The lawsuit centers on certain Shimano Hollowtech II road cranksets made before July 2019—parts found on many performance bicycles from major brands—that allegedly can develop bonding separation and delamination. Because these crank arms are typically a bonded, hollow construction designed to be light and stiff, a failure isn’t just a nuisance: it can compromise drivetrain integrity and potentially cause a crash. In 2023, a recall process tied to U.S. safety oversight (including Consumer Product Safety Commission involvement) highlighted the issue and pushed riders toward inspection and replacement pathways through authorized dealers. Plaintiffs sued Shimano’s North American entities along with bike makers such as Specialized, Trek, and Giant, alleging the companies downplayed the defect risk and that the recall, warranty coverage, and marketing were inadequate for affected consumers. The proposed settlement—reported as likely under $120 million though not formally disclosed—offers reimbursement for reasonable out-of-pocket replacement and installation costs for eligible riders who replaced a covered crankset due to separation or delamination, plus an extended warranty (to July 29, 2027) and enhanced inspection procedures at authorized dealers. Key dates include an opt-out and objection deadline of December 29, 2025, a final approval hearing on February 2, 2026, and a claim deadline of August 4, 2026, with claims generally requiring documentation of the replacement costs and the delamination-related reason for replacement, while proof of original purchase may be handled via declaration if unavailable. More broadly, the case reflects a familiar pattern in consumer product-safety litigation: when a widespread component defect intersects with recall logistics, warranty limitations, and communications to customers, class actions often focus on whether the remedy was practical and timely—not just whether the product was defective. Similar suits have arisen in the cycling and outdoor-equipment industries when high-volume parts are distributed through multiple brands and sold both as standalone components and as original equipment on complete products, raising questions about who bears responsibility for inspections, replacements, and consumer notice under U.S. product-safety expectations and recall norms.