Shimano Bicycle Crankset Class Action Settlement

What is the Shimano product defect / recall settlement about?

The Shimano crankset class action settlement (In re Shimano Crankset Litigation, Case No. 8:23-cv-02038-JVS-JDE) resolves allegations that Shimano's Hollowtech II cranksets — specifically Ultegra FC-6800, FC-R8000, and Dura-Ace FC-9000, FC-R9100, and FC-R9100-P models manufactured before July 2019 with production codes KF through RF — were defective and prone to bonding separation and delamination, creating a crash hazard. Plaintiffs alleged that Shimano's September 2023 CPSC recall was inadequate to address the known defect. The settlement was finally approved on February 2, 2026. Defendants (Shimano North America, Specialized, Trek, and Giant) deny all allegations.

Rather than a common settlement fund, the settlement provides three forms of relief. All class members automatically receive an Extended Express Warranty covering bonding separation and delamination through July 29, 2027, and access to enhanced inspections at Shimano Recall Retailers at no cost. Class members who paid out of pocket for crankset replacement or installation before September 21, 2023 — after their original express warranty expired — can file a documented reimbursement claim. The claim deadline is August 4, 2026.

Who qualifies to file a claim?

• You purchased, received, or owned a Shimano Hollowtech II crankset manufactured before July 2019 in the United States.
• Affected models include: Ultegra FC-6800, Ultegra FC-R8000, Dura-Ace FC-9000, Dura-Ace FC-R9100, or Dura-Ace FC-R9100-P with production codes KF through RF (full production code list available at ShimanoCranksetSettlement.com and the CPSC recall page).
• For documented cost reimbursement: your crankset must have failed (bonding separation or delamination) before September 21, 2023, and after the original express warranty period had expired (2 years from original retail purchase for Ultegra models; 3 years for Dura-Ace models).
• For the automatic Extended Warranty and enhanced inspections: no claim is required — all class members who did not opt out by December 29, 2025 are automatically covered.

How to file a claim

1. 1Check your crankset model number and production code against the affected list: Ultegra FC-6800/FC-R8000 or Dura-Ace FC-9000/FC-R9100/FC-R9100-P with codes KF through RF.
2. 2If your crankset failed before September 21, 2023 and after your express warranty expired, gather documentation of your out-of-pocket costs: receipts, work orders, invoices, repair records, or credit card statements.
3. 3Submit your claim online at ShimanoCranksetSettlement.com/Home/SubmitClaim — or download, complete, and mail the paper claim form postmarked by August 4, 2026, to: In re Shimano Crankset Litigation Settlement Administrator, PO Box 4150, Portland, OR 97208-4150.
4. 4If you have not yet replaced the crankset, contact an authorized Shimano Recall Retailer to schedule a free enhanced inspection — no claim form is needed for the warranty benefit.
5. 5Save your claim confirmation or mailing receipt for your records. Questions? Call the settlement administrator at 1-888-873-3150.

Is the Shimano settlement legit?

Yes. The Shimano product defect / recall settlement is a court-supervised class action overseen by the U.S. District Court, Central District of California (8:23-cv-02038-JVS-JDE) and administered by an official settlement administrator. You file your claim directly with the administrator and keep 100% of any payment — Payout never takes a cut. The fastest way to avoid missing this and other settlements you qualify for is to let Payout match and file for you in minutes.