Fastest Electric Dirt Bikes

The short answer

The bike with the highest top-speed claim we track is the Altis Sigma (VoltRipper Score 90), at 80+ mph on paper — though that's a best-case number, and in the real world it's an ~70+ mph machine, effectively tied with the American-made Dust Moto Hightail (86) at about 75 mph. No one has published a verified top-speed run on the top group, so this chart is a claim-side ranking, not a settled crown. The Arctic Leopard XE Pro R (91) sits just behind with a 72 mph official claim and a 63 mph dealer conflict.

The Sur-Ron Storm Bee changed position on this page in July 2026, and it is worth explaining why. We carried it at ~75 mph, the figure most of the internet repeats. Rendering Sur-Ron's own spec page directly, the published number is 68.3 mph — exactly 110 km/h, where 75 mph is exactly 120 km/h. We rank on the manufacturer's current figure, so the Storm Bee (96) now sits fourth here rather than second. It is the same excellent machine; it is not the speed leader we previously described. The Stark Varg MX shows roughly 68 mph in stock motocross gearing — now effectively level with the Storm Bee — while the Onyx RCR (94), Talaria Komodo (91), and Rawrr Mantis X Pro (89) all sit around 65 mph.

One surprise worth calling out: in stock motocross gearing, the Storm Bee beats the Stark Varg MX on top speed despite the Stark's enormous 60 kW motor — because top speed is set by gearing and tuning, not raw watts. The Stark is highly configurable, though: geared for speed it can run well past 80 mph (owners have reported triple digits), at the cost of the race-ready acceleration it's built for. The road-legal Stark Varg EX shares the 80 hp class, but Stark does not publish a top-speed number for it, so it is intentionally not ranked here. So "fastest" is partly a tuning choice, not a fixed spec — and fastest ≠ most powerful.

An honest note on "fastest"

Chasing top speed is fun, but be clear-eyed about the trade-offs before you buy the quickest bike you can find:

• These are expert machines. The fastest bikes are also the heaviest and most demanding — the wrong first bike.
• Mostly not street-legal. Assume off-road use only; road riding needs a kit and a permitting state.
• Speed is the least useful number for most riding. On real trails, handling, torque, and range matter far more than a top-speed figure you'll rarely reach.
• The headline number is a claim, not a clocked run. The Altis Sigma tops this list on its 80+ mph claim, and it's earned a scored spot: real product, priced, imaged, and shipping through multiple US dealers. But be clear-eyed — 80 is a best-case manufacturer figure (VORO even quotes 90 mph "ideal conditions," then notes it adjusted its 2026 specs downward), real-world accounts describe a "over 70 mph" bike, and the MX-geared version tops out at 68. Nobody has published an instrumented top-speed test, here or on its rivals. So the Sigma leads on paper; in practice the top three are within a few mph of each other. See our full Altis Sigma review for the complete breakdown.
• One more speed contender is still held. The Bonnell 902 (90+ mph claimed) is a genuine bike, but pre-production (Q4 2026 launch, specs still in flux), so we're holding it until it ships and publishes final numbers.

Buy fast because you genuinely want the capability — not because a bigger number must mean a better bike. (New to the numbers? See how fast electric dirt bikes actually go — including why so many ship limited to 20 mph and why the advertised top speed is often optimistic.)

The fastest, ranked

Highest top-speed claim — Altis Sigma. A 97.2V, 25 kW trail bike with the biggest top-speed number in our catalog: 80+ mph claimed, a real-world ~70+ mph (see the review for why the headline is a best-case figure). Dealer-listed and shipping, with the honest caveats that its platform is far younger than Sur-Ron or Talaria and that no one has clocked its top speed. (Full review → · Altis vs Sur-Ron Ultra Bee →)

Best-supported bike in the fast tier — Sur-Ron Storm Bee. A full-size, motorcycle-class machine at its official 68.3 mph, backed by the deepest support network in the segment. It is no longer the speed rival to the Altis and Hightail we previously called it — Sur-Ron's own spec page publishes 110 km/h, not the 120 km/h (75 mph) figure repeated across the web — but it remains the safest ownership play up here, and it still edges the far more expensive Stark Varg MX in stock gearing. Also check availability before you shop it: we could not find it in stock at an authorized US dealer in July 2026. (Full review →)

Second-fastest, American-made — Dust Moto Hightail. At ~75 mph the Hightail is now the fastest bike here after the Altis, and the rare serious American-made e-moto — designed in Oregon, assembled in Detroit — a full-size premium machine at $10,950. It used to share this spot with the Storm Bee; on Sur-Ron's official 68.3 mph the Hightail is clear of it by nearly 7 mph. The Storm Bee still carries a higher Score and a much lower price, so the Hightail is the buy specifically if outright pace, American manufacturing, and a swappable pack matter more than value. (Full review →)

New full-size speed contenders — Arctic Leopard XE Pro R and Talaria Komodo. The XE Pro R has the bigger speed number on paper — 72 mph officially claimed, with a real dealer conflict at 63 mph — while the Komodo is the cleaner 65 mph claim with more peak power and full-size 21/18 geometry. Both are expert-oriented, off-road machines; buy them for big-terrain capability, not casual speed runs. (XE Pro R vs Ultra Bee → · Komodo vs Ultra Bee →)

Fastest proven sub-$5k alternative — Rawrr Mantis X Pro. The Altis owns the raw speed crown now, at $5,299, but the Rawrr remains the more familiar platform choice — and at Rawrr's actual $3,899 MSRP it's now $1,400 cheaper than the Altis while giving up ~5 real mph, which is the value pick of the two if you can find one in stock. (Full review → · vs Talaria MX5 Pro →)

Fastest with the most bike — Stark Varg. The Varg's 60 kW makes it the acceleration king even if its top speed is capped below the Storm Bee's; it's a purpose-built electric motocross weapon at a halo price.

The real-world caveats

Every bike here ships factory-tuned, and several are speed-limited out of the box — the quoted top speeds often require derestriction, which is on you and can affect warranty and legality. And remember the range reality: the faster you ride, the harder the battery drains, so these top-speed numbers and real-world range live at opposite ends of the throttle.

The bottom line

For the biggest top-speed number on paper, the Altis Sigma now leads — just know it's a best-case claim, and in the real world the top group runs close together. For the safer proven-platform speed pick, look at the Sur-Ron Storm Bee; for full-size 21/18 speed value, the Arctic Leopard XE Pro R and Talaria Komodo now matter; for the familiar sub-$5k alternative, the Rawrr Mantis X Pro still matters; and for sheer motocross power, the Stark Varg remains the weapon. But if you're a newer rider — or you mostly ride tight trails — the fastest bike isn't the best bike for you. Run the Find Your Ride configurator to match speed to your actual skill and riding.

VoltRipper is independent — our picks come from verified specs and the transparent VoltRipper Score, not commissions. Affiliate disclosure is included on monetized pages, and we are spec-verified/data-driven rather than hands-on until first-hand testing exists.