The short answer
Folding e-bikes fold to between 3.13 and 17.20 cubic feet — a 5.5x spread inside one category. The 29 lb Urtopia Carbon Fold 1 ($1,799) is the lightest here; the Lectric XP4 750 Long-Range ($1,299) folds smallest in the value tier and carries the biggest battery. Only three of eight weigh under 50 lb.
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Prices last verified August 2026.
If you're shopping for a folding electric bike, you already know why you want the fold. It's a boot, a closet, a hallway, a train, a caravan locker, a fourth-floor walk-up with no bike room. You have a space problem, and the bike has to solve it.
Almost none of the guides ranking for this query will tell you whether a given bike actually solves it. They'll tell you the motor is 750W and the range is 85 miles, and then they'll put a 39-pound bike that folds to three cubic feet in the same numbered list as a 72-pound bike that folds to seventeen. Those are not the same product. They are barely the same category.
So this page starts with the fold, and turns it into one number you can compare.
The constraint filter: what "folding" actually rules out
Three things decide whether a folding e-bike solves your space problem. Only one of them is reliably on the spec sheet, and it's the one nobody normalizes.
The folded box, not the word "compact." Every brand here calls its bike compact. Converted to a folded bounding box — published length × width × height — the eight picks on this page run from 3.13 cubic feet to 17.20 cubic feet. That is a 5.5× spread inside a single product category. The word "folding" tells you the bike has hinges. It tells you nothing about whether the result fits where you need it to fit. Measure your space first, in inches, in all three dimensions, and treat the tightest one as a hard filter — it's usually the doorway or the boot opening, not the floor area.
The fold changes the shape, not the mass. This is the one that catches people. A folding e-bike weighs the same folded as it does unfolded, and the median weight across these eight is 60.5 pounds. Only three of the eight weigh under 50 pounds. If your plan involves stairs, a train vestibule, a bike rack you lift onto, or a boot lip you have to clear, weight is your real constraint and the fold is nearly irrelevant to it. Buyers clearly sense this: roughly 2,470 US searches a month append "lightweight" or "lightest" to this query, which is the market asking a question the ranking pages don't answer.
And it is not the battery making them heavy. Lectric is one of the few brands that publishes a battery weight: 9 pounds of an 840 Wh pack on a 71-pound bike — 12.7% of the total. Take the battery out of every bike here and the lightest is still 29 pounds and the heaviest is still 62.5. The weight lives in the frame, the fat tyres and the hub motor. Anyone telling you a smaller battery will meaningfully lighten a fat-tyre folder is selling you a shorter range for about six pounds.
What the constraint does not rule out: capability. Six of these eight make 500W or more, five carry 300+ pounds, and every one of them has lights and a rack either fitted or included. You are not choosing between folding and useful. You are choosing how much box and how much mass you're willing to accept for the capability.
Quick Picks
Ranked by folded volume first, weight second, capability third. A bike that folds bigger is not listed above one that folds smaller just because it's a better bike.
| Pick | Folded volume | Weight | Price | Verdict |
|---|---|---|---|---|
| Brompton Electric C Line | 3.13 ft³ | from 39.5 lb | $4,700 | The only one that genuinely goes where a bike can't — at 2.6× the price |
| Urtopia Carbon Fold 1 | 9.20 ft³ | 29 lb | $1,799 | The honest answer to "lightweight" — 31.5 lb under the median |
| Lectric XP4 750 Step-Thru Long-Range | 10.56 ft³ | 71 lb | $1,299 | Smallest fold and biggest battery in the value tier. Also the one you can't lift |
| Blix Vika X | 12.69 ft³ | 61 lb | $1,799 | Best lighting package here — turn signals, high/low beam, brake light |
| VTUVIA SF20H | 12.86 ft³ | 60 lb | $1,399 | 85 Nm and a 16" standover; publishes a throttle-only range, which is rare |
| Velotric Fold 1 Plus | 14.44 ft³ | 62 lb | $1,499 | 450 lb payload, highest here — but no published battery capacity |
| Rad Power RadExpand 5 Plus | 17.20 ft³ | 72.5 lb | $1,899 | Best support network in US e-bikes, largest folded box on this page |
| GOTRAX E-Fold | not published | 49 lb | $529 | Half the price of anything else, and it won't tell you how big it folds |
Comparison Table
Prices last verified August 2026. Folded volume is the published folded length × width × height, converted to cubic feet. Every other figure is the manufacturer's own published specification.
