The verdict
The Burromax TT250 (VoltRipper Score 75) is a full-suspension budget mini with one fact most listings leave out: Burromax rates it 12+. At a 21-inch seat and 12.5-inch wheels it looks like a young child's first bike, and until 2026-09-14 we described it as one. Burromax's own spec block for the TT250 says "RECOMMENDED AGE: 12+ years old", and that is the rating we now publish.
Judged as a small bike for a rider of 12 or older, it is a lot of chassis. It has hydraulic front forks and an adjustable rear mono-shock, a 140 mm rear disc brake, and a two-speed 7/14 mph switch. The Razor MX350 at the same size has no suspension and a rear drum brake. That hardware is why the TT250 scores 75, level with its lithium sibling the TT350R.
Two things hold it back. The sealed lead-acid battery is heavy, slow to charge and short on range. And as of 2026-09-14 the bike is out of stock at Burromax, listed at $399.95. The August sale price we used to quote is no longer on its page.
Who it's for — and who should skip it
Buy it if your rider is 12 or older but still small: under 150 lb with gear, and short enough that a 21-inch seat fits. That rider gets real suspension, a disc brake and a low-speed mode for less than the lithium TT350R.
Skip it if your child is under 12. Burromax does not rate it for them, and our kids guide sorts the bikes that are rated for them by age. Skip it too if your rider is over 150 lb with gear, which is this bike's limit; the TT350R carries 180 lb. And skip it if you want two rides in a day, because the lead-acid pack wants up to eight hours on the charger.
What you actually get
The TT250 runs a 24V, 250W motor off two 12V, 7Ah sealed lead-acid batteries, which is 168 Wh. It drives the rear wheel by chain. Top speed is about 14 mph in high. Low is a 7 mph setting for learners. Burromax claims up to 12 miles of range at a 100 lb rider. A full charge takes up to 8 hours, and the manual asks for up to 12 hours for the first one.
The frame is steel, with hydraulic front forks, an adjustable rear mono-shock, a handlebar-mounted 140 mm rear disc brake and 12.5-inch knobby tires front and rear. It weighs 54.6 lb, with a 21-inch seat and a 150 lb rider limit.
The speed switch is a parental control in all but name. It is a rocker switch behind a hole in the battery cover, flipped with a small tool or a toothpick, and the bike ships in the slow setting (Burromax's quick-start guide). Changing modes means stopping and reaching for a tool, not flicking a switch on the bars.
The battery is not a dead end. Burromax's TT-series manual says lithium and lead-acid batteries may be interchanged in the TT250 models, as long as the charger matches the battery.
Where it wins, where it costs
Where it wins: the chassis. Full suspension and a disc brake are unusual at this size, and the 150 lb limit gives a small rider room to grow. That is why it scores 75 despite a lead-acid pack.
Where it costs you: the battery, and now the stock. Burromax's manual puts average lead-acid life at 1 to 2 years (about 300 cycles), against 3 to 4 years (about 500) for lithium. The 12-mile range is a light-rider claim, and a heavier rider sees less. The lithium TT350R costs $300 more, cuts the charge from 8 hours to 3.5, and adds 8 miles of claimed range. Burromax is also a smaller brand than Razor, and its product page does not say whether the rear disc is hydraulic or cable.
Safety and age
Burromax rates the TT250 12+. Its owner's manual says the recommended age "is only an estimate, and can be affected by the rider's size, weight or skills". It adds that "any rider unable to fit comfortably on the Mini Bike should not attempt to ride it." Read together, 12 is the floor and fit is the test.
For a new rider, leave it in the 7 mph setting it ships in. Keep a helmet and full gear on every ride, supervise, and keep it off-road. Like every bike on our board it is not street-legal (why).
How it compares
| Bike | Price | Maker's age rating | Top speed | Battery | Suspension / brakes | Score |
|---|---|---|---|---|---|---|
| Burromax TT250 | $399.95 (out of stock) | 12+ | 14 mph | 168 Wh lead-acid | Full / rear disc | 75 |
| Razor MX350 | $299 | 8+ low / 13+ high | 14 mph | 168 Wh lead-acid | None / rear drum | 68 |
| Burromax TT350R | $699.95 | 12+ | 17 mph | 240 Wh lithium | Full / rear disc | 75 |
| Burromax TT750R | $995 | 16+ | 26 mph | 475 Wh lithium | Full / hydraulic | 79 |
Read the table as a ladder. The TT250 and TT350R share a chassis and a 12+ rating. They differ in the battery (lead-acid against lithium), the motor (250W against 350W) and $300. The TT750R is a genuinely faster bike, rated 16+. The MX350 is the only bike here rated for a younger child, and only in its low mode.
Bottom line
The Burromax TT250 is a well-equipped small mini for a rider who is 12 or older and still small. It has full suspension, a disc brake and a two-speed switch that ships in the slow setting, and it scores 75. It is not the young child's bike its size suggests, because Burromax rates it 12+. Its real weakness is the lead-acid battery, and right now it is out of stock at Burromax.
If it comes back and the rider fits, it is the cheapest full-suspension Burromax we track. If it doesn't, the lithium TT350R is the same idea done better. For a younger child, start from our kids guide or the Find Your Ride configurator.
Correction, 2026-09-14: this review previously said the TT250 was rated from age 6, recommended it for 6-to-10-year-olds, quoted an August sale price as its price, and compared its Score against stale figures. Burromax's own spec block rates it 12+, and it now lists at $399.95, out of stock.
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
What age is the Burromax TT250 for?
Burromax rates it 12 and up. That is the figure in the TT250's own spec block on burromax.com, alongside its 14 mph top speed and 150 lb rider limit. At a 21-inch seat and 12.5-inch wheels it looks like a young child's bike, so check the rating before buying it for one. Burromax's owner's manual adds that the rating is only an estimate, affected by the rider's size, weight and skill, and that anyone who cannot fit on the bike comfortably should not ride it. So 12 is the maker's floor, and fit decides whether a particular 12-year-old suits it.
Is the Burromax TT250 a good electric dirt bike for kids?
For a rider of 12 or older who is still small, it is a capable budget mini, with front and rear suspension, a rear disc brake and a two-speed 7/14 mph switch. For a child under 12 it is not the bike Burromax recommends, whatever its size suggests. Its weak point is the sealed lead-acid battery, which Burromax rates for up to 12 miles at a 100 lb rider and up to 8 hours on the charger. As of 2026-09-14 it is out of stock at Burromax, listed at $399.95.
Burromax TT250 vs TT350R: what's the difference?
The battery, and what follows from it. The TT350R swaps the TT250's 168 Wh lead-acid pack for 240 Wh of lithium, which cuts the charge to about 3.5 hours and lifts claimed range from 12 to 20 miles. It also runs 17 mph instead of 14 and carries 180 lb instead of 150. Burromax rates both 12+, and both score 75 on our board. The TT350R lists at $699.95, which is $300 more.
Burromax TT250 vs Razor MX350: which is better?
The TT250 is the better-built bike: it has full suspension and a rear disc, where the Razor MX350 has no suspension and a rear drum. That is why the TT250 scores 75 and the MX350 scores 68. But for a child under 12, the MX350 is the one the maker actually rates for them. Razor says 8+ in its 10 mph low mode and 13+ in its 14 mph high mode. The MX350 is also $299 and widely stocked, while the TT250 is out of stock at Burromax.