Replacing your mountain bike chain is not a mandatory trip to the bike shop although you will need the right parts and tools for the job. At BlueSkyCycling, we offer a great selection of mountain bike road, BMX, and single speed chains and chain protectors for phenomenally low prices. Before selecting a bike chain, remember that your new bike chain has to be compatible with the drive train on your bike. Not sure what bike chain will work with your bike? Feel free to contact us 1-800-585-4137.