Chain kit EK - Zlat chain 520 RRSM, Non-sealed, CHK front sprocket SUPERSPROX, CHK rear sprocket SUPERSPROX for KAWASAKI KX 250 2T 1982-1986

This highly specialized chain kit features chains designed for road and circuit racing. The components combine minimal friction with the necessary durability under extreme conditions, offering high resistance to impacts and wear.

Chain EK RRSM

Narrow Racing Chain
EK’s Road Race / Supermoto chain is the most narrow 520 pitch chain on the market. When you’re serious about racing, this chain provides the lightest weight possible without compromising strength and dependability. Also available unsealed in 415 pitch for smaller applications.

EK’s SX-Ring is an even slimmer profile racing specified seal utlising the same ‘X’ style design that provides 40% less friction than a normal O-ring seal. Combining this with the extra low profile allows this seal to achieve the best wear to use ratio of any QX-Ring option. This seal is exclusive to EK’s narrow racing chain line ‘RR/RRSM’.

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 Racing steel sprocket

Supersprox Racing Steel Sprockets in sleek black finish are designed for both street and off-road motorcycles, developed on world endurance race tracks to meet high-performance demands. They feature laser-cut weight-reduction design to lower rotational mass, extra durable teeth for longer life, and tri-zinc electroplating to prevent rust and corrosion.

PDF EK CATALOG
PDF EK chain product info_R Series