Wear Performance
Most correctly specified chain eventually has to be replaced due to elongation caused by wear between the pin and bush. Independent tests have shown that Renold Synergy outperformed the best of the recognised quality competitor chain by almost 6 times.  

Fatigue Performance   
Under conditions of continual heavy load or repeated shock loading, chain may need to be replaced due to breakage or fatigue. Tests have shown that Renold Synergy is significantly better than other leading brands. This is especially true as the loose fit connecting link plates were specially treated to achieve the same fatigue performance as the chain. Renold Synergy fatigue performance is not only measured as a chain, but as a chain system.