Facebook Twitter LinkedIn Pinterest Bluesky Threads What is this plastic pointy thing near my chain?(almost touching it) by penis_not_happy Bicycling Bike Bike Repair Biking Cycling Repair
terrymorse on April 8, 2025 12:27 am It’s called a chain catcher. It prevents the chain from dropping off the chainring to the inside. Some people call that style of chain catcher a “[dog fang](https://dedaelementi.com/dog-fang-chainprotector)”.
MinestroneCowboy on April 8, 2025 12:29 am It’s a chain keeper to prevent the chain falling off the ring in lower gears. These were common on 1x drivetrains before narrow-wide chainrings were invented, and are still a good economical option.
5 Comments
Is it there to prevent dropping the chain?
It’s called a chain catcher. It prevents the chain from dropping off the chainring to the inside.
Some people call that style of chain catcher a “[dog fang](https://dedaelementi.com/dog-fang-chainprotector)”.
Chain catcher.
It’s a chain keeper to prevent the chain falling off the ring in lower gears. These were common on 1x drivetrains before narrow-wide chainrings were invented, and are still a good economical option.
a boopsnout