Third Eye Chain Watcher

Keep your chain where it belongs, on the rings! Mounts on the seat tube and prevents the chain from coming off to the inside. Adjustable hose-type clamp fits 1 1/8" to 1 3/8 seat tubes. Great for cyclo-cross or any bike with a persnickety front derailleur.


  • Simple and effective design
  • Used for Road or Cross
  • Best design on the market
  • $9.95
    Item is in stock


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    Posted on 5/20/2012

    Simple and effective way to alleviate the dreaded chain drop.


    Posted on 8/18/2006 6:36:10 AM

    This product works perfectly. My chain has not come since it was installed.