VoltRipper

Hiboy

DK1

Lithium (not SLA) — light 38 lb and a ~4.5 hr charge vs. lead-acid toys

Specs last verified

Key specs

Top speed
15.5 mph claimed
Peak power
300 W
Battery (Wh)
187 Wh
Claimed range
13.7 mi claimed; 9 mi real-world estimate
Weight
38 lb
Seat height
23.6 in
Street price
Check current price at Amazon

81

VR Score

Measured to 100

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Hiboy DK1 verified product photo
Price
Check current price at Amazon
Category
Kids
Skill level
Beginner
Peak power
300 W
Battery
187 Wh
Real range
9 mi
Top speed
15.5 mph
Weight
38 lb
Seat height
23.6 in
Suspension
Full
Brakes
Mechanical Disc
Street legal
No

What works

  • Lithium (not SLA) — light 38 lb and a ~4.5 hr charge vs. lead-acid toys
  • Three kid-safe speed modes (5 / 7.5 / 15.5 mph) grow with the child
  • Low 23.6" seat suits riders from age 3 up to ~10

Trade-offs

  • Small 187 Wh pack — ~9 mi of real range
  • 15.5 mph ceiling is quickly outgrown
  • Entry-grade components

VoltRipper Score breakdown

Power16/22
Range9/20
Chassis15/18
Value15/15
Support9/12
Ergonomics5/8
Versatility4/5
Class-relative subtotal73/100
Calibrated total7381/100

Claim vs. real-world check

Battery capacity

Rated: 36V 5.2Ah

Observed: 187 Wh catalog value matches Hiboy's official 36V/5.2Ah DK1 spec.

Some marketplace snippets cite 36V/4Ah, but VoltRipper follows the current official Hiboy DK1 product page for scoring.

Source: Hiboy — DK1

The verdict

The Hiboy DK1 (VoltRipper Score 81, ~$359) is the gentlest real electric dirt bike we track, and at 38 lb one of the lightest — and the right first bike for the littlest riders. Its whole design brief is approachability: three speed modes (5, 7.5, and 15.5 mph) let you start a three-year-old at a walking pace and open it up only as confidence grows, and at roughly 38 lb it's light enough for a small child to manage and a parent to lift one-handed when it tips over — which it will.

Its Score of 81 is strong for its class, because our Score judges it as a first bike — and a 300W, 15.5 mph gentle starter is exactly what that job wants. For the 3-to-8 first-bike slot, low power, low weight, and a gentle low-speed mode are the right specs, and the DK1 pairs them with real hardware most bikes at this price skip.

Who it's for — and who should skip it

Buy it if you have a young or first-time rider (roughly ages 3–8 by size) and want a gentle, speed-limitable, quick-charging first bike that's light enough to be genuinely manageable. Its 5 mph low mode is the lowest floor on our board, which is what makes it usable for a genuinely small rider — though see the age guidance below before buying for a child under 9.

Skip it if the rider is older or bigger — a 10-plus kid will outgrow the 12-inch chassis fast, and the Burromax TT750R or Honda-licensed Greenger CRF-E2 are the bikes to grow into. If pure budget is the only goal, a Razor is cheaper (but a lesser bike — see below).

What you actually get

The DK1 runs a 300W motor and a 36V / 5.2Ah lithium battery (about 187 Wh), rated for over 800 charge cycles, with three speed modes topping out at 15.5 mph. Hiboy claims up to 13.7 miles of range; plan for ~9 real miles of stop-and-go kid riding per charge, with a reasonable ~4.5-hour recharge. The chassis is a genuine step above toy grade: full suspension (a front hydraulic shock and rear spring), a disc brake, and 12-inch pneumatic (air) tires for real traction — not the hard plastic wheels of cheaper minis. Max rider weight is about 140 lb.

Why it's the gentle-first-bike pick

Two things set the DK1 apart at its price. First, weight: at ~38 lb it's less than half what a lead-acid mini weighs, so a small rider can handle it and you're not deadlifting a downed bike. Second, the lithium battery: it charges in a few hours instead of overnight, and it keeps the bike light. Add the three-stage speed limiter — the single most important feature on a kids' bike — and the DK1 is genuinely built around a young beginner, not just shrunk to fit one.

