Razor and the birth of the children's electric-scooter class (2000–2024)

Scootify 13 min read

In the article on the early chronology period (before 2010) we mentioned 2003 as the year the Razor E100 — the first mass-market consumer electric scooter — was released. In the article on types of electric scooters, the Razor E100 appears as the canonical example of the children’s class: a device tested under ASTM F2641. This section is a standalone profile of Razor USA itself and its product lines: how exactly one California company, over twenty years, shaped the entire consumer children’s class — where an electric scooter is perceived not as urban transportation but as a toy for kids aged 8+ priced at $100–250 at Walmart and Target.

Understanding this history matters for two reasons. First, the children’s class lives under a separate legal regime (ASTM F2641, not the Vehicle Code), a different risk profile (≤ 16 km/h for 8–12-year-olds, several dozen minutes of ride time, rider-weight limits) and its own engineering (SLA battery and chain drive as a deliberate choice, not technological backwardness). Second, it was Razor in the 2003–2010s that locked in the North American consumer perception of “electric scooter = a toy for children,” which the sharing industry (Bird, Lime) then had to break down in 2017–2018 — and which still influences the market positioning of every “adult” commuter device today.

Razor USA: company and origins (1999–2003)

Razor USA was founded in 2000 in Cerritos (California, USA) by Carlton Calvin and JD Corporation of Changhua (Taiwan). This union was a commercial-and-manufacturing hybrid: JD Corporation had the production capacity and the engineering team (Gino Tsai had designed a lightweight folding aluminium kick-scooter by then), while Calvin had the California port, retail relationships, and an understanding of the US consumer market. The first batches of the Razor A were distributed through The Sharper Image. (SGB Online — Ride to Success: Razor USA, Wikipedia — Razor USA)

Conceptually, the kick-scooter Razor launched in 2000 was an adaptation of Wim Ouboter’s 1999 Swiss Micro Scooter, described in the article on the early period and in the extended profile of Micro Mobility AG (founded 1996 in Küsnacht, 1990 prototype built from inline-skate wheels, Kickboard launched with K2 Sports at ISPO Munich 1998, market split in 2000: Razor takes North America, Micro keeps Europe). The first Micro models were sold through Smart Car in Europe; the Razor A, conceptually identical in production terms, was aimed at North American mass retail. In the summer of 2000 Razor was selling about one million scooters a month, in six months — over 5 million units, and the product was named “Toy of the Year” (Toy Industry Association). In 2024 the company reported >50 million cumulative scooter units sold across all types, of which >15 million were electric. (Levy Electric — Unfolding the History, Wikipedia — Razor USA)

This scale matters for understanding the rest: Razor is not a niche player but the dominant force in its segment. No other company in the children’s class comes close to its volume — and Razor’s choices (SLA instead of Li-ion, ASTM F2641 instead of UL 2272 on most models, the $100–250 price grid) effectively define the class itself.

Razor E100 (2003): the consumer electric-scooter pioneer

In 2003 Razor USA added an electric variant to its lineup. The Razor E100 is not the first electric standing scooter in history (that title belongs to the Go-Ped ESR750 of 2001 for adults, and even earlier — to the Eveready Autoped of 1918, both described in the article on the early period). But it was precisely the E100 that became the first mass-market consumer electric scooter — in the children’s segment, at a price accessible to a middle-class North American family. The official specification from razor.com:

  • Motor: 100 W, kick-to-start, high-torque, chain drive.
  • Battery: 24 V (two 12 V SLA blocks), rechargeable, with charger included.
  • Top speed: up to 10 mph (16 km/h).
  • Continuous ride time: up to 40 minutes.
  • Recommended: 8+ years, maximum rider weight 120 lb (~54 kg).
  • Wheels: front 8″ pneumatic, rear — urethane (cast polymer).
  • Brake: front hand caliper.
  • Mass: 26 lb (~11.8 kg).
  • Certification: electrical system UL 2272 via ACT Lab LLC. (Razor — E100)

Structurally this is a minimalist compromise: chain drive (a technology familiar to the child audience from bicycles), SLA battery (lower cost, tolerant of a primitive charge cycle), kick-to-start ergonomics (the motor only engages once the child is already rolling on foot — an additional safeguard against sudden start-off). The reasoning behind this engineering philosophy is explored further in the article on motors and in the article on batteries: SLA costs $30–60 per block pair (~$80–150 to replace), the Li-ion equivalent of comparable capacity is $200–400, and for the $100–199 children’s price point that difference is catastrophic.

