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The internal Shimano Di2 battery is typically located inside the frame and accessed through the seatpost opening. Its exact position and removal procedure can vary by X-LAB model, so consult the service manual for your specific bicycle before beginning any work.

Take care when removing the seatpost, as the battery wires and connectors may be positioned nearby. Do not pull on the wiring or force a connector. If the battery needs to be removed, replaced, or diagnosed, we recommend having the work completed by an authorized X-LAB dealer or a technician familiar with Shimano Di2 systems. After service, reinstall the seatpost using the specified insertion depth and torque value.

Torque specifications vary by bicycle model, component, fastener, and installation location. Refer to the owner’s manual supplied with your bike and check any torque markings printed beside the fastener or directly on the component.

Always use a calibrated torque wrench when installing or adjusting carbon components. Do not assume that one torque value applies to every cockpit, seatpost, saddle clamp, brake component, or drivetrain part. Exceeding the specified value can damage a carbon component, while insufficient torque may allow it to move during use.

If a torque value is missing or unclear, contact an authorized X-LAB dealer or X-LAB Support before tightening the fastener.

Drivetrain compatibility depends on the specific frame, model year, bottom-bracket standard, derailleur interface, and available component clearance. Consult the bicycle’s owner’s manual and product page to confirm its bottom-bracket type and whether the frame supports a Universal Derailleur Hanger (UDH).

The frame may also have limits for cranksets, chainring sizes, front derailleurs, rear derailleurs, cassettes, and electronic or mechanical shifting systems. Do not select components based only on the number of speeds or the appearance of the mounting interface. Confirm the complete drivetrain configuration with an authorized X-LAB dealer before purchasing or installing replacement parts.

No. Branta crank arms are currently designed for use with Branta-developed chainrings and are not directly compatible with Shimano or SRAM chainrings.

Branta chainrings are available in multiple gearing options, allowing riders to adjust their gearing while retaining the intended crankset interface. Before ordering a replacement chainring, confirm the crank model, chainring combination, drivetrain type, and frame clearance. An authorized X-LAB dealer can help identify the correct Branta chainring for your bicycle.