BRAND NEW
WILL BE SHIPPED WITH INSURED 2-DAY MAIL WITHIN 24 HOURS
COMES IN THE ORIGINAL, UNOPENED PACKAGING
NOT A FACTORY SECOND ITEM
NOT A RETURNED ITEM
ABSOLUTELY FLAWLESS
31.8 mm Diameter
Anti-chain drop device
Allows the front derailleur to be adjusted for strong downshifts
If not using front derailleur the device can act as a chain guide
072774162307