The possible bonding separation issue has prompted Shimano to put out a voluntary inspection and replacement recall notice for 760,000 Dura-Ace and Ultegra bonded 11-Speed road cranksets The possible ponding separation issue has prompted Shimano to put out a voluntary inspection and replacement recall notice. Read more as 760,000 Dura-Ace and Ultegra bonded 11-Speed road cranksets affected.