Description
Mountain bike derailleur pulley-- - easy to install and operate. the precise design will ensure its practicability in the work of highly performance..Bike drivetrain components-- suitable for with rear derailleur of 11t and 13t. great bike rear derailleur replacement.Derailleur wheels-- suitable for 11t and 13t rear derailleurs. great bike rear derailleur replacement.Deralleur part pulley-- - 11 teeth rear derailleur accessory. easy to use and install with durability..Rear derailleur pulley-- - aluminum alloy material with maximum endurance for use.