DJC Ceramic Bearing Pulley Wheel 11T 12T 13T 14T MTB Road Bike Jockey Wheel Narrow Wide for Shimano SRAM Derailleur

Upgrade your drivetrain with smoother rotation, stronger chain retention, and lightweight performance.

Key Features

• 689 Hybrid Ceramic Bearing – Ultra Smooth & Low Friction
  Faster rotation, reduced noise, longer drivetrain life

• Improves Shifting Performance
  More efficient drivetrain, smoother riding

• Narrow-Wide Tooth (12T / 14T Only)
  Improved chain retention, reduces chain drop

• CNC Aluminum Alloy Body
  Lightweight, high strength, durable

• Multi-Speed Compatible
  Supports 7 / 8 / 9 / 10 / 11 / 12 speed systems

Tooth Type Difference

• 11T / 13T → Standard Tooth

• 12T / 14T → Narrow-Wide Tooth (Better Chain Retention)

Specifications

⚙️ Why Upgrade to Ceramic Pulley Wheel

• Lower friction → smoother pedaling

• Faster rotation → better efficiency

• Reduced noise → quieter riding

• More durable → longer service life

Upgrade Guide (Important)

• Top pulley (Guide wheel)
  Recommend same size or +1T only
  Too big may hit cassette

• Bottom pulley (Tension wheel)
  Can increase +1T or +2T
  Larger size = smoother rotation

Example

• If your top pulley is 11T → max 12T

• If your lower pulley is 11T → can use 12T or 13T

Package Included

• 2pcs × Pulley Wheel

• 4mm → 6mm Adapter

• 5mm → 6mm Adapter

Note:
5mm adapter is used in most cases (about 95%)