http://www.bugaboo.com/32What to do if the swivel wheels of my Bugaboo Bee stroller shimmy?There are several reasons that may cause the swivel wheels of the Bugaboo Bee to shimmy, including driving speed, road surface and the load on the wheel suspension. And although shimmying does not affect the safety of the stroller, we do understand that it might cause an unpleasant driving experience. Therefore, Bugaboo has created a very simple service set which you can order free of charge and place on your Bugaboo Bee swivel wheels to stop them from shimmying. To order, please contact Bugaboo Customer Service.