Everything To Know About The Shimano Defective Crankset Settlement Before You Submit A Claim

The Shimano Defective Crankset Settlement has received final court approval, and if you owned one of the affected 11-speed Hollowtech II road cranksets manufactured before July 2019, you may be eligible for out-of-pocket reimbursement, an extended warranty through July 2027, or both. The deadline to submit a documented reimbursement claim is August 4, 2026, so there is still time to act, but you need to understand the specific eligibility rules before filing.

For example, if you replaced your crankset after the recall was announced on September 21, 2023, you are not eligible for reimbursement through this settlement because Shimano’s free recall program already covers those replacements. We will also cover the production code system used to identify affected units, common pitfalls in the claims process, and what the extended warranty means for riders who have not yet experienced a failure.

What Is the Shimano Crankset Settlement and Who Qualifies?
What Benefits Does the Settlement Provide and What Are the Limits?
How to Identify Your Affected Shimano Crankset
Filing Your Claim — Online, by Mail, and What Documentation You Need
Common Mistakes That Could Get Your Claim Denied
What the Extended Warranty Means for Current Owners
What This Settlement Signals for Cycling Product Liability
Frequently Asked Questions

What Is the Shimano Crankset Settlement and Who Qualifies?

In September 2023, shimano and the U.S. Consumer Product Safety Commission issued a voluntary recall covering approximately 680,000 cranksets in the United States and 80,000 in Canada. The problem was serious: bonded crank arms on certain 11-speed Hollowtech II models could separate and delaminate mid-ride, creating an obvious crash hazard. Shimano had received 4,519 reports of cranksets separating and six reported injuries that included bone fractures, joint displacement, and lacerations. Less than two weeks after the recall, three crankset owners filed suit against Shimano, Trek, Specialized, and Giant. Eleven more plaintiffs joined later, and the case was consolidated as In re Shimano Crankset Litigation. The settlement, reached in July 2025, received final approval from Judge James V. Selna at the Ronald Reagan Federal Building and U.S.

Courthouse in Santa Ana, California, on February 2, 2026. Eligibility extends to anyone in the United States who purchased, received, was given, or owned one of the affected cranksets or a bicycle equipped with one. The affected models are the Ultegra FC-6800, Ultegra FC-R8000, Dura-Ace FC-9000, Dura-Ace FC-R9100, and Dura-Ace FC-R9100-P, but only units manufactured before July 2019. If you bought a used bike with one of these cranksets already installed, you still qualify. To determine whether your specific crankset falls within the recall window, check the two-letter production code stamped on the backside of the crank arm near the pedal attachment. Codes ranging from KF through RF indicate manufacture before July 2019. If your production code falls outside that range, your crankset was made after the cutoff and is not part of this settlement. This detail trips up a lot of people, so it is worth pulling off the pedal and checking before you spend time gathering documentation.

What Is the Shimano Crankset Settlement and Who Qualifies?

What Benefits Does the Settlement Provide and What Are the Limits?

The settlement includes three main components. First, Shimano will extend its Express Warranty coverage for bonding separation and delamination on all affected cranksets until July 29, 2027. This extension is automatic and requires no claim form. If your crankset fails due to delamination before that date, Shimano is obligated to cover it under warranty regardless of when you originally purchased it. Second, class members who previously replaced a defective crankset out of pocket can file for reimbursement of reasonable costs, including the price of the replacement crankset, professional installation fees, and related component costs. Third, Shimano will distribute magnifying devices with enhanced lighting to every recall retailer, along with inspection manuals, to improve the quality of crankset inspections going forward. However, there are two important restrictions on reimbursement claims that eliminate a significant number of potential filers.

