It had been well-known from the early 20th century for its simplicity of use when compared to absolutely guide gearboxes of that time.  The gear ratio is definitely the ratio amongst the input and output gears. The driving gear and pushed gears in a gearbox determine the gear ratios. In https://franciscoaecbx.blogdanica.com/34105412/the-ultimate-guide-to-automobile-gearbox