Race Face Cinch Direct Mount Chainring 30T Purple MFPN=TB00311800 This prevents it from opening

This prevents it from opening while you’re on the go

Try it and you won't be disappointed

Big Life Magazine 'Crush List' 2018

Then when you need to use the multi-tool

Race Face Cinch Direct Mount Chainring 30T Purple MFPN=TB00311800 This prevents it from opening7075 T6 aluminum direct mount ring to fit Race Face Cinch system splined cranks Narrow wide teeth prevent chain drop, updated tooth profile runs quieter Compatible with 9 12 speed chains, allowing a 1X set up on most any drivetrain Installs with a common Park Tool BBT 22 TECH SPECS ring type single (anti chain drop) mount Cinch DM 3mm offset teeth 30t oval round round color purple