Cubo de marcha interna para freio de roletes (8 velocidades)

Cubo de marcha interna para freio de roletes (8 velocidades)
  • Improved overall riding comfortability and efficiency
  • Smooth shifting performance even under high chain tension induced by E-bike motors
  • Improved shifting performance and efficiency (300% improved)
  • Improvement is suitable for both E-bike and non E-bike use