Come on man don’t be lazy! Having a gear indicator is a major plus in my opinion. It’s just a plug-in mod, finding the correct correctors is the first hurdle. One of the connectors is hidden under electrical tape but I was able to find it. Once installed, the bike has to be on a rear stand and run it through the gears to calibrate the new gear indicator. For me, it was well worth the time. It has worked flawlessly since installation.