Sprockets and chain are ideal for transmitting motion over long distances. A chain consists of a continuous set of links that ride on the sprockets to transmit motion. The REV ION Build System is designed around #25 chain using compatible #25 sprockets. It is important to have proper chain tension when using sprockets and chain. The loop of chain must be the correct length, or have outside support, to maintain this tension.

The REV #25 Chain Tool allows teams to easily break and re-assemble #25 chain. The mandrel is used to push out the chain pin. If using master links, the pin can be completely removed, but the depth guide screw allows the option of partially pressing out the pin and then re-assembling without master links.

Creating a loop of chain requires breaking off the correct number of links and joining the ends together. Chain can be broken using the Chain Tool and joined using Master Links. Instead of using a Master Link, the Chain Tool can also be used for a stronger joining method.