Vietnam's first homegrown electric motorbike, decoded honestly. A 6 kW commuter whose standout is a long claimed range paired with fast charging that genuinely embarrasses its rivals. Here is what the 200 km claim really means, and what it costs. Sources on everything.
A real, locally engineered commuter, not a rebadged import, whose range and charging genuinely separate it from cheaper rivals. Plan for ~129 km of real range (not 200, but still class-leading), ~1 hour for the first 100 km of charge, ~$2,710 net to own over 5 years on Vietnamese rates, and one caveat: there is no support outside Vietnam.
Assumptions: Vietnam pricing (~54.9M VND, ~$2,389; ~25,000 VND/USD), ~3,000 mi/yr, ~$0.10/kWh local rate, low local insurance and registration, minimal maintenance, ~28% resale. Vietnam-specific estimates. Full table in §10.
Every module behind the headlines: who it is for, claims vs. physics, the charging advantage, true cost, reliability, parts, and the standard scorecard. All sourced.
The Weaver 200 is a 6 kW electric motorbike from Dat Bike, recognized by Vietnam's Ministry of Transportation as the country's first domestically made e-bike. It is a real, locally engineered product, not a rebadged import. Its pitch is simple: more range and faster charging than the cheap commuter packs it competes against, under $2,500. The range claim of 200 km is a best-case figure (plan for ~129 km), but the fast charging is genuinely real and rare at this price. The catch: no aftermarket or support outside Vietnam, and a young startup's short track record. Here is exactly how the math works.
Start here, the right answer depends on where you ride and how much you value the fast charging.
Same bike, very different answer depending on the rider and the country. We lead every report with this so nobody buys the wrong machine.
The sweet spot. Class-leading usable range and genuinely fast charging make this an excellent daily commuter, and Dat Bike's growing service footprint in major Vietnamese cities supports it. The home-market case is strong.
The headline reason to choose it. About an hour for the first 100 km, three hours full, where typical rivals take six to eight. Dat Charge stations cut a 100 km top-up to roughly 20 minutes. Fast charging at this price is rare.
Dat Bike is a young startup, so long-term durability data is still limited. The bike is well received, but if you need an established, decade-long reliability track record, this is not yet that.
There is no aftermarket or support outside Vietnam. As impressive as the bike is, owning one abroad means no parts pipeline and no service network. A non-starter elsewhere.
Same bike, two stories. The struck-through line is the listing; the big number is what to actually expect. The "why" is in Part C.
What is genuinely an edge here, and what is now common. The part the brand's own page never separates for you.
The Weaver 200's standout is charging speed at a price point where it is rare. Each badge tells you whether it is a real edge or now common.
The genuine edge. About an hour for the first 100 km and three hours for a full charge, where typical sub-$2,500 commuters take six to eight. Dat Charge ultra-fast stations cut a 100 km top-up to roughly 20 minutes. Rare at this price and a real ownership advantage.
★ Genuine edgeEven discounted to a real ~129 km, this is class-leading usable range for the segment, and the regional press has praised it accordingly. Dat Bike markets it as a full week of riding.
✓ SolidAn improved regenerative-braking algorithm over the original Weaver recovers energy on deceleration and tidies up around-town riding. A real, useful refinement.
✓ SolidRecognized as Vietnam's first domestically made e-bike. Not a spec-sheet line, but a real distinction: a locally built product with a local service network, not a rebadged import.
★ Genuine edgeMarketing specs vs. the physics. The math is simple, battery size and a few formulas, so let us run it.
Convert the watts to the unit everyone feels, and set honest expectations on pace.
The Weaver 200 runs a steady 6 kW motor with a top speed around 90 km/h (~56 mph). Here is the math:
The headline gap, but a gentle one. Dat Bike's 200 km is a best-case figure at a steady low speed; the real number is still class-leading. Here is the arithmetic.
Step 1, real energy in the tank. Range starts with how much energy the battery holds: voltage × amp-hours.
Step 2, how much you spend per km. Consumption rises with speed because drag grows with the square of speed. Dat Bike's own figures show it directly: 200 km at a steady 35 km/h, but only 130 km at 70 km/h.
Most "fast charge" badges shrink under testing. This one holds up, and it is the bike's real advantage.