E-Series: the SLA + chain-drive line (2003–2026)

Twenty years after the E100 launched, the E-Series family has settled into several variations of the same technological core — a 24-volt SLA plus chain drive — graded by age, rider weight, and speed. Engineering-wise it is the same “children’s” pattern throughout, but addressed from 8-year-olds up to teenagers:

  • E100/E125 (8+): ~100 W chain, 10 mph, 120 lb max, ~40 min ride time. The E125 is effectively an E100 with cosmetic changes (different handlebar design, different colour) and an identical owner’s manual. (Wild Child Sports — E100 vs E125)
  • E200/E200S (13+): 200 W chain, 12 mph, 154 lb max. The S-variant comes with a seat as an accessory.
  • E300/E300S (13+): 250 W chain, 15 mph, 220 lb max — the highest payload in the class, with 9″ pneumatic tyres at both ends. This is the most powerful “children’s” Razor, often bought by 14–17-year-olds and even adults for the price alone. (Just My Scooter — E100 vs E200 vs E300)
  • RX200 (13+): 200 W chain, 12 mph, 60 PSI off-road tyres, rear disc brake, 154 lb max — an off-road “children’s” variant with Jeep branding. (Razor — RX200 on Walmart)

The key engineering point across the E-Series: for twenty years, the configuration has not changed. The same SLA, the same chain drive, the same 12-hour charge cycle. This is a deliberate choice, not technological lag: SLA tolerates overcharging, deep discharge, low temperatures, and a careless charge routine — exactly what should be expected from an 8-year-old user. Li-ion under the same conditions would, within 6 months, go into deep self-discharge or lithium plating, as described in the article on electronic systems and in the article on winter operation.

Power Core: the hub motor as modernisation (2017+)

In 2017 Razor introduced the Power Core line — a variant of the E-Series where the chain drive is replaced by a BLDC hub motor in the rear wheel. Conceptually it is the same device — same SLA battery, same price point — but without a chain that needs tensioning, alignment, and lubrication. The Power Core E90 is the cheapest in the line:

  • Motor: 90 W, kick-to-start, hub, brushless, in the rear wheel.
  • Battery: 12 V SLA (one, not two — less than the E100), rechargeable.
  • Speed: 10 mph (16 km/h).
  • Ride time: up to 40 min.
  • Mass: 18.76 lb (~8.5 kg) — 7 kg lighter than the E100 thanks to the smaller battery and the absence of a chain transmission.
  • Certification: UL 2272 via Guangdong UTL Co. (Razor — E90 Black Label)

There is also the Power Core E100 — the same concept but with a 24 V battery and extended ride time up to 60–80 minutes. The hub motor is more electrically efficient (less transmission friction), and one 12 V SLA cell weighs less than two chain-driven 12 V cells. (Sports Gear Hunt — Power Core E90 vs E100)

Technically, Power Core is the export of an engineering concept that has dominated adult electric scooters since 2016 (Xiaomi M365, Segway-Ninebot ES2 — both on hub motors) into the children’s class. The “geared hub vs direct-drive hub vs chain drive” distinction is expanded in the article on motors.

Black Label: a cosmetic premium tier

Black Label is not a separate technical class but a marketing grade: black frame instead of coloured, black wheels, dark-grey grips, a wider deck with a 3D polymer anti-slip surface. Technically the Black Label E90 is identical to the regular Power Core E90 (90 W hub, 12 V SLA, 10 mph, 40 min ride time, ~9 kg). The line exists because a 13–16-year-old buyer wants visual differentiation from the “children’s” 8-year-old brand, while Razor deliberately keeps the base E-Series in bright colours for mass retail.

EcoSmart Metro: the “adult” Razor (2017+)

In 2017 Razor stepped outside the children’s class with the EcoSmart line aimed at adults (16+). The EcoSmart Metro HD is the most commercially successful “adult” Razor of the 2020s:

  • Motor: 350 W, variable-speed, hub, brushless, rear wheel.
  • Battery: 36 V SLA, rechargeable.
  • Speed: up to 15.5 mph (~25 km/h).
  • Ride time: up to 60 min of continuous riding.
  • Range: up to 12 miles (~19 km) on a full charge.
  • Age: 16+, 220 lb max (~100 kg).
  • Tyres: 16″ pneumatic (both).
  • Mass: 72.89 lb (~33 kg).
  • Certification: UL 2272 via ACT Lab.
  • Design feature: integrated padded seat, fold-out cargo basket.
  • Brake: rear hand brake. (Razor — EcoSmart Metro HD)

The EcoSmart Metro HD is a factory-seated kick-scooter, a distinct class explored in detail in the article on seated electric scooters. Engineering-wise it is an intriguing hybrid: an “adult” 350 W hub motor with 36 V and 16″ tyres, but an SLA battery (not Li-ion) and a ~$700 price tag, far below comparable Li-ion competition (Xiaomi Mi 4, Segway-Ninebot Max G30 — both ~$700–900 with Li-ion and an associated feature set). Razor deliberately keeps SLA in the EcoSmart, on the same pricing principle as in the E-Series: a tolerant battery for a non-expert user, a simpler charge cycle, lower TCO.

