I saw Shimano recalled 680,000 cranks today. The recall lists any cranks manufactured prior to July 2019, including the FC-R8000. I have an FC-R8000 from 2021, manufacturing code “TA” (so after July 2019, since these codes progress alphabetically).

This recall involves Shimano Ultegra FC-6800, Dura-Ace FC-9000, Ultegra FC-R8000, Dura-Ace FC-R9100 and FC-R9100P, 11-Speed Bonded Hollowtech Road Cranksets, manufactured prior to July 2019 sold individually and on bicycles sold by other manufacturers such as Trek and Specialized. The recalled models have printed ‘Ultegra’ or Dura Ace’ logos on the arm. The affected models are pre-July 2019 production and have the following two letter production code on backside of the crank arm where the pedals are attached: KF, KG, KH, KI, KJ, KK, KL, LA, LB, LC, LD, LE, LF, LG, LH, LI, LJ, LK, LL, MA, MB, MC, MD, ME, MF, MG, MH, MI, MJ, MK, ML, NA, NB, NC, ND, NE, NF, NG, NH, NI, NJ, NK, NL, OA, OB, OC, OD, OE, OF, OG, OH, OI, OJ, OK, OL, PA, PB, PC, PD, PE, PF, PG, PH, PI, PJ, PK, PL, QA, QB, QC, QD, QE, QF, QG, QH, QI, QJ, QK, QL, RA, RB, RC, RD, RE, and RF.

United States Consumer Product Safety Commission recall statement

The USCPSC site list says consumers with an affected crankset “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.”

Source and Video:  https://www.bikeradar.com/news/shimano-crankset-recall/?utm_content=BRR&utm_campaign=%20Newsletter%2022%2F9%2F23_3071964_BikeRadar_Newsletters_9968939&utm_medium=Email&utm_source=Adestra