Originally Posted by
VaBeachTennis
I can swear that it creeped up on me, it didn't start out that loose, I am going to recheck the washers. I try not to over tighten things, so I may just have to re-adjust the chain tension and tighten it up a little more than I did the last time.
Get serrated washers. Or better yet, track nuts with a built in serrated swivel washer and tighten them down really well. You can get the nice track nuts in a pack of 4 at PorkchopBMX.com. Two are 24tpi and two are 26tpi so you are ready to rock, front and rear. Shiny and sanitary.
BTW. KMC makes a 3/32 chain that is designed specifically for single speed/fixed gear drive trains. The plate's shape and thickness are just like 1/8 chain, it's just narrower. I run one on one of my bikes and it can't be derailed, even with a screwdriver or something else to encourage it to jump the ring.