Wald's 10252 training wheels are designed to mount on most single speed bicycles with 16- to 20-inch wheels and are intended for use by riders weighing up to 100 pounds. These training wheels feature new frame adapters that improve installation. The new frame adapters enable this wheel set to be mounted on bicycles with .75 and 1.00-inch rear frame tubes. The training wheels can also be mounted onto bicycles with 1.25-inch rear frame tubes when the frame adapters are not used.