GEDGETS FAM Racing Bicycle Gear Set Combe Front and Rear Pack of 12 Items Bicycle Brake Disk
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Complete gear set kit. Provides 21 speed options. Contains all items required to upgrade gearless cycle into a geared cycle with 21 speed ratios. Can also be used to upgrade geared bicycle with 6 or 18 speed ratios into a 21-speed bicycle. Easy installation. Works with all sizes and types of bicycles.