| Pick | Folded ft³ | Folded L×W×H | Weight | Battery | Motor | Claimed range | Payload | Price |
|---|---|---|---|---|---|---|---|---|
| Brompton Electric C Line | 3.13 | 23 × 22.2 × 10.6 in | from 39.5 lb | 345 Wh | 250 W | up to 56 mi | not published | $4,700 |
| Urtopia Carbon Fold 1 | 9.20 | 31 × 19 × 27 in | 29 lb | 252 Wh | 250 W / 450 W peak | 40 mi (ECO, 180 lb rider) | 220 lb | $1,799 |
| Lectric XP4 750 ST Long-Range | 10.56 | 37 × 17 × 29 in | 71 lb | 840 Wh | 750 W / 1310 W peak | up to 85 mi | 330 lb | $1,299 |
| Blix Vika X | 12.69 | 36 × 21 × 29 in | 61 lb | 614.4 Wh | 500 W, 55 Nm | up to 70 mi | 312 lb | $1,799 |
| VTUVIA SF20H | 12.86 | 39.3 × 18.9 × 29.92 in | 60 lb | 672 Wh | 750 W, 85 Nm | 70 mi PAS / 40 mi throttle | 330 lb | $1,399 |
| Velotric Fold 1 Plus | 14.44 | 37.8 × 19.7 × 33.5 in | 62 lb | not published | 750 W, 75 Nm | 68 mi | 450 lb | $1,499 |
| Rad Power RadExpand 5 Plus | 17.20 | 41 × 25 × 29 in | 72.5 lb | 720 Wh | 750 W, 64 Nm | 20–60 mi | 315 lb | $1,899 |
| GOTRAX E-Fold | not published | not published | 49 lb | 374.4 Wh | 350 W | up to 40 mi | 264 lb | $529 |
Read the first two columns against the last one. Price does not predict folded size — inside the value tier it inverts. The $1,299 Lectric folds to 10.56 ft³. The $1,899 RadExpand folds to 17.20 ft³. You pay $600 more for 1.63× the folded bulk and 120 Wh less battery. That trade is defensible if you're buying Rad's service network, and indefensible if you're buying a small fold, and no roundup tells you which one you're doing because none of them does the multiplication.
Why the mainstream pick fails this constraint
Search "best folding electric bike" and the RadExpand 5 Plus is close to unavoidable. It's the folding bike from the most established e-bike brand in the US, it has the best dealer and parts network here, and it publishes an honest 20–60 mile range band instead of a single best-case number. On the merits it's a good bike and its reputation is earned.
It is also 72.5 pounds and folds into 17.20 cubic feet — the heaviest bike and the largest folded box on this page. Those 20" × 4.0" fat tyres are most of the reason for both. If your constraint is "it lives in the garage next to the car and occasionally goes in the back of an SUV," none of that matters and it's a fine buy. If your constraint is a boot lip, a flight of stairs, a lift, or a closet, the RadExpand fails it — and it fails it while costing $600 more than the Lectric that folds 38% smaller.
The same applies in the other direction to the bike at the top of this table. The Brompton Electric C Line wins the constraint outright: 3.13 cubic feet, a 10.6-inch folded width, and a fold that's been iterated for decades. It's also $4,700, runs a 345 Wh battery and a 250W motor, and rides on 16-inch wheels. If you don't need to carry a bike onto a train or through an office lobby, you are paying roughly $2,900 over the Lectric for a constraint you don't have. Both of these bikes get recommended to the wrong people constantly, in opposite directions.
Methodology
We ranked on constraint satisfaction first and general quality second, using one metric we had to derive because no manufacturer publishes it and no ranking page computes it.
