Sram PC850 7/8 Speed Chain Grey 114 LinkGrey links,8-speed,Powerchain II,Powerlink silver .Extremely strong. Incredibly precise. SRAM\'s PowerChain II increases front and load shifting performance without sacrificing rear shifting precision. The Step2™ riveting process increases the Push Pin Power for increased strength and durability.  THINGS TO REMEMBER • An equally smooth operator on city bike paths and country trails • PowerLink® \"no weak link\" technology lets you insert, press, and lock to join links. No tools needed