Shimano has launched a voluntary inspection and replacement program for some bonded 11-speed HOLLOWTECH II road cranksets produced before July 2019 for a possible bonding separation issue. - Shimano
This program affects the following models: Dura-Ace FC-R9000/FC-R9100(P) and Ultegra FC-R6800, FC-R8000. Please refer to the image below to locate the production code of your crankset. Affected production codes are:
For riders whose crankset are part of the affected batch, please fill up the form below. A timeslot will be communicated to you for you to send the bicycle to the store. For cranksets which include built-in power meters (e.g. Giant Power Pro, Stages, 4iiii), the technician will advise further at the point of drop-off.
For more information provided by Shimano Singapore, please refer to the following link.
Updated as of 25 November 2023
Example for image of crank arm batch code for driveside and non-driveside crank arm