Folded volume — published folded length × width × height ÷ 1,728. Two caveats we'd rather state than bury. First, a folded bike does not fill its bounding box; true displacement is lower. The box is still the number that matters, because the box is what has to clear a boot opening or a doorway. Second, brands publish folded dimensions in different unit systems and different axis orders, so every figure here was converted to inches and re-ordered to length × width × height before multiplying.
Weight is taken as published, including the qualifiers. Brompton publishes "from 39.5 lb" because the figure is configuration-dependent. Urtopia publishes "29 lbs w/o acc." — and ships the bike with a rack and fenders, so the real-world number is higher. We reproduce both qualifiers rather than rounding them into a clean-looking table.
Energy density and payload were used as tie-breakers, not ranking axes. Watt-hours per pound runs from 7.6 (GOTRAX) to 11.8 (Lectric), and the pattern is the opposite of the intuitive one: the heaviest bikes here carry the most energy per pound, which is how we know the weight isn't coming from the cells.
Two bikes were cut on evidence grounds rather than merit. The Heybike Mars 2.5 ($899) ranks third organically for this query and is a genuinely competitive budget option, but Heybike publishes neither a weight nor a folded dimension for it, so it cannot be placed in a folded-volume ranking without us inventing the number. The Aventon Sinch 2.5 was cut because Aventon's own store shows it sold out at $1,799; the cheaper listings visible in shopping results are refurbished-marketplace resellers, not first-party stock. The Engwe Zip ranks at #14 and was dropped for a different reason — see below.
The GOTRAX E-Fold was kept and ranked last, specifically because GOTRAX publishes no folded dimensions for a bike it named the E-Fold. That is a real answer to the buyer's question, and burying it would have been the dishonest choice.
What We Checked
Nothing on this page was ridden, weighed, folded or measured by us. No independent lab data exists for folded volume in this category, and we're not going to imply otherwise. Every weight, dimension, battery, motor and range figure here is a manufacturer specification. What we did was verify those specifications are real, current, first-party and self-consistent — and then do arithmetic on them that the manufacturers haven't done.
Concretely, on 11 August 2026 we pulled the live product feeds from eleven brands' own stores plus Brompton's US storefront, and read every price from the first-party product page rather than from marketing copy or a shopping rail. We confirmed all eight product links return a live page under a browser user agent, confirmed all eight product images return a real image file from an official brand CDN, and opened four of them to look at them.
That process caught six things worth printing rather than smoothing over:
- Lectric's product feed served Canadian pricing. The catalog returned XP4 variants at $1,020 and $1,311 with handles suffixed
[CA]. Publishing those as US dollars would have been a material error. Every Lectric figure here was re-read from the US product page: $1,299, reduced from $1,664. - Engwe served euro pricing and EU-legal specifications — €1,099, a 250W motor and a 25 km/h limit — while its US subdomain returned a 404. A bike sold in the US as a 750W Class 2 machine cannot be described from an EU spec sheet, so we dropped it rather than mix markets.
- Blix lists the same bike twice at two prices. Its catalog carries "Blix Vika X Folding eBike" at $2,799 (unavailable) and "Vika X Folding eBike" at $1,799 (available). The live product page resolves to $1,799, which is what we used.
- Blix's motor rating conflicts with its own marketing. The Vika X spec table states 500W and 55 Nm; Blix's wider copy references 750W. We used the spec table and are telling you the discrepancy exists.
- Velotric doesn't publish a battery capacity anywhere we could reach, on either the product page or its own folding-bike comparison page. The 68-mile range claim therefore can't be sanity-checked against watt-hours, and we've left the cell blank instead of estimating it. Velotric's weight and folded dimensions did come from Velotric's own comparison page, because the product page's spec table is script-rendered and doesn't return in the page source.
- The Urtopia image file is named
blue44.pngand shows a yellow bike. Harmless, but it's the kind of thing that tells you how much of this category's published material is assembled quickly.
