Works-quality RK racing chain and front and rear sprockets in one convenient package All RK chains feature high carbon alloy steel solid rollers; bushings and pins Heat-treated and pre-stressed for maximum wear life and performance Kits include 520KZU ultraring chain with ultrathin O-ring; the Baja-winning 520SMO; MXZ XW-ring racing chains or quality TZ or KZ series non-O-ring chain Rear sprockets made of 7075 T-6 aluminum; unless noted; fronts made of casehardened steel
CHAIN AND SPROCKET DIRT KITS
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