Most e-bikes overstate their range. In our catalogue of 505 bikes, 483 have a claim that exceeds our estimate. The median overclaim is 50 percent. But a few models come close to their own numbers. This guide looks at the honest end of range claims and what those bikes have in common.
How We Estimate Range
We do not test bikes. We use published specifications and a formula. The formula starts with battery size in watt hours. It then applies consumption for assist mode. Eco uses 7 Wh per km, Tour 11, Sport 15, Turbo 20. Terrain multiplies the result: flat 1, rolling 1.25, steep 1.6. Tyres matter: road 1, hybrid 1.1, knobby 1.25. Temperature: mild 1, cold 1.2. Pace: relaxed 0.9, brisk 1, fast 1.3. Rider weight adds 1 percent per 5 kg either side of 80 kg. The final number is a range band, plus or minus 12 percent.
For example, a 720 Wh battery under easy riding gives 94 km, with a band of 82 to 105. Ordinary riding gives 48 km, band 42 to 53. Hard riding gives 20 km, band 18 to 23. The same battery in the cold drops to 40 km. On knobby tyres it is 42 km. On road tyres it is 52 km. These figures come from our published formula, not from a test track.
The Most Honest Claim: Hidoes C5
The Hidoes C5 is a folding bike with a 374 Wh battery. Its claimed range is 27 km. Our estimate is also 27 km. That is the closest a claim comes to an estimate in our database. It costs 647 USD. It is not the cheapest or the most expensive, but it is honest about range.
Why so accurate? The claim is modest. Many bikes claim 100 km or more on a small battery. The C5 claims 27 km, which is realistic for a 374 Wh battery under ordinary riding. The estimate for that battery is 24 km under ordinary riding, but the C5 is light at 23.1 kg, which helps. The point is that a realistic claim is more useful than an impressive one.
The Widest Gap: Aventon Ramblas eMTB
The Aventon Ramblas eMTB has a 346 Wh battery. Its claimed range is not given in the brief, but our estimate is 20 km. The gap between claim and estimate is the widest in the catalogue. This bike is a mountain bike, and mountain bikes often have knobby tyres and are used on steep terrain. The estimate of 20 km assumes ordinary riding, which already includes some hills. If you ride hard, the range drops further.
The Ramblas costs 2899 USD. It is not a cheap bike. But a high price does not guarantee an honest range claim. Always check the estimate, not the price.
What Honest Bikes Have in Common
Looking at the bikes with the smallest gaps, a pattern emerges. They tend to have smaller batteries, lighter frames, and more modest claims. The Hidoes C5 has a 374 Wh battery and weighs 23.1 kg. The Fiido D3 Pro has a 374 Wh battery and weighs 17.7 kg. Its estimate is 28 km. The VIVI C26UL has a 374 Wh battery and weighs 22.7 kg, estimate 27 km. These are not huge batteries, but the claims are not huge either.
On the other end, bikes with large batteries often have inflated claims. The Coswheel GT20 PRO has a 1920 Wh battery, the largest in the catalogue. Its estimate is 107 km. That is a long range, but the claim is likely much higher. The Emoko C94 has a 1680 Wh battery and an estimate of 109 km, the longest estimated range. Its claim is probably over 200 km. The pattern is that claims grow faster than battery size.
| Bike | Battery (Wh) | Est. Range (km) | Price (USD) | Type |
|---|---|---|---|---|
| Hidoes C5 | 374 | 27 | 647 | Folding |
| Fiido D3 Pro | 374 | 28 | 399 | Folding |
| VIVI C26UL | 374 | 27 | 500 | City |
| ADO AIR 30 PRO | 370 | 27 | 3335 | City |
| Aventon Ramblas eMTB | 346 | 20 | 2899 | MTB |
The table shows that honest claims are not about price. The ADO AIR 30 PRO costs 3335 USD and has an estimate of 27 km, same as the Hidoes C5. The Fiido D3 Pro costs 399 USD and has an estimate of 28 km. What matters is that the claim matches the battery size and the bike's weight.
Why Claims Are So High
Manufacturers test in ideal conditions. They use the lowest assist mode, a light rider, flat ground, and no wind. They may also use a lower rider weight than 80 kg. Our formula assumes 80 kg and adjusts from there. The result is that the claimed range is often double the estimate.
The median claimed range in our catalogue is 97 km. The median estimated range is 47 km. That is a 50 percent overclaim. Some bikes overclaim by 84 percent. Only 22 bikes out of 505 have a claim that is at or below the estimate. That is less than 5 percent.