The picks in detail
1. Brompton Electric C Line — $4,700
Folded 3.13 ft³ (23 × 22.2 × 10.6 in) · from 39.5 lb · 345 Wh · 250 W · up to 56 mi
The reference point, and the only bike here that solves the hard version of the constraint. At 10.6 inches folded width it goes under a desk, into a luggage rack, through a turnstile and into a wardrobe. Nothing else on this page is within a factor of three of it, and the fold itself is a decades-old design that has been refined rather than reinvented. Brompton publishes the weight as a "from" figure because it varies by configuration; the battery-out weight is 31.4 lb.
- Best for: commuters whose fold has to board a train, enter an office, or live in a flat with no bike storage.
- Avoid if: the fold only ever has to reach a car boot or a garage corner. You are paying roughly $2,900 over the Lectric for portability you won't use — and accepting the smallest motor and second-smallest battery here to get it.
Check the Brompton Electric C Line at Brompton US — $4,700 listed, verified 11 August 2026.
2. Urtopia Carbon Fold 1 — $1,799 (reduced from $2,299)
Folded 9.20 ft³ (31 × 19 × 27 in) · 29 lb · 252 Wh · 250 W / 450 W peak, 42 Nm · 40 mi
If you searched "lightweight folding electric bike" and got a list of 60-pound bikes, this is the bike you were looking for. At 29 pounds it is 31.5 pounds under this guide's median and 10.5 pounds lighter than the Brompton, on a carbon frame and fork with an 18-inch wheel. Its range claim is also the most honest here: 40 miles, stated at ECO assist with a 180-pound rider, rather than an unqualified best case.
- Best for: anyone who has to lift the bike regularly — stairs, a car boot, a bike rack, a train vestibule.
- Avoid if: you're near the limit. The 220 lb total weight limit is the lowest here by 44 pounds, and it's a total, not a rider limit, so cargo counts. The 252 Wh battery and 42 Nm also make it the weakest climber on this page. Note the 29 lb figure excludes accessories, and the bike ships with a rack and fenders.
Check the Urtopia Carbon Fold 1 at Urtopia — $1,799 listed, reduced from $2,299, verified 11 August 2026.
3. Lectric XP4 750 Step-Thru Long-Range — $1,299 (reduced from $1,664)
Folded 10.56 ft³ (37 × 17 × 29 in) · 71 lb · 840 Wh · 750 W / 1310 W peak · up to 85 mi · 330 lb payload
The most capability per dollar here by a wide margin, and a genuinely surprising result on the constraint metric: it folds smaller than four bikes that weigh less than it does, largely on a 17-inch folded width that's the narrowest in the value tier. It carries the biggest battery on this page (840 Wh) at the best energy density (11.8 Wh/lb), ships with an integrated 150 lb rack, fenders, a 90-lumen headlight and a brake light, and switches between Class 1, 2 and 3 up to 28 mph. Lectric is also one of the only brands here that publishes its battery weight — 9 lb — which is why we can say with confidence that the battery is not why these bikes are heavy.
- Best for: the buyer whose constraint is storage volume and budget rather than lifting. Best overall value on this page.
- Avoid if: you have to pick it up. 71 pounds is the second-heaviest here and there is no lighter configuration of this bike. Treat the 85-mile figure as a best-case pedal-assist number.
Check the Lectric XP4 750 Step-Thru Long-Range at Lectric eBikes — $1,299 listed, reduced from $1,664, verified 11 August 2026.
4. Blix Vika X — $1,799
Folded 12.69 ft³ (36 × 21 × 29 in) · 61 lb · 614.4 Wh · 500 W, 55 Nm · up to 70 mi · 312 lb payload
The best-equipped bike here for riding in traffic after dark. It's the only pick with turn signals, and it pairs them with a high/low beam headlight (70/120 lux) and a brake light, plus a MIK-compatible rack that takes standard quick-mount bags. It ships Class 2 and unlocks to Class 3 (28 mph) in the app. The 20" × 2.4" tyres are a sensible middle ground between fat-tyre bulk and small-wheel harshness.
- Best for: commuters riding in mixed traffic and low light who want signalling built in rather than bolted on.
