Shimano is issuing a voluntary recall of some bonded 11-speed Hollowtech II road cranksets produced before July 2019 for a possible bonding separation issue.
The company has received more than 4,500 reports about separation issues. Of those, at least six riders were injured including bone fractures.
To remedy this situation, Shimano will have applicable, pre-July 2019, cranks inspected by Shimano authorized retailers. Shimano will replace any cranks that fail the inspection process. There is no need for further action for cranks that pass the inspection process.
The CPSC has reviewed and approved the voluntary Corrective Action Plan that Shimano has proposed. This is designed to give consumers multiple ways to determine if a crank shows a possible bonding separation issue. If so, the plan is designed to swiftly remove any possible safety hazard to consumers.
Shimano Cranks Affected
Not all Ultegra and Dura-Ace cranks need to be inspected. Only cranks produced before July 2019 need to be inspected, and the way to know if your crank should be inspected is to identify it in step 1 below.
Affected models are DURA-ACE and ULTEGRA branded cranksets with the following model numbers:
— ULTEGRA FC-R8000
— DURA-ACE FC-9000, FC-R9100 and FC-R9100-P.
The model numbers are stamped on the inside of the crank arm near the bottom of the arm. If the model number on your crank arm matches the numbers above, pursue further action to replace. If your number does not match, no further action is needed.
The Consumer Product Safety Commission has more information about the recall along with a list of the two-letter production code on the crank arm. See these codes and other information here about the recall. According to the CPSC, Shimano “has received 4,519 incidents of cranksets separating, and six reported injuries, including bone fractures, joint displacement and lacerations.
For more information about the recall visit the Shimano site.