Originally Posted by
andiewithanie
not a chainstay protector, but a guard/shield mounted inside the driveside chainstay near the rim to stop crap coming off the rear tyre onto the chain. i feel like i've seen something that does this but i cant recall where. any ideas?
I'd be making a shield from a tough waterproof textile like oxford nylon, maybe reinforced with wire sewn into the edges - a triangle zip-tied to the chainstay and seat tube, along the lines of a traditional skirt guard. Do you have a decent mudflap on the front fender? That's the most effective way of keeping road dirt and water off the chain IME.