Note: Currently, most countries don't allow the shipment of batteries, therefore, we'll remove the batteries before shipping. Upon receiving your order, you'll need to following batteries. The seat tube battery box is included.

The LTWOO electronic derailleur uses two 14500 lithium batteries two CR2032 button batteries (3V) and two CR1632 (3V). 14500 battery capacity: 800mAh, 3.7V, 2.96Wh.

The 14500 batteries should be installed in the Seat Tube battery box, the CR2032 batteries should be installed inside the controllers, the CR1632 batteries should be installed the brake levers.

Please buy the batteries locally and check whether the batteries have been activated. (If the battery casing has been removed, the battery must be reactivated using a charger.)

Activation Method:

For older models, use the magnetic charging cable to recharge and activate the unit.

For newer models, the activation process for the front derailleur remains the same as for older versions.

In the end, please perform the re-pairing procedure.

The eRX TT set is compatible for the 2x12s, 2x11s and 2x10s, you can setup by connecting to the LTWOO APP.

For more installation instructions and installation videos, please visit the LTWOO official website. You are also welcome to contact the customer service at any time.

Packaging: Without batteries, mineral brake oil and official box.

Warranty: 2-year official warranty. If you encounter any problems during installation or usage, please contact our customer service at any time. We will promptly assist you in resolving the issue.

• eRX TT V3 Updates:

  Re-engineered shifters with significantly enhanced grip ergonomics

  
  

  Relocated charging port to front derailleur (TYPE-C interface)

  
  

  Eliminated water-ingress risks from rear derailleur’s magnetic charging port

  
  

  Upgraded to 10,000 RPM motor derailleur:

  ✓ Increased thrust force

  ✓ Faster response speed