You cannot claim reimbursement if you replaced your crankset on or after September 21, 2023, the date the recall was publicly announced. The logic is that Shimano’s free recall replacement program was available from that point forward, so the settlement does not cover costs that the recall itself should have addressed. If you paid a shop to swap your crankset in October 2023 instead of going through the recall process, that was your choice, and the settlement will not reimburse you for it. The second restriction involves the original Express Warranty. If your warranty was still active at the time you replaced the crankset, you are also ineligible for reimbursement. Ultegra cranksets carry a two-year warranty from the date of purchase, while Dura-Ace models carry a three-year warranty. So if you bought an Ultegra FC-R8000 in March 2018 and replaced it in June 2019, you were within the warranty window, and reimbursement through this settlement would not apply. This effectively limits reimbursement to people who replaced their cranksets after the warranty expired but before the recall was announced, a window that varies depending on when you bought the component and which model you owned.

How to Identify Your Affected Shimano Crankset

Identifying whether your crankset is part of the recall is not as straightforward as checking a serial number on a sticker. The production code is a two-letter stamp located on the backside of the crank arm, near where the pedal threads in. On many bikes, you will need to remove the pedal or at least get a clear view of the inner face of the arm to find it. The relevant codes run from KF through RF, corresponding to manufacturing dates before July 2019. A rider with a 2017 Specialized Tarmac equipped with an Ultegra FC-6800, for instance, would almost certainly fall within the affected range, but confirming the code is still necessary for filing a valid claim. One common source of confusion is that the same crankset model continued to be manufactured after July 2019.

An Ultegra FC-R8000 bought new in early 2020 might have been manufactured after the cutoff and would not be subject to the recall at all. This is why the production code matters more than the purchase date or the model number alone. If you purchased a bike secondhand and have no idea when the crankset was made, the production code is your only reliable indicator. Shimano’s official recall page at bike.shimano.com includes a visual guide showing exactly where to find the stamp and how to read it. If the stamp is worn or difficult to read, a local bike shop with the Shimano-provided magnifying inspection tool should be able to help. Do not assume your crankset is or is not affected based solely on the model name or the year you bought the bike.

How to Identify Your Affected Shimano Crankset

Filing Your Claim — Online, by Mail, and What Documentation You Need

Claims can be submitted online at ShimanoCranksetSettlement.com or by mail, with mailed claims needing to be postmarked by August 4, 2026. The online route is faster and allows you to upload digital copies of your supporting documents, while the mail option requires physical copies. Either way, the documentation requirements are the same: purchase receipts, credit card statements, bike shop service records, photos of serial numbers and production codes, or warranty registration records. The more specific your documentation, the smoother the review process will be. If you do not have receipts — which is common given that some of these cranksets were purchased nearly a decade ago — you are not automatically disqualified. The settlement allows you to submit a declaration under penalty of perjury in lieu of traditional documentation.

This is a sworn statement attesting to your purchase and replacement, and it carries legal weight, so accuracy matters. A declaration works best when paired with whatever partial evidence you can gather: an old email confirmation, a photo of the bike with a date stamp, or a record from your local bike shop’s service database. Shops that use point-of-sale systems like Lightspeed or Ascend often retain service records going back years, so it is worth asking even if you have lost your own copies. For questions about the claims process, the settlement administratorsettlement administrator[contact via the official settlement website]. Keep in mind that the administrator handles procedural questions about filing, not legal advice about whether your specific situation qualifies. If you are unsure whether the warranty exclusion or the post-recall date exclusion applies to your replacement, the details in the settlement notice on the official website spell out the rules clearly.

Common Mistakes That Could Get Your Claim Denied

The most frequent error is filing a reimbursement claim for a crankset that was replaced after September 21, 2023. People understandably feel that if they paid out of pocket for a replacement, they should be reimbursed, but the settlement draws a hard line at the recall announcement date. If your replacement receipt is dated September 22, 2023, or later, the claim will be denied regardless of the circumstances. The recall program was the intended remedy from that date forward. Another pitfall is submitting a claim without verifying the production code. Filing based solely on the crankset model name without confirming the manufacturing date can result in a rejected claim and wasted effort.

