In this video I’m going to explain how to install a Deore XT Shark Fin chain deflector from 1989.

The Shark Fin is an elongated piece of plastic used to protect the chain stay. Near the front derailleur it ends in something resembling a shark fin, hence the name.

This shark fin has a curve, which means it also prevents the chain from ever getting caught between the tire and chainstay.

Besides the chain deflector itself, it also ships with an adhesive strip and two cable ties. Since this piece of equipment is from 1989, the adhesive turned out to be crap and wouldn’t do anything on my square chainstays.

I bought it new for €20.95 at a local webshop specializing in retro cycling hardware. This isn’t exactly cheap for a little piece of plastic, but they are not that easy to find nowadays.

Join the Facebook Group:   / 996447607429641  

I've also written a blog post with more information. If you want to read this article go to https://www.restoration.bike/bikes-an...

Visit my website for more bike restoration tutorials: https://www.restoration.bike/

Instagram:   / restoration.bike