Sram powerlink powerlock connector twin packevery chain is only as strong as its weakest link traditionally this was seen as being the connecting link in contrast the powerlink connection is just as strong and durable as every other link in the chain it can be opened and closed as many times as you want without using any tools sram powerlink connector features powerlink means no weak links important the 7 8 and 9 speed links have 2 sides and 1 spacer 10sp 11sp links are powerlock the