RK GB428MXZ Heavy Duty RK Drive Chain - GB428MXZ60
RK racing chains have been the overwhelming choice of World Championship Teams for the past two decades!
They have benefited from their long-term OEM relationships with the major Japanese motorcycle manufacturers; RK has supplied original chains and chains for racing
All high-quality RK chains are made in Japan except the standard RKM series, which are from Malaysia
All RK chains feature quad-staked pin riveting, solid rollers and solid bushings, except the RKM and standard series, which have two-point riveting and curled bushings
They're all pre-stressed and pre-stretched for better performance with fewer adjustments
HEAVY-DUTY CHAIN (MXZ)â€¢All feature heavier side plates for more strength and resistance to stretch
MXZ racing chains are made for the serious Kart racer with all components heat treated for high-performance durability; chromoly steel construction with seamless rollers and bushings, and oversized alloy pins for added strength
Max. Engine Size: 125cc
Tensile Strength: 5,800
Wear Life Index: 300 (Wear life Index should be used as a comparison for probable wear life under identical circumstances. Think of it as a percent, with standard chains being 100)
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