Electric Balance Bike Parts for Ages 4–6

12" to 16" transition class. Covers Strider’s 14" kit, Stacyc’s 16" hub motor kit, and Revvi 16".
Sizing a Bike Through the Growth Spurt Years
This is the widest age band on the site because growth rate varies more here than at any other stage, check inseam and current bike wheel size rather than age alone before ordering parts. Browse Strider Hub, Stacyc Hub or Revvi Hub.