A motorcycle drive chain is an astonishing piece of engineering. It handles huge loads, provides an enviable level of mechanical efficiency and does it all in conditions which are often far from ideal, getting pelted with water, salt and abrasive filth from the road surface. Regular checking and adjustment when needed is vital for the condition of the chain, it’s longevity and the smoothness of your transmission. Chains that break or jump off the sprockets due to lack of attention can destroy engine cases and, at worst, have you off the bike.
Chains do not always wear evenly, so when you are adjusting the tension, rotate the rear wheel and check the chain at different points. Adjust it to give the correct play at the tightest point. Correctly looked after chains on even the most powerful bikes will give long, reliable service.