Similarly, some claimants confuse the crankset model with other Shimano components. The recall covers only the five specific models listed — FC-6800, FC-R8000, FC-9000, FC-R9100, and FC-R9100-P. Other Shimano cranksets, including 105-level and GRX models, are not part of this settlement even if they use a similar Hollowtech II design. A subtler issue involves the warranty timeline. If you bought a Dura-Ace crankset in January 2017 and replaced it in December 2019, you were within the three-year warranty period. Even though you may have paid out of pocket because you did not pursue a warranty claim at the time, the settlement considers the warranty to have been available to you. This is a frustrating technicality for riders who were unaware of their warranty rights, but it is how the eligibility rules are written.

Common Mistakes That Could Get Your Claim Denied

What the Extended Warranty Means for Current Owners

If you still have an affected crankset on your bike and it has not failed yet, the most relevant benefit is the extended warranty covering bonding separation and delamination through July 29, 2027. This means that if your crank arm delaminates or shows signs of separation before that date, Shimano is obligated to address it at no cost to you. You do not need to file any paperwork to activate this coverage — it applies automatically to all affected units.

That said, the extended warranty is not a substitute for the recall inspection. Shimano and the CPSC still recommend having your crankset inspected by an authorized retailer, especially now that shops have been equipped with enhanced magnifying and lighting tools specifically designed to detect early signs of delamination. A crankset can begin to delaminate internally before visible signs appear on the surface, and riding on a compromised crank arm is genuinely dangerous. If an inspection reveals a problem, the recall program will replace the crankset at no charge, independent of the settlement’s warranty extension.

What This Settlement Signals for Cycling Product Liability

The Shimano crankset case is one of the larger cycling-specific class actions in recent years, both in the number of affected units — 760,000 across North America — and in the involvement of major bike brands as co-defendants alongside the component manufacturer. Trek, Specialized, and Giant were all named in the original suit, reflecting a broader legal theory that brands selling complete bikes bear some responsibility for the components they spec. While the settlement resolved claims against all defendants, the precedent of naming assemblers alongside parts makers is something the industry is watching closely. Attorney fees in this case were paid by the defendants and are separate from the benefits available to class members, meaning the reimbursement pool is not reduced by legal costs.

Class counsel included Roland Tellis of Baron & Budd, P.C., Jason L. Lichtman of Lieff Cabraser Heimann & Bernstein LLP, and Stephen Larson of Larson LLP. The 14 named plaintiffs each received a $500 service award. For the cycling public, the practical takeaway is straightforward: check your crankset, file before August 4, 2026, and do not leave money on the table if you already paid to fix this problem yourself.

Frequently Asked Questions

How do I know if my Shimano crankset is part of the recall?

Check for a two-letter production code on the backside of the crank arm near the pedal attachment. Codes from KF through RF indicate manufacture before July 2019. Only the Ultegra FC-6800, Ultegra FC-R8000, Dura-Ace FC-9000, Dura-Ace FC-R9100, and Dura-Ace FC-R9100-P models are affected.

I replaced my crankset in 2024 — can I get reimbursed?

No. Reimbursement is only available for replacements made before September 21, 2023, when the recall was announced. Replacements after that date are covered by Shimano’s free recall program, not the settlement.

What if I do not have a receipt for the original purchase or replacement?

You may submit a declaration under penalty of perjury in place of traditional receipts. Supporting evidence like credit card statements, shop service records, or photos can strengthen your claim.

Do I need to file a claim to get the extended warranty?

No. The warranty extension through July 29, 2027, covering bonding separation and delamination applies automatically to all affected cranksets. No claim form is required.

I bought my bike used — am I still eligible?

Yes. The settlement covers anyone in the United States who purchased, received, was given, or owned an affected crankset or a bicycle equipped with one, regardless of whether you were the original buyer.

What is the deadline to file a reimbursement claim?

August 4, 2026. Claims can be submitted online at ShimanoCranksetSettlement.com or by mail, postmarked by that date.