Thats interestting for sure. I have about 7500 on my chain...I've wiped it down once with wd-40. Lube it well every couple of thousand miles maybe, and ride hard. No clutch wheelies, just alot of rolling on the power. My chain looks like new and will go at least another 7500 miles easily. I think one of the main differences is I never ride in the rain or mud. My chain never really builds up any dirt to speak of, thats why the seldom wipe downs. And I've noticed a good lube will stay on a chain alot longer than you think. After several thousand miles I can still rub lube off on my finger. And the chains still quiet I had a friend that constantly lubed his chains, and he went through them twice as fast as me, plus they stretched like nobodies business. And they were always so wet from lube they collected grit like a bum collecting cans He went to lubing way less often and gets comparable life to mine now. I should probably lube and clean more, but I also think you can over-do it
When I put my last (current) chain on, I decided to start using a silicon spray lube and just spray it down after every ride or so. Out here, we have a lot of blowing dirt, dust and sand and when I was using that chain wax, the chain would collect a lot of grit which had to be cleaned off along with the wax residue and it was just nasty. Still only got 11,000 miles out of the chain.
The other thing I tried to do was just not keep the chain so blasted tight. If you adjust it while sitting on it, you get a better tension. Still didn't help.
dambit.
Oh, well.
--Wag--