21-Gear Derailleur Set 2:1 Pull Ratio Front and Rear Derailleur Kit Cycle Lever Gear Selector Set Lightweight for DIY Hobbyists

Complete Drivetrain Solution: enhance or build your bike with this comprehensive set of cycle components, including lever gear selector s, a front derailleur, and a rear derailleur for a full system overhaul.

Fluid 21-Speed Change Ing: Experience precise and reliable gear changes with this 21-speed gear change system. The lever gear selector s provide intuitive control, allowing you to effortlessly move through through 3 front and 7 rear gears.

Optimized Performance: Engineered with a 2:1 pull ratio, this 21-gear derailleur set ensures responsive and consistent change ing action, making it a dependable choice for various riding conditions.

Versatile Compatibility: This mountain bike gear selector groupset is designed for wide compatibility, featuring a front derailleur that accommodates 31.8-34.9 millimeter seat tubes and a rear derailleur that supports up to a 32T flywheel.

Lightweight & Long-Lasting: perfect for DIY bike builders and hobbyists, this front and rear derailleur kit is constructed from a combination of long-lasting plastic and metal, offering a lightweight yet strong solution for your cycling needs.