The honest limits

It's a small, entry bike, and it shows: the 15.5 mph ceiling and 12-inch wheels mean a growing rider moves on within a couple of years, the ~9-mile real range makes for short sessions, and there's no pretending it's a "keep for years and upgrade" platform. That's not a knock — it's what a first bike is. Buy it for the stage, not for the long haul.

Hiboy DK1 vs the toy-tier Razor

The most useful comparison for a budget shopper: the DK1 is the step up from a Razor MX350 that's almost always worth the extra ~$110. The Razor MX350 (~$249) is the cheapest intro, but it's a heavy (70 lb) sealed-lead-acid design with no suspension, a drum brake, and a ~12-hour charge. The DK1 answers with half the weight, a lithium battery that charges in ~4.5 hours, full suspension, and a disc brake. For a young child especially, that lighter, better-braked, quicker-charging package is the better first bike.

Safety and age

The DK1 tops out at 15.5 mph, but its 5 mph low mode is what makes it a sound first bike — that is the lowest floor of any bike we track. Be clear about what the authorities actually say, though: the CPSC and the American Academy of Pediatrics advise against e-bikes for children under 9, and recommend kids 9–12 stay under about 10 mph. Hiboy rates the DK1 from age 3; that is the manufacturer's position, not ours. Keep it in low to start, insist on a helmet and full gear every ride, supervise, and open up the speed only as skill grows. Like every bike on our board it's not street-legal (why); ride on private property or designated areas.

How it compares

BikePriceTop speedBatterySuspension / brakesScore
Hiboy DK1$35915.5 mph (5/7.5/15.5 modes)187 Wh lithiumFull / disc81
Razor MX350$24914 mph168 Wh SLANone / drum71
Burromax TT750R$99526 mph475 Wh lithiumFront / hydraulic75
Greenger CRF-E2$1,79920 mphlargerFull / disc83

The DK1 is the gentlest and lightest of the group — the young-beginner pick. The Burromax and Greenger are bigger, faster bikes for older kids — not better first bikes.

Bottom line

The Hiboy DK1 is the gentlest and most beginner-friendly electric dirt bike we track, and at 38 lb among the lightest — the right first bike for a young child. Its 81 reflects how well it does that one job, and the light lithium build, three-stage speed limiter, full suspension, and disc brake make it a genuinely good tool for the 3-to-8 first-bike slot. Older or bigger kid? Step up to the Burromax or Greenger. Testing the waters on the cheap? The Razor is less bike but less money. Not sure which fits your child? Our kids guide and the Find Your Ride configurator will match it.

Go deeper on the Hiboy DK1:

VoltRipper is spec-verified and data-driven — we do not claim hands-on testing of this bike. Specs and prices are cross-checked against the sources listed above and re-verified regularly; real-world figures are our own estimates, clearly labeled.

FAQ

Is the Hiboy DK1 a good first electric dirt bike for a young kid?

Yes — for the littlest riders it's one of the best gentle entries. Three speed modes (5, 7.5, and 15.5 mph) let you start a 3–4-year-old at walking pace and open it up as they grow, and at ~38 lb with a lithium battery, full suspension, and a disc brake it's far better hardware than a toy-tier bike. Its VoltRipper Score of 81 is strong for its class — our Score judges it as a first bike, and it's an excellent one: built to be gentle, not fast.

What age is the Hiboy DK1 for?

Hiboy rates it for young kids (roughly ages 3–10, up to a 140 lb rider), and its small 12-inch-wheel size suits the younger end of that best. Note that Hiboy's floor is well below what the safety authorities advise: the CPSC and the American Academy of Pediatrics recommend against e-bikes for children under 9, and that kids 9–12 stay under about 10 mph. Read the age-3 rating as the manufacturer's, not ours. If you buy it for a child under 9, that is a judgment call you are making against published guidance — keep it in the 5 mph mode, off-road, under direct supervision. A bigger or older kid will outgrow it quickly.

Hiboy DK1 vs Razor MX350 — which should I buy?

The DK1 is the meaningful step up for about $110 more. Where the Razor MX350 (~$249) uses a heavy sealed-lead-acid battery (70 lb, ~12-hour charge, no suspension, drum brake), the DK1 (~$359) is ~38 lb with a lithium battery (~4.5-hour charge), full suspension, and a disc brake. For a young child, the DK1's lighter weight and gentler low-speed mode alone are worth the difference.

Best for

young kids (3–10)a lithium upgrade over SLA toyssafe speed-limited learning