Tired of sluggish gear shifts ruining your ride? Poor-quality derailleur pulleys cause chain drag, premature abrasion, and wasted effort. Our accurately-engineered guide wheels deliver exceptionally-smooth shifting you can feel. The high-strength steel bearings spin freely while the aerospace aluminum body sheds weight without sacrificing sturdiness. Whether you're tackling steep climbs or sprinting on flats, these pulleys keep your drivetrain running like new. Includes both 4mm and 5mm adapters for universal fitment - upgrade your 9/10/11-speed ride in minutes. Choose black or red to match your ride's aesthetic. Package includes: 1 pulley wheel + 2 adapters (20g total).

Specification:
Color: Black, Red (Optional)
Material: aluminum alloy
Diameter: 50mm/2in
Weight: Approx. 20g

Package List:
1 x Pulley wheel
2 x Adapters