Professional Motocross Chain for MX/SX

RK 428MXZ4 applies the HCR Pin and special alloy steel for component making, resulting in a tensile strength as high as 28.5[kN] with weight as light as 10[g/L].

RK 428MXZ4 features special alloy pins with RK special
HCR Treatment (High Tech Chromium Carbide Layered Pins) which
drastically improves the wear resistance of the Pin while absorbing shock loads from extreme jumps.

428 Motocross Chain 

RK 428MXZ are a reinforced Heavy Duty Chain Designed for Off-road Usage. Lighter weight but stronger chain compare to Heavy Duty !

428 MXZ4 Chain

Better fatigue strength compare to 428MXZ and MXZ1 !

The RK 428MXZ4 is developed with MXGP Factory Teams.

Brand:  RK
Vendor part number:  GB428MXZ4-140CL
Chain Size:  428
Chain Type:  428 MXZ4
Color/Finish:  Black, Gold
Master Link Connector: Clip
Material: Steel
Maximum Engine Displacement (Offroad): 150 cc
Model MXZ4 Series
Number of Links: 140
Seal Type: Non-Seal
Tensile Strength: 28,5 kN (6415 lb)
Weight: 1,00 kg/100 Links

RK CHAIN RK428MXZ4 GG 140C
12210393 / GB428MXZ4-140CL