- Avoid if: you want published specs that agree with each other. The spec table says 500W; Blix's own wider copy says 750W. Blix also lists this bike twice in its catalog, at $2,799 and $1,799. Mid-pack on both fold and weight.
Check the Blix Vika X at Blix — $1,799 listed, verified 11 August 2026.
5. VTUVIA SF20H — $1,399 (reduced from $1,599)
Folded 12.86 ft³ (39.3 × 18.9 × 29.92 in) · 60 lb · 672 Wh · 750 W / 1200 W peak, 85 Nm · 70 mi PAS / 40 mi throttle · 330 lb payload
The strongest climber here on paper at 85 Nm, with a 16-inch standover that's the lowest step-thru on this page and a 330 lb payload matching the Lectric. It's also the only bike in this guide that publishes both a pedal-assist range and a throttle-only range — 70 miles and 40 miles — which is the single most useful piece of range honesty anyone on this list offers, because throttle riding is what actually drains these batteries. Named LG cells with UL2271 certification.
- Best for: heavier riders, hilly routes, and anyone who rides on the throttle and wants a number they can trust.
- Avoid if: fold size matters. The 20" × 4.0" fat tyres put it near the bottom of the volume ranking. Smaller brand, thinner service network than Rad or Lectric.
Check the VTUVIA SF20H at VTUVIA — $1,399 listed, reduced from $1,599, verified 11 August 2026.
6. Velotric Fold 1 Plus — $1,499
Folded 14.44 ft³ (37.8 × 19.7 × 33.5 in) · 62 lb · battery not published · 750 W, 75 Nm · 68 mi · 450 lb payload
The highest payload in this guide by 120 pounds — 450 lb — with 75 Nm of torque and hydraulic disc brakes at a mid-tier price. Velotric ranks on page one for this query, so it's a bike most buyers will encounter, and on paper it's competitive.
- Best for: carrying heavy loads, or a heavier rider plus cargo, on a mainstream brand.
- Avoid if: you want to audit the range claim. Velotric doesn't publish a battery capacity on the product page or its own comparison page, so there's no way to sanity-check 68 miles against watt-hours. Its 33.5-inch folded height is also the tallest here, which is what drags it down the volume ranking despite a middling footprint.
Check the Velotric Fold 1 Plus at Velotric — $1,499 listed, verified 11 August 2026.
7. Rad Power RadExpand 5 Plus — $1,899
Folded 17.20 ft³ (41 × 25 × 29 in) · 72.5 lb · 720 Wh · 750 W, 64 Nm · 20–60 mi · 315 lb payload
The safest ownership experience here. Rad Power has the deepest support, parts and dealer network in US e-bikes, and it's the only brand on this page that publishes a range band (20–60 miles) rather than a best-case single figure — a small thing that says a lot about how the specs were written. Full fenders, a 59 lb integrated rack, a brake light, and puncture-resistant tyre liners as standard.
- Best for: buyers who value serviceability and long-term parts availability over spec-sheet wins, and whose fold only has to reach a garage or an SUV.
- Avoid if: the fold has to fit anything tight. This is the heaviest bike and the largest folded box on this page, at $600 more than the Lectric for 1.63× the bulk and 120 Wh less battery. Its 225 lb rider limit is also lower than the Lectric's and VTUVIA's despite the higher price.
Check the RadExpand 5 Plus at Rad Power Bikes — $1,899 listed, verified 11 August 2026.
8. GOTRAX E-Fold — $529 (reduced from $699)
Folded volume not published · 49 lb · 374.4 Wh · 350 W · up to 40 mi · 264 lb payload
Less than half the price of anything else here, and at 49 pounds it's the third-lightest bike in the guide. The 20" × 2.6" tyres are a reasonable middle ground, and it ships with a rear cargo rack. As a first e-bike on a tight budget it's a real option, and we'd rather include it honestly than pretend the sub-$600 tier doesn't exist.
- Best for: the lowest genuine entry price into a folding e-bike, from a brand with actual US distribution.
