I was looking at the parts schematics on BikeBandit and thier description is just chain 50L. Does it have another name? Also, where can I find one that's cheaper than $121.00? I checked my parts bike out and that seems to be what's trashed on it. I'm almost scared to open the cases to see what happened when it broke. maybe 121 isn't that bad, that's what a decent O ring chain goes for.