Vintage Race Face Bash Guard Bashring 110mm BCD 5-Bolt NOS MTB Bike Canada Vintage Race Face bash guard bashring for mountain bike drivetrains and chainring protection. 110 mm BCD 5-bolt pattern for use with compatible compact cranksets and outer chainring positions. Part type: aluminum chainring bash guard designed to shield chainrings from impacts on trail and freeride bikes. NOS Race Face bash guard bashring with light storage wear.