheelers why some bikes have gear shiftting for 1st gear front & other...

  • Thread starter Thread starter abdulim
  • Start date Start date
Most bikes have only a toe shifter. The pattern is down for first and a sequence toe up motions to get the higher gears. A few bikes have heel and toe shift levers so that is where you might get the forward and backward concept of shifting. Most bikes have a standardized shift pattern mandated by government. So most modern bikes all use "one down and the rest up" shifting pattern. This scheme is important for safety so that all bikes are the same. It also means bikes can exported, or imported on a commercial scale and bikes fit the countries safety standards.

I had a british bike from the early '70s that had the shifter on the right side. Those right hand shift bikes have not been made since 1978, at least not for the American market. In the late '60s I had a small motorcycle that had a heel toe shift lever with the pattern of one back, three forward. Once again that was standardize to the one down scheme in later versions of that same bike.
 
????

I know of most bikes have gears that go up and down, not front to back.

The only thing I can think of what you are describing is the sitting position of the rider effects where the gear shifter should be placed (sport bikes typically set more in the middle of the bike (seems like it is in line with or "behind" the rider) because the rider's feet are swept back. On other bikes, such as cruisers and touring, the feet are more like a chair sitting position, so the gear shifters are closer to the front of the bike.

If that is not what you mean, well, all I can say is that it is manufacturer discretion and/or tradition.
 
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