Shimano is a brand that is very committed to producing components for the cycling industry of the highest quality, durability and reliability. Therefore, with this mentality focused on quality and safety, the manufacturer announces a review and replacement program for Hollowtech II road cranks manufactured between June 1, 2012 and June 30, 2019 due to a possible problem with the connecting rod joint.
Hollowtech II cranks from Dura-Ace and Ultegra groupsets
In order to provide a solution, Shimano has launched a program to review and inspect the aforementioned cranks manufactured before July 2019, through its network of authorized sales points, and to replace cranks that do not pass this process. in the inspection.
As Shimano explains, not all Hollowtech II 11-speed cranks need to be serviced. Only those manufactured between June 1, 2012 and June 30, 2019 will need to be serviced, and it is expected that a very small percentage of the connecting rods serviced will need to be replaced.
The products involved in this review and replacement program are the following crank models: Ultegra FC-6800 and FC-R8000 and Dura-Ace FC-9000, FC-R9100 and FC-R9100-P. The model numbers are stamped on the inside of the crank arm near the bottom.
On the other hand, the models involved are from previous productions until July 2019 and have the following two-letter production codes: KF, KG, KH, KI, KJ, KK, KL, LA, LB, LC , LD, LE, LF , LG, LH, LI, LJ, LK, LL, MA, MB, MC, MD, AKO, 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.
Users who believe they have a product that meets these parameters should contact an authorized Shimano retailer to arrange a free inspection of their crankset.
Inspections will begin to be carried out from October 1 and, if the connecting rods do not pass the review process, they will be replaced free of charge with a special version, which may have a different aesthetic , but with the same level. in motion.