A handy workshop time saver that makes determining the BCD of a crank or ring a cinch Simple to use; just put the pegs into the mounting holes or chainring bolts of the crank or ring you want to measure & the indicator arm will highlight the correct 4 or 5 bolt standard Anodized & permanently laser etched for a long life
Includes:: a centre to centre distance scale & reference chart for measuring other mounting pattern
Dimensions Made in the USA & covered by Parks legendary limited lifetime warranty