The Weaver 200 charges its first 100 km in about an hour and reaches full in around three hours, where typical sub-$2,500 commuters take six to eight. The fast-charge claim matches the baseline data, so it is real. Run the sanity check:
Shopping across sources, you will see this bike quoted with different numbers. Here is how to read them.
| You will see | What it really is | Trust it? |
|---|---|---|
| "200 km" vs "130 km" | 200 km at a steady 35 km/h; 130 km at 70 km/h. Both are Dat Bike's own figures. | honest, speed-dependent |
| 72V 68Ah / "4 kWh" | Multiply V×Ah: 72 × 68 = ~4.9 kWh. Some sources round low to 4. | do the math |
| 6,000 W | Motor power. ~8 hp; steady, not a peak headline. | real |
| "1 hr / 100 km" | Fast-charge claim; verified and genuinely quick for the class. | real |
| "20-min top-up" | At Dat Charge ultra-fast stations only, not a home outlet. | station-only |
| Price in VND | ~54.9M VND; Vietnam-specific. Convert at current rates. | verify locally |
The sticker is the smallest number in the story. Here is the whole bill, on Vietnamese rates.
Pricing is Vietnam-specific. We use the quoted local figure and itemize the rest.
| Line item | Typical | Notes |
|---|---|---|
| Bike (incl. battery) | ~$2,300 | ~54.9M VND at ~25,000 VND/USD |
| Registration / local fees | low | Lower than a car; Vietnam-specific |
| Starter gear (helmet, gloves) | $150–$300 | Always budget for it |
| Realistic out-the-door | ≈ $2,450–$2,600 | Before a single kilometre |
The number almost no one shows you. We itemize it on Vietnamese rates and state every assumption.
| Cost over 5 years | Estimate | What drives it |
|---|---|---|
| Purchase (incl. battery) | $2,300 | ~54.9M VND; Vietnam price |
| Service & consumables | $400 | Simple drivetrain, low upkeep |
| Gear (one-time) | $300 | Helmet, gloves |
| Insurance / registration | $250 | Low local rates |
| Electricity (charging) | $110 | ~$0.10/kWh local, math below |
| Battery (replace) | $0 | Rated long-life; none expected in 5 yr |
| 5-year total (before resale) | ≈ $3,360 | |
| Resale value (yr 5) | – $650 | ~28% of purchase |
| Net true cost to own | ≈ $2,710 | ≈ $542 / year |
What the experience is really like, and the caveats around a young startup.
We read the coverage so you do not have to, and summarize the recurring themes. Note that long-term durability data is still limited given the company's short history.
A bike is only as ownable as its support network. Here the answer splits sharply by country and even by city.
Dat Bike runs a direct-to-consumer model with a growing Vietnamese service footprint, strongest in major cities. The Dat Charge fast-charging network adds genuine convenience where it exists. Outside Vietnam there is no aftermarket or support, and even inside Vietnam, coverage is best in the big cities. This is the defining ownership fact for this model.
| Part / service | Availability | Notes |
|---|---|---|
| Service (major VN cities) | good | Direct-to-consumer network |
| Dat Charge fast network | good where present | ~20-min 100 km top-up |
| Service (rural VN) | growing | Concentrated in big cities |
| Anything outside Vietnam | none | No parts or support |
One scorecard, identical axes on every bike.
Every e-two-wheeler on the site is scored on these same eight axes, by the same rules, so a 7 here means the same thing as a 7 anywhere.
Our standing methodology, run identically on every e-two-wheeler, including bikes we would otherwise have reason to flatter.
The only honest way to compare two batteries. 72V × 68Ah holds ~4.9 kWh, more than a rounded "4".
You never use 0 to 100%. The BMS holds a reserve and voltage tapers at the bottom. We assume ~88%.
Consumption is the lever: 200 km at 35 km/h, ~129 km at 70 km/h. Drag rises with speed².
Always ask which number a spec quotes. Here 6 kW is a steady output, ~8 hp.
"Fast charging" is meaningless without the charger's wattage. Here ~3 hr full checks out.
| Cost assumption | We used | Change it if… |
|---|---|---|
| Annual mileage | ~3,000 mi/yr (15,000 / 5 yr) | You ride more → service & tires rise |
| Electricity rate | ~$0.10 / kWh (Vietnam) | Your utility differs |
| Insurance / registration | Low local rates | Your market differs |
| Battery life | No replacement in 5 yr | Hard use → sooner; data is young |
| Resale | ~28% of price at yr 5 | Condition & market vary |
We cite everything and date it, because specs, prices and exchange rates change. Manufacturer figures are labeled as claims; real-world numbers are our estimates from the methodology above. Spot an error? Our corrections policy means we fix it in public.
Sources retrieved May 2026. Manufacturer pages state claimed specs; treat them as marketing figures, not independent tests. Prices are Vietnam-specific and converted at approximate rates; re-verify locally before relying on them.