Chain kit EK - Silver chain 428 SHDR, Non-sealed, CHK front sprocket SUPERSPROX, CHK rear sprocket SUPERSPROX STEALTH for KTM SX 85 2019-2020

This specialized chain kit is engineered for off-road racing. The components are optimized for low friction and high durability in demanding terrain, providing excellent resistance to impacts and mechanical wear.

Chain EK SHDR

High-Performance Race Chains

The 428SHDR chain range is one of the most elite 85cc motocross specific chains on the market. This heavy duty non-sealed chain range offers increased wear life compared to the standard series. The SH & SHDR options are a lighter weight, motocross focused version of the heavy duty series.

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 Stealth Rear Sprocket

Supersprox Stealth Bi-Metal Rear Sprockets feature a patented combination of steel teeth and an aluminum core. This design delivers 3× the lifespan of aluminum sprockets while being up to 30% lighter than all-steel alternatives. By reducing friction, they extend chain kit longevity, enhance bike performance and appearance, and are available in various colors to fit 99% of street and off-road motorcycles.

PDF Catalogue EK
PDF EK CATALOG