Shimano Dura-Ace Di2 ST-R9250-L Dealer's Manual

Shimano Dura-Ace Di2 ST-R9250-L Brake Lever manual cover
Pages 56
Year 2022
Language(s)
English en

Shimano Dura-Ace Di2 ST-R9250-L Brake Lever Specification

The Shimano Dura-Ace Di2 ST-R9250-L Brake Lever represents a pinnacle of precision engineering and advanced cycling technology. Designed for the discerning cyclist, this brake lever integrates seamlessly with Shimano's renowned Di2 electronic shifting system, offering unparalleled performance and reliability. The lever employs a refined ergonomic design that ensures optimal comfort and control, allowing for intuitive and effortless braking and shifting. Constructed from lightweight materials, it contributes minimally to overall bike weight while maintaining exceptional durability. The ST-R9250-L features enhanced reach adjustability, accommodating a wide range of hand sizes and preferences, which ensures a personalized fit for every rider. The brake lever's electronic functionality is powered by Shimano's cutting-edge Di2 technology, which provides fast, precise gear changes at the touch of a button, even under load. The system's wireless connectivity simplifies installation and reduces cable clutter, while the lever's integration with Shimano's E-TUBE PROJECT app allows for extensive customization and firmware updates, ensuring the system remains at the cutting edge of innovation. The Dura-Ace Di2 ST-R9250-L Brake Lever is compatible with hydraulic disc brakes, providing powerful and consistent stopping power in all weather conditions. This lever is part of Shimano's flagship Dura-Ace R9200 series, which is engineered for professional-level performance and represents the culmination of Shimano's decades-long expertise in bicycle componentry. Overall, the Shimano Dura-Ace Di2 ST-R9250-L Brake Lever is an exceptional choice for cyclists seeking top-tier performance, advanced technology, and customizable options in their braking and shifting systems.

Shimano Dura-Ace Di2 ST-R9250-L Brake Lever F.A.Q.

How do I pair the Shimano Dura-Ace Di2 ST-R9250-L Brake Lever with the rest of the Di2 system?

To pair the Shimano Dura-Ace Di2 ST-R9250-L Brake Lever with the Di2 system, ensure all components are connected. Press and hold the button on the junction box until the LED starts flashing. This puts the system in pairing mode. Then, press the button on the brake lever until the LED flashes to complete the pairing process.

What should I do if the shifting is not smooth on my Shimano Dura-Ace Di2 ST-R9250-L Brake Lever?

If shifting is not smooth, check for firmware updates using the E-Tube Project app. Also, inspect the wiring for any damage or loose connections. Ensure that the derailleur hanger is aligned properly and the drivetrain is clean and well-lubricated.

How can I adjust the reach on the Shimano Dura-Ace Di2 ST-R9250-L Brake Lever?

To adjust the reach on the Shimano Dura-Ace Di2 ST-R9250-L Brake Lever, use a 2mm hex key to turn the adjustment bolt located near the lever pivot point. Clockwise adjustments bring the lever closer, while counterclockwise adjustments move it away.

What is the procedure for charging the Shimano Dura-Ace Di2 ST-R9250-L system?

Charging the Shimano Dura-Ace Di2 system involves connecting the charger to the junction box. Plug the charger into a power source and connect the other end to the charging port on the junction box. The LED will indicate the charging status. Full charge takes approximately 1.5 hours.

How can I perform a reset on the Shimano Dura-Ace Di2 ST-R9250-L Brake Lever?

To perform a reset, disconnect the battery from the system for a few minutes and then reconnect it. This may help resolve minor electronic glitches. Always check for firmware updates after a reset.

What are the signs that the Shimano Dura-Ace Di2 ST-R9250-L Brake Lever needs maintenance?

Signs that maintenance is needed include sluggish shifting, unusual noises during operation, or a lack of response from the levers. Regularly inspect for wear and tear, clean the components, and ensure firmware is up to date.

Is it possible to customize the shift functions on the Shimano Dura-Ace Di2 ST-R9250-L Brake Lever?

Yes, you can customize shift functions using the Shimano E-Tube Project app. Connect your system to the app via Bluetooth or a wired connection and adjust the shifting patterns to suit your preferences.

How do I troubleshoot a non-responsive Shimano Dura-Ace Di2 ST-R9250-L Brake Lever?

If the brake lever is non-responsive, check the battery charge and connections. Ensure the connectors and cables are secure and undamaged. Use the E-Tube Project app to check for error codes and update firmware if necessary.

What is the recommended cleaning process for Shimano Dura-Ace Di2 ST-R9250-L Brake Lever?

Clean the brake lever using a damp cloth and mild soap. Avoid using high-pressure water or solvents. Regularly check for dirt or debris that may affect performance, and ensure the lever area is dry after cleaning.

Can I use the Shimano Dura-Ace Di2 ST-R9250-L Brake Lever with non-Di2 components?

The Shimano Dura-Ace Di2 ST-R9250-L Brake Lever is designed to work specifically with Di2 components. Using it with non-Di2 components may result in compatibility issues and is not recommended.