Chain kit EK - Zlat chain 520 SRX, X-ring (X, NX, QX, XS), CHK front sprocket SUPERSPROX, CHK aluminium CHK rear sprocket SUPERSPROX for GAS GAS MC 250 2001-2009

This chain kit offers great value for many street, adventure, and off-road motorcycles. It provides 1.5–2x longer lifespan than conventional O-ring chains while maintaining a highly affordable price.

Chain EK SRX

High-Performance QX-Ring Chains
QX-Ring provides 1.5-2x longer chain life. SRX2 series chains include lightening holes and a high level of craftsmanship.

SRX series excels in the balance of performance and cost-effectiveness, earning the favor of many users. While being a long-standing product, but it is incorporated improvements match with the times and the latest technology.

Quadra X-ring (QX-Ring) is a slim profile chain with 40% less friction than a normal O-Ring chain and 150% better endurance. Used for a variety of SRX2, 420SRX and 428ZVX series chains.

Supersprox Front Sprocket

Supersprox countershaft sprockets are factory-team spec parts (used in WSBK, MXGP, and Rally) made from ultra-durable, carbon-impregnated SCM-435 (18HGT) steel for maximum strength. They feature a lightened design with radial holes or slots, an ultra-hard surface layer to reduce chain friction, a black oxide coating to prevent corrosion, and self-cleaning grooved teeth on off-road models to extend chain and sprocket life.

Supersprox Aluminium rear sprocket

Used in racing since 1959, Supersprox Aluminum Rear Sprockets are the ultimate choice for maximum weight savings. Precision CNC-machined from world-class 7076-T651 aluminum, they feature a special tooth design and mud-clearing grooves to extend chain and sprocket life, finished with high-quality durable anodizing in various colors.