In April/May, I ordered three chain kits (KLR650.com SuperLlinks chain kit) plus additional spare master links from KLR650.com. Late June, we left (4 KLRs) Calgary for Prudhoe Bay all with brand new chains/links and sprockets. At about 3500 miles, one of the KLR (1) broke his chain . The master link was found broken. No damage caused and we replaced the link. At about 4,000 miles, a second KLR (2) (different bike, different installer) broke his chain :eek1. The master links again broke. This time some limited damage occurred with the chain guard, case grinding, engine blockage and a cut wire. A third KLR (3) (mine) was having the exact same set-up (installed again by a different person). I inspected the chain and found that one of the chain roller was broken and the roller sleeve was missing. As a precaution a new Master Links was installed until I can find some better replacement. Upon arrival at Whitehorse, we obtained three DID master links which we immediately install to replace the suspected links. At 6,500 miles, KLR no. 2 broke one of its sideplate (not at the master link but adjacent to it). We had to grind off the defective link, find a used inside link and tie it up with some master links to allow him to return to Calgary. It appears that there are some serious deficiency with the SuperLinks chain provided by KLR650.com. Batch problem, lower quality chain, i do not know. I heard that many people have been using these chains in the past without problem. However, I received a note from another KLR user in Quebec that he recently had the same problem. Three bikes having the same chains/link/sprockets installed by three different persons all broke their chain between 4000 and 6000 miles. We were kinda lucky that this did not turn into a major problem. When we installed the DID links, it was obvious that the design was completely different. The DID link sideplate was pressed fit onto the pin while the SuperLinks ones were not. I though I would just pass on our experience.