Replacement Redrock microFollowFocus Drive Gear

[sk810]

I bought a used Redrock microFollowFocus that was missing the drive gear. Redrock charges $45 for this little gear. Does anyone know a cheap alternative place to buy the gear?

http://store.redrockmicro.com/Catal...wFocus-Drive-Gear-0-8-film-pitch-upgrade.html