Posted on 9th, January 2012 about Plasma Chain Device
re: stephen pearce review. reading this review i think the problem isnt with the device itself, sou nds like there is a bent chainring in the equation somewhere. there is only one moving part, the roller on the bottom. the chain has to go all the way around the chain ring before it gets to the roller so my guess is youve got a bent tooth causing the chain to derail.