The Yamaha YZF-R125 was introduced in 2008.
The R-125 is the 4-stroke successor to the TZR125. The R-125 takes design features from the bigger R1 and R6 but features a learner legal 125cc 4-stroke liquid-cooled engine. In 2014 the YZF-R125 received an update, the body was redesigned with the air intake now between the headlights, USD forks and improvements to the engine. The R-125's cylinder is the same as Yamaha's X-MAX 125cc.