This video shows you everything you need to know to repair your mountain bikes rear derailer. From dismantling, to putting it back together, position the chain, cutting the chain, releasing the cable, and giving your bike the love it needs. This is an extensive, yet easy to follow tutorial to keep your bikes maintenance up to date for an enjoyable and easy ride. You can use these instructions for any kind of bike really, but in the video we see the mountain bike. So gear up for a fun ride.