HARDLINE UNIVERSAL TRAINING WHEELS FOR STACYC ELECTRIC BIKESNow the youngest of children can ride on the most entry level Stacyc balance bike with the proven Universal Trainer by Hardline Products Your rider will learn throttle control and balance at the same time safely. Kid Tested Mother Approved! Fits Stacyc 12e or 16e models, the Universal Trainer training wheel system will allow for adjustability and adaptability. With our Universal Trainer you can adjust the wheel height and mounting position for your