



EK/JT 520SROZ 15/45-122 Chain Kit - Standard Sprocket by EK CHAIN: a complete transmission set designed for the road. This kit combines a 520 pitch chain with a 15-tooth sprocket and a 45-tooth rear sprocket (122 links), ready to replace your original transmission and restore a suitable gearing for lightweight roadsters.
Compatible with many small displacement models, this kit is specifically listed for the Honda CB 125 F (JC64 / JC74) from the 2019 and 2020 model years. Ideal for replacement during a service, preventive change, or after wear, it installs following the manufacturer's tension and lubrication recommendations. Be sure to check the exact compatibility with your model before installation and to monitor alignment and tension after the first few kilometers. This kit offers a simple and visible solution to get back on the road with confidence.