- Avoid if: you need to know how big it is folded before you buy it. GOTRAX publishes no folded dimensions — and no unfolded dimensions either — for a product it named the E-Fold. We checked the product page twice. It's also the weakest drivetrain here (350W, 374.4 Wh) and the lowest energy density at 7.6 Wh/lb.
Check the GOTRAX E-Fold at GOTRAX — $529 listed, reduced from $699, verified 11 August 2026.
Buying Guide
Measure the space before you shortlist. All three dimensions, in inches, including the opening you have to get through. A boot's published cargo volume is close to useless here because the aperture, not the volume, is what stops a folded bike. Then filter this table by the tightest of your three numbers.
Decide honestly whether you will lift it. This is the single question that splits this list in two. If the answer is yes — stairs, a rack, a boot lip, a train — you are shopping in a three-bike market (Urtopia at 29 lb, Brompton at 39.5 lb, GOTRAX at 49 lb) and everything else is out regardless of how good it is. If the answer is no, weight barely matters and you should optimise for battery, payload and support instead, which is where the Lectric wins on value and the RadExpand wins on service.
Match the battery to your actual round trip, not the headline range. Every claimed range on this page is a best case at low assist, except VTUVIA's throttle figure and Rad's range band. A workable rule: assume roughly half the headline number if you ride on high assist or throttle, and check that against your real commute both ways. Where watt-hours are published, they're the more honest comparison — 840 Wh (Lectric) versus 252 Wh (Urtopia) tells you more than 85 miles versus 40 miles does.
Check the payload against your real load. Payload is rider plus cargo plus the rack's contents. The spread here is enormous: 220 lb on the Urtopia, 450 lb on the Velotric. This is the spec most likely to quietly rule out a bike you'd otherwise have bought.
Know your class before you buy. Class 1 is pedal-assist to 20 mph, Class 2 adds a throttle to 20 mph, Class 3 is pedal-assist to 28 mph. Several bikes here ship in one class and unlock to another. Local rules on where each class may ride vary by state and by path, so check your own before you rely on a 28 mph mode.
Budget for the rest of the setup. Most of these ship with a rack, fenders and basic lights, which is a genuine saving. What they don't include is a lock adequate for a bike worth $1,300–$4,700, and if you're riding in the dark you'll likely want more light than a 50-lumen headlight — our bike lights guide covers what actually works on unlit roads, and the helmet guide is worth reading if this is your first bike in a while.
Common mistakes to avoid
- Reading "folding" as "portable." They are different properties. The fold changes shape; it does nothing to the 60.5 lb median weight. Decide which one you actually need before you shortlist.
- Trusting "compact" instead of multiplying. Three brands on this page call bikes compact that fold to over 12.5 cubic feet. Do the multiplication yourself, or use the column above.
- Assuming a smaller battery means a lighter bike. The battery is around 12.7% of the weight on the one bike here that publishes the figure. You'd give up most of your range to save six pounds.
- Buying on headline range. It's measured at the lowest assist level. If you ride on throttle, look at VTUVIA's honesty — 70 miles becomes 40.
- Ignoring the payload line. A 220 lb total limit is not the same as a 220 lb rider limit, and cargo, rack contents and a heavy lock all count against it.
- Paying more and getting more bulk. Inside the value tier, price and folded size are inversely related on this page. The most expensive value-tier pick folds the biggest.
- Skipping brands that won't publish the number. If a manufacturer won't tell you how big its folding bike is folded, that's information about the manufacturer, not just about the bike.
FAQs
The questions below are taken from the People Also Ask block and the Reddit and Electric Bike Review forum threads that rank on page one for this query — which is to say, they're what buyers are actually asking rather than what's convenient to answer.
Related reading
- Best bike lights for road cycling — what a commuter actually needs after dark, since a 50-lumen stock headlight isn't it
- Best bike helmets for beginners — if this is your first bike in years
- Best bike computers for road cycling — navigation and tracking that works on an e-bike commute
- Best smart trainers for Zwift — the other high-ticket cycling purchase worth getting right
- All cycling guides
Common questions
Frequently asked questions
- Are folding electric bikes worth it?
