I ran the Izumi V for a while, until the little bolt and nut that holds it together came apart while I was flying along at about 30. Heard a rattle and something fall, and then wheeee, no pedal resistance. I only trust the spring clips now.
I ran an Izumi ESH for 3-4 years. Loved them except for the price. Never had the screw fail. The nut came off a couple of times but the screw always held. I totaly recommend these chains.
last year I had to replace the chain ring and cog but did not a have a new chain. No way was I going to put an old chain on a new CR and cog. Went to several lbs and the best chain I could find was a Z510 HX. I have been riding on that since last fall and I have to admit it is nice. It ws quite and I have had no problems.
Right now it is starting to get loud, I know it is worn and I will replace soon. I am curious about the bushing /non bushing debate. I may have to try the White star chain...
Has anyone else noticed that when you first get a new drive train it is pretty quite. You ride on it a little then it is the BEST for a few months. Then the chain gets worn and it starts getting loud. Then the whole cycle starts over again?