Yamaha launched the YZF-R15 S for the Indian market based on the customer feedback. The Japanese manufacturer claims that there were many consumers who wanted to buy R15 version 2.0, but were put off because of the uncomfortable rear seat. The single-piece seat on the R15 S is more comfortable for the pillion rider than the raised step seat on the standard bike. Mechanically, there are no changes in the R15 S. The bike continues to be powered by the same 150cc single-cylinder liquid-cooled engine. This mill produces 16bhp at 8500rpm and peak torque of 15Nm at 7500rpm and is mated to a six-speed gearbox