E Prime: Razor’s first Li-ion entry (2018+)

Only in 2018 did Razor launch the E Prime — the first Li-ion electric-scooter line in its catalogue. This is a separate series, a separate class, a separate price range ($350–600). The baseline specification of the E Prime III:

  • Motor: 250 W hub, rear wheel.
  • Battery: 36 V Li-ion, rechargeable.
  • Speed: up to 18 mph (29 km/h).
  • Range: up to 15 miles (~24 km).
  • Rider weight: up to 220 lb (~100 kg).
  • Tyres: 8″ pneumatic front.
  • Mass: ~31 lb (~14 kg) — half as heavy as the SLA-based EcoSmart.
  • Certification: UL 2272. (Walmart — Razor E Prime III)

The E Prime Air is the variant with full pneumatic 8″ tyres on both ends; the E Prime III is the current (2024) flagship with improved ergonomics. The battery is certified to UL 2271, the device to UL 2272 (two different standards: UL 2271 is the safety standard for Li-ion packs themselves used in PMDs, UL 2272 is the safety standard for the electrical system within the device; both are mandatory in NYC from 16 September 2023, expanded on in the article on electronic systems). (Amazon — Razor E Prime Air)

E Prime is Razor’s honest bid for the adult commuter segment: 29 km/h, 24 km of range, Li-ion, a folding frame. But it is a separate, relatively new line — as of 2026 Li-ion is used in the company’s catalogue only in the E Prime (commuter), in a few premium Hovertrax models (hoverboards), and in a narrow Sport Mod special series. The bulk of Razor’s products — the children’s E-Series, Power Core, EcoSmart Metro, and the entire Dirt Rocket line — remain on SLA in 2026.

Dirt Rocket: electric motocross bikes (2005+)

A separate Razor line is Dirt Rocket, electric motocross bikes in the children’s and youth mega-category. Formally this is no longer a “scooter” (motorcycle frame geometry, a seat, motorcycle-style handlebars), but in the US many states legally classify them as off-highway recreational vehicle, and ASTM F2641 covers them under “pocket bikes” — a pocket bike is defined in the standard as a “motorized two-wheel vehicle designed for a single occupant in the seated position typically designed to look like a motorcycle but scaled down.” (ASTM F2641-23)

The baseline models of the line:

  • MX350 (8+): 24 V SLA, chain drive, 14 mph (22 km/h) in high mode, 30–60 min ride time, 140 lb max, 12″ pneumatic tyres. This is the entry-level “children’s” electric dirt bike. (Razor — Dirt Rocket MX350)
  • MX500/MX650 (14+): more powerful versions with a 36 V battery, 15–17 mph, 175 lb max. This is the youth end of the line.
  • SX350 McGrath (13+): 250 W chain, 24 V SLA, 14 mph, 60 min low / 30 min high mode, design signed by seven-time supercross champion Jeremy McGrath. This is a niche premium variant. (Razor — SX350 McGrath)

Engineering-wise it is again the same E-Series philosophy: 24-volt SLA, chain drive, the children’s price band ($200–500). The expanded motorcycle form factor did not change the battery strategy.

Hovertrax: the first UL 2272 product on the market (2016)

In 2015–2016 the North American market faced a crisis of “self-balancing scooters” (hoverboards) — several dozen cases of Li-ion battery ignition, mostly in cheap imported devices without certification. The major retailer Amazon temporarily pulled all hoverboards from sale, airports and airlines banned carrying them, and CPSC issued a warning.

UL Standards responded by quickly issuing a new safety standard — UL 2272 — specifically for self-balancing scooters and their Li-ion batteries. The standard came into effect in May 2016, and the Razor Hovertrax 2.0 was the first product on the market to receive UL 2272 certification (23 May 2016, via ACT Lab). In August 2016 the company announced a redesign of the Hovertrax 2.0 and the Hovertrax DLX 2.0, both released that autumn. (PR Newswire — Razor Hovertrax 2.0 launch, PR Newswire — Razor receives UL 2272 cert)

This is historically important for two reasons. First, UL 2272 was later exported from hoverboards into electric scooters proper — and in 2023 became a legal requirement in New York City (Local Law 39 of 2023), as described in the article on electronic systems. Second, although Razor turned out to be the first in UL 2272 compliance for hoverboards, the company did not extrapolate Li-ion to its core children’s E-Series — the choice of SLA there remained a principled, not a technological, one.