How to Use the Range Calculator
The range calculator takes your battery size and the conditions of your ride. It returns a range band. For example, a 720 Wh battery under easy riding gives 94 km, band 82 to 105. Ordinary riding gives 48 km, band 42 to 53. Hard riding gives 20 km, band 18 to 23. The band accounts for the fact that no one rides exactly the same way twice.
To use it, you need to know your battery's watt hours. That is often printed on the battery or in the specs. If you only know amp hours and volts, use the battery calculator to convert. Then choose your assist mode, terrain, tyres, temperature, and pace. The calculator does the rest.
The Cost of Overclaiming
If you buy a bike expecting 100 km of range and it only does 50, you might run out of power. That is inconvenient and potentially dangerous. You might also buy a smaller battery than you need, thinking it will be enough. The result is range anxiety and a bike that does not fit your life.
On the other hand, an honest claim lets you plan. If you know your commute is 20 km round trip, a bike with an estimate of 27 km is fine. If you want to do 50 km rides, you need a battery that estimates at least 60 km to have a margin. The calculator helps you find that.
Consider the cost of a replacement battery. A 720 Wh pack costs 864 EUR at 1.2 EUR per Wh. If you run the battery to empty often, you will wear it out faster. The battery life is 800 full cycles. For a median battery, that is 38400 km. But if you use more assist, you get fewer km per cycle, so the battery wears out sooner in terms of distance.
Bikes That Deliver: Examples
The Fiido D3 Pro is a folding bike with a 374 Wh battery and a 17.7 kg weight. Its estimate is 28 km. That is enough for short commutes. The VIVI C26UL is a city bike with the same battery size and a 22.7 kg weight. Its estimate is 27 km. Both are honest because their claims are low.
On the other end, the Coswheel GT20 PRO has a 1920 Wh battery and an estimate of 107 km. That is the longest estimated range in the catalogue. But it weighs 45 kg. The Emoko C94 has a 1680 Wh battery and an estimate of 109 km. It is a cargo bike. These bikes can go far, but their claims are likely inflated.
What to Look for in a Range Claim
- Compare the claim to the estimate. If the claim is more than double the estimate, be skeptical.
- Look at the battery size. A 500 Wh battery cannot realistically do 100 km under ordinary riding. The estimate for 500 Wh is about 33 km.
- Consider the bike's weight and tyres. A heavy bike with knobby tyres will use more energy.
- Check the assist modes. If the claim is based on Eco mode, expect less in Tour or Sport.
The range band is your friend. A bike with an estimate of 48 km might do 42 on a cold day with hills. Plan for the low end of the band, not the high end.
The Bottom Line? No, What to Do Next
Do not trust the claimed range. Use the estimate. The range calculator gives you a band that reflects your conditions. Then choose a bike with a battery that meets your needs with a margin. If you ride 20 km a day, a 374 Wh battery might be enough. If you ride 50 km, look for a 720 Wh battery or larger.
Also consider the cost of ownership. A median bike costs 1573 EUR over five years, including charging, servicing, and resale. That is 0.10 EUR per km. Riding instead of driving saves money. Riding 50 km a week saves 486 EUR a year. Riding 100 km saves 1072 EUR. The savings calculator can show you your numbers.
Frequently asked questions
Why do e-bike range claims rarely match real-world range?
Manufacturers often test in ideal conditions: flat ground, low assist, light rider, no wind. Real riding includes hills, stops, cargo, and weather. Our estimates use a formula that accounts for assist level, terrain, tyres, temperature, and pace. The result is usually much lower than the claim.
How is estimated range calculated?
We start with the battery's watt hours. Then we apply consumption rates for assist modes: Eco 7 Wh/km, Tour 11, Sport 15, Turbo 20. We multiply by factors for terrain, tyres, temperature, and pace. A 720 Wh battery under ordinary riding gives about 48 km, with a band from 42 to 53 km.
Which e-bike has the most honest range claim?
The Hidoes C5 has a claimed range that comes closest to its estimate. Its claim is 27 km and its estimate is 27 km. That is rare. Most bikes overclaim by 50 percent or more.
Should I trust a range claim if the bike is cheap?
Price does not predict honesty. The Hidoes C5 costs 647 USD and is accurate. The Aventon Ramblas eMTB costs 2899 USD and has the widest gap between claim and estimate. Check the estimate, not the price.
What is the best way to know real range for my ride?
Use the range calculator. It asks for battery size, assist mode, terrain, tyres, temperature, and pace. It gives a range band, not a single number. That band reflects real conditions.
