History of electric scooters
Razor and the birth of the children's electric-scooter class (2000–2024)
A standalone historical profile of Razor USA: how Carlton Calvin and JD Corporation launched Model A in 2000, added the Razor E100 in 2003, and over twenty years shaped the entire consumer children's class of electric scooters. The E-Series line (SLA, chain drive), Power Core (hub motor), Black Label, EcoSmart Metro as the 'adult' SLA successor, E Prime as the first Li-ion entry, Dirt Rocket electric motocross bikes, Hovertrax as the first UL 2272 product on the market, ASTM F2641 as a dedicated safety standard for recreational powered scooters, the CPSC recall history (2005 E200/E300, 2008 PowerWing and Dirt Quad, 2016 hoverboards, 2024 Icon), and why Razor still keeps SLA in its 2026 children's lineup.