My bike originally came with a fragile plastic chainring-guard. It broke pretty quickly and was never very good at keeping the big ring from ripping my leg open anyway, and certainly didn't help my ring slide over big logs.
I decided wanted to replace it, but I didn't want to get rid of the big ring. So I made this.
It's a PVC ring that has something to do with mounting toilets. I cut it and heat molded it with some boiling water to increase its diameter to be a bit bigger than my big ring. Then I mounted it to my big ring using the existing holes, although if I had not had holes, it wouldn't be a big deal to drill them.
Sure, I could have bought a bash from someone, but it was fun to make my own. 3 bucks for the ring, 2 for the screws and nuts and washers.
Mtbr's 2016 Winter Biking GearReviews and Roundups
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Thread: $5 Bash for a Triple