Shimano is recalling about 680,000 (and an additional 80,000 in Canada) Ultegra and Dura-Ace 11-Speed Bonded Hollowtech II Road Cranksets because the bonded parts can separate and break during use. This separation creates a significant crash hazard, and the firm has received 4,519 reports of these cranksets failing. These incidents have resulted in six reported injuries, including bone fractures, joint displacements, and lacerations. The cranksets were sold individually and pre-installed on bicycles from brands such as Trek and Specialized between January 2012 and August 2023.
The crankset parts can unexpectedly separate and break while a person is pedaling, causing the rider to lose control and crash. There have been over 4,500 reported failures of this product, including incidents causing broken bones and other serious physical injuries.
Consumers should immediately stop using the cranksets manufactured before July 1, 2019, and contact an authorized Shimano dealer to schedule a free crankset inspection. Only consumers whose cranksets show signs of bonding separation or delamination during the inspection will be provided a free replacement crankset and installation.
Affected cranksets have a two-letter production code on the backside of the crank arm where the pedals are attached.

Recalled Shimano Hollowtech Road location of two-letter date code on crank arm

Recalled Shimano Hollowtech Road Ultegra FC-6800 Crankset

Recalled Shimano Hollowtech Road Dura-Ace FC-9000 Crankset

Recalled Shimano Hollowtech Road Ultegra FC-R8000 Crankset

Recalled Shimano Hollowtech Road Dura-Ace FC-R9100P Crankset

Recalled Shimano Hollowtech Road Dura-Ace FC-R9100 Crankset
If you or a family member were harmed by this recalled product, you may have legal rights. Consider consulting a consumer protection attorney to understand your options for compensation.
This is general information, not legal advice. Go Backs is not a law firm and does not provide legal services.
AI-Enhanced Content: The summary, action steps, and risk assessment on this page were generated by AI from official government recall data to improve readability. This is not legal or medical advice. Always refer to the official agency sources below for authoritative information.
Sources: CPSC Notice ยท Raw API Response