Shimano defective crankset class action settlement

Shimano North America Bicycle and Shimano North America Holding agreed to a class action lawsuit settlement to resolve claims that certain Shimano cranksets are defective and dangerous.

The Shimano settlement benefits consumers who purchased, received, were given and/or owned a Shimano crankset manufactured before July 2019. This includes individuals who purchased, received, were given or owned a bicycle equipped with a Shimano crankset.

Shimano cranksets are bicycle components that connect the pedals to the bike’s bottom bracket. Shimano is a bike manufacturer that sells various bike components.

According to a class action lawsuit, Shimano cranksets are defective and dangerous. The plaintiffs claim that the cranksets can delaminate and separate from the bike, causing serious injury.

The Shimano class action lawsuit claims the company knew about the defect but failed to warn consumers. Instead, Shimano allegedly continued to advertise and sell the defective cranksets.

In September 2023, Shimano recalled certain cranksets manufactured before July 2019. The recall affected Ultegra FC-6800, Ultegra FC-R8000, Dura-Ace FC-9000, Dura-Ace FC-R9100 and Dura-Ace FC-R9100-P cranksets with certain production codes.

Shimano has not admitted any wrongdoing but agreed to pay an undisclosed sum to resolve the allegations.

Under the terms of the Shimano crankset settlement, class members can receive an extended warranty, enhanced inspections and reimbursement for replacement costs.

Class members are eligible for an extended warranty on Shimano cranksets. The settlement extends the duration of Shimano’s express warranty until July 29, 2027. This extension only applies to bonding separation and delamination of the crankset.

Class members are also eligible for enhanced inspections. Under the terms of the settlement, Shimano agreed to enhance the inspections offered under its recall. Enhanced inspections will include a magnifying device with enhanced lighting, an enhanced manual and more.

Class members can also receive reimbursement for replacement costs. Class members who replaced their cranksets due to delamination or separation can receive reimbursement for reasonable out-of-pocket costs for purchasing and installing a replacement crankset.

The deadline for exclusion and objection is Dec. 29, 2025.

The final approval hearing for the class action lawsuit settlement is scheduled for Feb. 2, 2026.

To receive settlement benefits, class members must submit a valid claim form by Aug. 4, 2026.

Who’s Eligible

Consumers who purchased, received, were given or owned certain Shimano cranksets or bicycles equipped with those cranksets before July 2019.

Potential Award

Reimbursement of documented repair expenses, extended warranty and enhanced inspections.

Proof of Purchase

Claimants must provide receipts, work orders, credit card statements or other documentation of the replacement crankset and/or installation.

Claim Form

NOTE: If you do not qualify for this settlement do NOT file a claim.

Remember: you are submitting your claim under penalty of perjury. You are also harming other eligible Class Members by submitting a fraudulent claim. If you’re unsure if you qualify, please read the FAQ section of the Settlement Administrator’s website to ensure you meet all standards (Top Class Actions is not a Settlement Administrator). If you don’t qualify for this settlement, check out our database of other open class action settlements you may be eligible for.

Claim Form Deadline

08/04/2026

Case Name

In re Shimano Crankset Litigation, Case No. 8:23-cv-02038-JVS-JDE, in the United States District Court for the Central District of California

Final Hearing

02/02/2026

Settlement Website

ShimanoCranksetSettlement.com

Claims Administrator

In re Shimano Crankset Litigation
Settlement Administrator
P.O. Box 4150
Portland, OR 97208-4150
888-873-3150

Class Counsel

Roland Tellis
BARON & BUDD P.C.

Jason L. Lichtman
LIEFF CABRASER HEIMANN & BERNSTEIN LLP

Stephen Larson
LARSON LLP

Defense Counsel

Gregory Stone
L. Ashley Aull
MUNGER, TOLLES & OLSON LLP