We've all been there: Seriously rough roads or mis-timed shifts can throw your chain off the inside of the chainrings. And like the oft-fashioned custom widgets designed and built by pro team mechanics on the eve of the cobbled classics, the K-Edge Clamp-on Chain Catcher acts as a safeguard against this nightmare. The difference being, you don't have to be a pro to have one.
Your chain will never again shoot inward beyond the inner chainring, giving you the confidence to slam it into the small ring at will, no matter what the condition of the road surface. The real benefits, aside from quick and worry-free shifts, are protection for your carbon fiber race bike and your chain will be right where you want it to be when you aim to grind your rivals into the tarmac. The clever part of Chain Catcher is the adjustment, really. The arm, that keeps the chain on your rings, drops down from a single stainless bolt that is used to make the attachment to the clamp. And it has a small set screw that allows for in/out adjustment when the fixing bolt is loose. The entire setup operation can be completed in just a few minutes.
The K-Edge Clamp-on Chain Catcher has its own clamp, so it doesn't require your bike frame to have a braze-on derailleur tab. So tab or no tab, it will work on your bike as long as the seat tube is round and the diameter matches the clamp. It mounts just below the derailleur. It's made from CNC-machined 6061 T6 aluminum in Boise, ID. It weighs 22 grams and is available in Black and Gunmetal and in two clamp diameters -- 31.8mm and 34.9mm.
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It's light and it works!
- Familiarity: I've put it through the wringer
Haven't dropped a chain since I got this. I have it set up a little differently than the instructions tell you to. I'll try and post of picture of it soon.