- Only if you have a genuine space or transport constraint. The fold costs you money, weight and usually wheel size compared with a conventional e-bike at the same price. If the bike will live in a garage with room to spare, a non-folding model gives you more bike per dollar. If it has to fit a boot, a closet, a lift or a train, the fold is the whole point and nothing else substitutes for it.
- Can you carry a folding electric bike up stairs?
- Usually not comfortably. The median weight across the eight bikes in this guide is 60.5 lb, and only three weigh under 50 lb — the Urtopia Carbon Fold 1 at 29 lb, the Brompton Electric C Line from 39.5 lb, and the GOTRAX E-Fold at 49 lb. Folding changes the shape, not the mass. If stairs are part of your routine, weight is your real filter and most of this category is out.
- Why don't some brands publish folded dimensions?
- There's no requirement to, and a large folded size is not a good selling point. GOTRAX publishes neither folded nor unfolded dimensions for a bike it named the E-Fold, and Heybike publishes neither a weight nor folded dimensions for the Mars 2.5. Treat a missing folded dimension as a data point about the product: if it folded impressively small, the number would be in the marketing.
- Is a 250W motor enough for a folding e-bike?
- For flat urban riding, yes — the Brompton Electric C Line and Urtopia Carbon Fold 1 both use 250W motors and both are pleasant city bikes. On sustained hills or with cargo it's marginal, and torque matters more than watts: the Urtopia makes 42 Nm against 85 Nm on the VTUVIA SF20H. If your route has real climbs, shop torque rather than motor wattage.
- How much of a folding e-bike's weight is the battery?
- Less than most people assume. Lectric publishes its 840 Wh pack at 9 lb on a 71 lb bike — about 12.7% of the total. Remove the battery from every bike in this guide and the lightest is still 29 lb and the heaviest is still 62.5 lb. The weight is in the frame, the fat tyres and the hub motor, so choosing a smaller battery costs you range without meaningfully lightening the bike.
- Do I need a Class 3 e-bike or a throttle?
- A throttle is genuinely useful for pulling away at junctions and on steep starts, and Class 2 covers it at up to 20 mph. Class 3 pedal-assist to 28 mph mainly helps on longer road commutes. Several bikes here ship in one class and unlock to another in an app. Where each class is allowed to ride varies by state and by path type, so check your local rules before relying on a 28 mph mode.
- What does the fold cost you in ride quality?
- Smaller wheels and a hinged frame. Sixteen- to twenty-inch wheels drop into potholes that a 700c wheel rolls over, and every hinge is a stiffness compromise you feel when you push hard on the bars. Fat 20-inch tyres, as on the RadExpand 5 Plus and VTUVIA SF20H, buy some of that comfort back at the cost of folded bulk and rolling efficiency — which is the trade at the heart of this whole category.
- How accurate are the claimed range figures?
- Treat them as best cases measured at the lowest assist level. Only two bikes here are more honest than that: VTUVIA publishes both a 70-mile pedal-assist figure and a 40-mile throttle-only figure, and Rad Power publishes a 20–60 mile band rather than a single number. A reasonable planning assumption is roughly half the headline figure if you ride on high assist or throttle.
References
Sources
- Brompton US — Electric C Line (price, weight, folded dimensions, battery)
- Urtopia — Carbon Fold 1 E-Bike product page and spec table
- Lectric eBikes — XP4 750 Step-Thru Long-Range product page and spec table
- Blix — Vika X Folding eBike product page and spec table
- VTUVIA — SF20H Folding Ebike product page and spec table
- Velotric — Fold 1 Plus product page
- Velotric — folding e-bike comparison page (weight, folded dimensions, payload)
- Rad Power Bikes — RadExpand 5 Plus product page and spec table
- GOTRAX — E-Fold Electric Bike product page
- Heybike — Mars 2.5 product page (evaluated, cut for missing weight and folded dimensions)
- Aventon — Sinch 2.5 product page (evaluated, cut as sold out at first-party retail)
Keep reading
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