RK 420MXZ Heavy-Duty Chain for Surron Lightbee X and Talaria Sting.
See reference chart below for sprocket size and chain length.
These lightweight racing chains were developed using the same advanced alloy materials and manufacturing technology as 520MXZ4. Both 420 and 428MXZ racing chains are the lightest and strongest in their class, giving you the best value-performance rating of any motocross racing chain in the world today. Made for the serious motocross racer with all components heat-treated for high performance durability. Feature chromoly steel construction with seamless rollers and bushings, and oversized alloy pins for added strength. Max 150cc max for street or offroad use. 5,400 Lbs./ft Tensile Strength.
This chain comes in 2 sizes. If using a sprocket smaller than 54 tooth, you should purchase the 110 link length. If using a sprocket larger than 54 tooth, you should purchase a 120 link length.
|Sprocket Size (Teeth)||Chain Size|
|42 Tooth||104 link|
|48 Tooth (oem size)||106 link|
|52 Tooth||108 link|
|54 Tooth||110 link|
|56 Tooth||112 link|
|58 Tooth||112 link|
|60 Tooth||114 link|
|64 Tooth||116 link|