I love it when I can MacGyver a cheap and effective solution to a problem. I’ve been looking around lately for a device for preventing chain suck, because I’m concerned about damage to my aluminum Fatback frame. Unfortunately, I couldn’t find one locally, and online reviews of several commercially manufactured models were mixed.
With a helpful idea from a sales guy at a big-box hardware store, I came up with this arrangement. I bought a foot of vinyl tubing for 41 cents, then cut a short piece and slit it down one side so I could wrap it around my drive-side chainstay. I clamped it down tight with three zip ties, positioning them so they would help block a chain from entering the space between the bike frame and the front chainrings.
It ain’t the prettiest bike accessory in the world, and it’s certainly not indestructible. But it’s light, it’s cheap, and the combination of zip ties and vinyl should provide a decent buffer for at least a couple of chain-suck incidents.
And if the whole thing gets ruined in the process of protecting my frame, I can install a new one for next to nothing.