From the English traditional company "JT- Sprockets" we can deliver a high quality sprocket with 48 teeth for the Yamaha YZF R 125. The sprocket for the YZF R 125 has a pitch of 428 and fits perfectly to the original chain.
Inner diameter: 76mm
bolt circle: 100mm
Number of teeth: 48
Required chain length with standard gear ratio (14x48Z): 132 links