
EK/JT 520H 13/51 Chain Kit - Ultra-Light Sprocket by EK CHAIN: a transmission kit designed for motocross, manufactured according to EK JAPAN standards and optimized to offer a good quality/price ratio and performance suited to off-road demands.
This kit is aimed at motocross riders looking for a ready-to-use transmission with a lightweight aluminum sprocket to minimize inertia. Suitable for Yamaha YZ 125 models from 1990 to 1992 — please check the fitment and adjustments on your model before installation. Sold as a complete kit: chain + sprocket + rear sprocket.