Dontcha hate it when your chain falls off after a gnarly downhill? Of course you could go with a derailleur guide but that usually limits you to a single chain ring on the front. Not a problem if you only go downhill but what about those of us who ride up too?
Enter the Wicked Racin Dualrailleur. This patent pending device locks your chain in place while giving you the ability to choose between two front chain rings. I’m told it’s pretty durable and that one rider has been using it for 2 years without a single chain drop.