Light-Er is equipped with Birzman's patented 'Innovative Spring System', featuring spring steel that automatically binds with chains of different speeds, making it easy to drive out the pin quickly and accurately.

It's designed to cope with 9, 10, and 11-speed chains, and considering the ease, it dealt with a 1/8-inch track chain 7 and 8 speeds shouldn't be an issue either.

Anything to dislike? Well not really to be honest. The head and handle didn't fit perfectly flush which to be fair did nothing more than upset my OCD. It didn't get any worse with use as the fit was nice and tight. It weighs 80g so it's probably a touch heavy for a back pocket but in the long run it will stand up to plenty of workshop abuse.

On the whole, then the Light-er is a well thought out chain tool. The deep jaws and the spring clip mean once the chain is secure it's there to stay and the build quality and performance are brilliant for the price.