Full steel construction
Gear Drive Ratio :
13 : 1 - Ultar High Speed (Flat) Suitable Spring : 110-120
16 : 1 - High Speed (Flat) Suitable Spring : 120 spring or lower.
18 : 1 - Normal Torque (Flat) Suitable Spring : 130 Spring or lower
32 : 1 -Ultra High Torque (Flat) Suitable Spring : 160 or above
100 : 200 -Torque (Helical) Suitable Spring : 140-150
100 : 300 - High Torque (Helical) Suitable Spring : 150 - 160