Checking and adjusting chain tension is a fundamental bit of maintenance, right up there with checking your oil and tire pressures. Very basic, pretty easy, and also really important! Run your chain too loose and it’ll slap around and may jump off the sprocket and throw you on your head. Run it too tight and you’ll wear out your chain and sprockets and inhibit rear suspension action. In this video from the MC Garage, Ari shows you how to check and adjust that chain for optimal performance and longevity.
Link to Motion Pro Slack Setter tool used in vid: http://mtrcycl.st/slacksetter