1. Transmission Chains
Power tranny chains are classified into six major organizations.

1.1 Standard Roller Chains. These chains are created for general usage.
1.2 POWERFUL Chains. These chains possess higher tensile strength and greater transmission chain fatigue power.
1.3 Lube-Totally free Chains. These chains have longer use life than standard chains without lubrication.
1.4 Environmentally Resistant Chains. Chains with special corrosion resistance.
1.5 Specialty Chains, Type 1. For particular applications.
1.6 Specialized Chains, Type 2. For general designs.
Within these six groups, there are many types of chains available