ASTM F2641: the children’s-class safety standard

ASTM F2641 “Standard Consumer Safety Specification for Recreational Powered Scooters and Pocket Bikes” is a separate safety standard for recreational powered scooters and pocket bikes, aimed at children 8–12 years old and teenagers 13+. The standard was adopted by ASTM International (a non-profit standards-development organisation based in Philadelphia) and is a distinct legal category from the commercial transportation regulations of the US Department of Transportation.

Baseline requirements (F2641-23 — the current 2023 revision):

  • Top speed: 16 km/h (10 mph) for 8–12-year-olds; 32 km/h (20 mph) for teenagers 13+.
  • Working definition: a recreational powered scooter is a battery-powered motorised recreational vehicle with two or more wheels, a low platform, a vertical element to grasp, and a method of control.
  • Testing: acceleration, braking, ride performance, stability on uneven surfaces, impact resistance, electrical safety (overheat protection, insulation tests), labelling and consumer warnings.
  • Out of scope: products labelled Adult Use Only with clear markings, commercial scooters, and devices under DOT regulation. (ASTM F2641-23 official, ANSI Blog — F2641-23 explainer, ACT Lab — F2264 and F2641 overview)

F2641 is a voluntary standard in the legal sense (not a CPSC regulation), but the CPSC and major retailers (Walmart, Target, Amazon) effectively require compliance as a condition of catalogue placement. Razor, as the segment’s dominant player, in practice defines what “compliance with F2641” means — and all E-Series and Power Core models are tested under this standard. UL 2272 is a separate, more “adult” standard that Razor applies to the Hovertrax (where it is mandatory because of Li-ion risk) and to most modern electric-scooter models (at the request of retailers and under regulatory pressure in particular jurisdictions).

CPSC recall history (2005–2024)

A full portrait of Razor would be incomplete without an honest enumeration of its historical recalls. This is not a quality assessment — it is part of the safety history of the children’s class:

  • 2005, E200/E200S/E300/E300S: the first documented CPSC recall by Razor. Details are on the official CPSC page, with limited access; according to secondary sources, the recall concerned electrical-system issues on the early E200/E300 models released in 2003–2005. (CPSC — 2005 recall reference)
  • 2008, PowerWing (3-wheeled scooter): ~103,000 units recalled because of sharp edges on the foot platform that could cut the Achilles tendon; 10 injury cases were documented, of which 4 required surgery and 3 required sutures. This is the most heavily documented Razor recall in terms of health consequences. (CPSC — PowerWing recall 2008)
  • 2008, Dirt Quad (4-wheeled ATV): ~30,000 units recalled because of a defective throttle module that could cause sudden acceleration without rider input. (CPSC — Dirt Quad recall 2008)
  • 2016, Hovertrax (originals): prior to the UL 2272 certification of the 2.0 version, the original Hovertrax was recalled over the risk of Li-ion battery overheating with smoke, fire, and explosion. This is not unique to Razor — it was an industry-wide hoverboard crisis of 2015–2016. (CPSC — Hovertrax recall 2016)
  • 2024, Icon Electric Scooter: the most recent recall — the Razor Icon (a 2022 model, ~$600 per unit), where the downtube could separate from the floorboard during riding (fall hazard). 34 reports of full or partial separation were filed, with two documented injuries (bruises). The recall was announced on 25 July 2024; the remedy was a $300 cheque or a full refund (including taxes and shipping) on proof of receipt from 11 March 2023 onward. (CPSC — Razor Icon recall 2024, Razor — Icon recall page)

To be fair: across 24 years of mass production and 50+ million units sold, the documented count of serious incidents at Razor is low compared with other consumer-product categories. No recall touched the core E-Series (E100/E200/E300) in terms of engineering design — recalls hit separate product lines (Hovertrax — Li-ion risk; PowerWing — sharp edges; Icon — a structural floorboard defect). This further justifies Razor’s conservative battery strategy: SLA + chain drive is the path of least recall risk.

Why Razor still keeps SLA in 2026

Let us state the strategic point explicitly. By 2026 the electric-scooter industry is fully on Li-ion: Xiaomi, Segway-Ninebot, Apollo, NAMI, Dualtron, Inokim, Mantis, Phantom, Wolf — all adult devices on Li-ion, typically 36–84 V, with UL 2271 battery certification. Razor strategically keeps SLA in the mass-market children’s E-Series and Power Core lines, despite the economic and weight disadvantage:

  1. Tolerance of the user. A children’s model spends 9 months a year in a garage at variable temperatures, is charged from a standard US outlet without BMS overcharge protection, and is sometimes left plugged into a charger for a week. SLA survives this; Li-ion under the same conditions would go into lithium plating, as described in the article on electronic systems. This is not a theoretical hazard — it is the real behaviour of parents and children.

  2. Price and TCO. An SLA replacement costs $30–80 for a pair of 12 V 5 Ah blocks, and can be bought at any Amazon or Walmart in one day. A Li-ion replacement at the children’s price point would realistically cost $100–200 and require dedicated logistics (Li-ion cannot be shipped by ground mail without certified UN3480/UN3481 packaging). For a $150 scooter the maths does not work. (Tech Battery Solutions — Razor battery life)

  3. Recall risk. SLA practically does not catch fire — there is no thermal-runaway mechanism as in Li-ion. This is not a theoretical distinction: the 2015–2016 hoverboard crisis was about Li-ion, NYC LL39 2023 is about Li-ion, and every CPSC battery-line recall against Razor (2016) was about Li-ion. SLA is an engineering decision to reduce recall risk in a mass-market 8+ environment.

  4. The children’s speed niche does not need Li-ion. Li-ion’s specific energy (~150–250 Wh/kg vs ~30–40 Wh/kg for SLA) is an advantage specifically for adult scenarios (30–60 km range, ~12–20 kg mass, 25–40 km/h speed). For a children’s 16 km/h / 40 min ride time / 8 kg device, the SLA weight “penalty” sits within limits a 9-year-old rider does not notice.

This strategic choice is the most expressive signal that the children’s class is a separate engineering and market regime. It is not “the adult urban commuter, only smaller.” It is a different problem with a different optimum.

The “electric scooter = toy” perception: a cultural legacy

Twenty years of Razor’s dominance in North American retail locked in a stable consumer perception in the US: the electric scooter is a toy for 8–13-year-olds, from Walmart. This perception had two side effects:

  1. The sharing industry of 2017–2018 had to break this association. Bird, Lime, and Spin entered the market with 350 W Xiaomi M365 devices that were literally ten times more powerful than the Razor E100 and four times faster. The first reactions from US regulators and the media were “are these toys placed on the sidewalk?”, partly inherited from the Razor perception. This is unpacked in detail in the article on 2010–2020.

  2. The premium consumer segment (Apollo City, NAMI Burn-E, Dualtron) until 2025 held to a separate brand and distribution channel so as not to mix with the Walmart-Razor segment. A buyer of an Apollo Pro finds the device on a specialist site (Apollo Scooters, Voro Motors, Fluid Free Ride), not in the toy aisle of a hypermarket. This is still a rough split in the market that does not exist in Europe or Asia, where the children’s and adult segments were separate brands from the start (Razor in Europe is only a niche player).

This is not a critique of Razor — it is an honest historical assessment. Razor did exactly what was commercially right for its market: it created and maintained the dominant children’s class. The shadow this dominance casts over the adult segment is a side effect, not a defect of strategy.

Summary

Razor USA is not the maker of “the best electric scooter,” it is the maker of the dominant children’s electric scooter. Over 24 years of mass production the company has created a separate class with its own engineering (SLA + chain or hub drive; ASTM F2641 as a dedicated standard; a $100–250 price grid for the baseline models; 40 min ride time on a 24-volt SLA), its own legal regime (a recreational toy under ASTM F2641, not a PEV commuter under UL 2272), and its own regulatory consequences (UL 2272 was piloted on the Hovertrax in 2016 before becoming a legal requirement in NYC in 2023).

Twenty-three years after the Razor E100 (2003) the company stays on the same 24-volt SLA in its core mass-market line — not from technological lag, but from a deliberate choice in favour of recall resilience, user-error tolerance, and price accessibility. The E Prime line (Li-ion, since 2018) and the EcoSmart Metro HD (an SLA “adult”, since 2017) show that the company is consciously diversifying the lineup — but the children’s class itself remains engineering-conservative.

For a buyer today, Razor is the right choice for its age and scenario. An 8-year-old child on a $150 Razor E100 is the children’s class. A 14-year-old teenager on a $250 Razor E300 is the children’s class with elevated power. A 35-year-old parent who wants to ride alongside a child is in another class (Xiaomi Mi 4, Apollo City Pro, Segway-Ninebot MAX G30), and choosing Razor for an adult scenario is a category mistake, not a quality one. The guide on choosing a scooter for your scenario expands on how exactly to keep these classes apart in practice.