isinwheel S9Max Electric Scooter for Adults
SKU: H89484In Stock
SPEED21.7 Mph
RANGE22 Miles
MOTOR500W
BATTERY10Ah
WEIGHT34 lbs
Adjustable Cycle Helmet£38.99
Front and Rear Light Set£44.99
Private Land Use Only.
Not for public roads, pavements or cycle paths. Scooter rules differ by country, and most models in this range exceed what road use allows, which makes them motor vehicles needing type approval, registration and insurance. Check the rules where you ride before you buy.
See UK LegislationThis one carries 360 Wh of battery. The maker quotes 22 mi; in mixed riding with some hills, expect nearer 17 mi. A full charge costs about £0.10. Across a year that is roughly £980.00 less than making the same journeys by car, so the bike pays for itself in about 6 months. Everything here is worked out from this bike's own specification. Estimates, not promises: the assumptions are printed underneath.
Range you can expect
| Low assist, flat roads | 22 mi |
|---|---|
| Mixed riding, some hills | 17 mi |
| Full assist, loaded or hilly | 12 mi |
| Riding time on a charge | 1 h 1 min |
What it costs to run
| A full charge | £0.10 |
|---|---|
| Every 100 miles | £0.46 |
| Electricity for a year | £10.00 |
| The same year by car | £990.00 |
| You keep | £980.00 |
| Pays for itself in | 6 months |
Worked out from the specification
| Battery energy | 360 Wh |
|---|---|
| Energy per mile | 16.4 Wh |
| Power to weight | 32.4 W/kg |
Based on £0.245 per kWh, £0.45 per mile to run a small car, and 2,200 miles a year. Charging is costed at the socket, not at the battery.
Thirty four pounds, honeycomb tyres, and nothing to maintain
The isinwheel S9Max weighs 34 lbs, which puts it in the lightest one per cent of our catalogue, and runs honeycomb solid tyres that never need inflating, at £489.
It unlocks to 21.7 mph through the app and is not an electrically assisted pedal cycle, so we sell it for private use on private land. Please read the panel above before you order.
Where you can and cannot ride it
A privately owned electric scooter cannot legally be used on a public road, pavement or cycle path in the UK, at any power.
This one is sold for your own property, or land where the owner has given you permission.
Thirty four pounds is the argument
Fifteen and a half kilograms, which puts it in the lightest one per cent of our catalogue.
- One hand to lift it into a boot
- Carried up a flight of stairs without thinking about it
- Folded to 113 by 43 by 54 centimetres
- Which means it actually gets taken places rather than left
Honeycomb tyres, which are neither solid nor pneumatic
A solid tyre with a honeycomb structure moulded through it: air pockets in a shape that gives some cushioning without any pressure to hold.
They cannot puncture, they never need a pump, and they do not go soft in the shed over winter. They are firmer than an air tyre, and that is the honest trade.
On a machine used around a yard or a site, never having a flat is worth more than the last bit of comfort.
Two speed modes, and a third behind the app
Fifteen and twenty five kilometres an hour as delivered, with thirty five unlocked through the isinwheel app.
The unlock is deliberate rather than accidental, which is the right arrangement on a machine this light.
Suspension at both ends anyway
A front fork and rear dual spring suspension, which on a solid tyred scooter matters more rather than less.
With no air in the tyres to absorb an edge, the suspension is doing all of that work. Built-in mudguards as well, which most scooters leave off.
An electronic brake and a rear disc
EBAS electronic braking plus a mechanical disc at the rear.
The electronic brake takes the everyday slowing and wears nothing. There is no front disc, which at 21 mph works but means leaving more room than you would on a machine with brakes at both ends.
Who it fits
isinwheel size it for riders between 140 cm and 200 cm, which is a very wide range, with IP54 water resistance.
They are also specific about what IP54 means here: puddles and rain, provided the water is not above the deck. That is a maker telling you where the limit is rather than implying there is not one.
Before the first ride
It arrives folded.
- Check every fastener on the stem and the folding latch before the first ride, and again after the first hour
- Bed the rear disc in at walking pace and learn its stopping distance
- Leave it in the delivered speed modes until it is familiar
- There is no tyre pressure to set, which is the point
- Charge to full before the first ride
The load rating is not published, and who it is for
isinwheel do not state a maximum load for this model, so the table below leaves that row out rather than inventing one. Ask us and we will chase it.
Buy it if you want a machine that asks nothing of you: nothing to inflate, nothing to puncture, and light enough that carrying it is never the reason you leave it behind.
- BRAND
- isinwheel
- CATEGORY
- Folding
- MOTOR POWER
- 500W
- RANGE
- 22 Miles
- SPEED
- 21.7 Mph
- BATTERY
- 10Ah
- WEIGHT
- 34 lbs
- CHARGING TIME
- N/A
- BRAKE SYSTEM
- EBAS electronic brake + rear disc brake
- FRAME MATERIAL
- Aluminum
- MAXIMUM LOAD
- N/A
- INPUT VOLTAGE
- 36V
- TIRE SIZE
- 10 inch
- TORQUE
- N/A
The isinwheel S9Max Electric Scooter for Adults states 500W, 22 Miles and 21.7 Mph, and below it is set against the Ienyrid M8 Pro Electric Scooter. Every figure the two disagree on is marked. Choose a different bike to compare it with whichever one you are also considering.
9 of 11 specifications differ. View Ienyrid M8 Pro Electric Scooter
- What is the maximum speed of the iSinwheel S9Max?
- The S9Max reaches 21 mph (22 mph) when unlocked through the mobile app, where permitted by local regulations.
- How far can the S9Max travel on one charge?
- The scooter offers a maximum riding range of up to 22 miles (22 miles) under ideal conditions. Actual range varies depending on terrain, rider weight, and riding style.
- Do the honeycomb tires require maintenance?
- No. The 10-inch honeycomb solid tires are puncture-resistant and do not require inflation, reducing routine maintenance.
- Does the iSinwheel S9Max support a mobile app?
- Yes. It supports the iSinwheel app, allowing you to adjust scooter settings, monitor ride information, and unlock additional features directly from your smartphone.
- Are the electric bikes brand new?
- Yes. All electric bikes sold by BikTron are brand new, factory-sealed, and sourced directly from authorised manufacturers and official distributors.
- How do I choose the right electric bike for me?
- Pick a bike based on how you plan to ride. City bikes are great for commuting, folding bikes work well if you need compact storage, mountain bikes handle hills and mixed terrain, and cargo bikes are ideal for carrying shopping or loads. If you are not sure, our Bike Quiz can help.
- Are the batteries original and certified?
- Yes. Every electric bike battery is brand new and original from the manufacturer, with full safety certification and performance testing.
- Are the bikes tested before shipping?
- Yes. Each e-bike goes through a quality check before dispatch, covering electronics, brakes, motor response, and battery performance.
- Do electric bikes come with a warranty?
- Yes. All electric bikes from BikTron include a manufacturer warranty. Duration depends on the brand and model. Most bikes include a 12-month warranty as standard.
- How long does delivery take?
- Standard UK delivery usually takes 2 to 7 business days. Remote areas may take a little longer. You will receive a tracking link by email once your order is dispatched.
- Which payment methods do you accept?
- We accept Visa, Mastercard, PayPal, Apple Pay, Google Pay, and Klarna buy-now-pay-later. All payments are processed securely.
- Can I return my electric bike?
- Yes. You can ride the bike and still return it. Tell us within 30 days of delivery and we book the courier and collect it from your door. Contact us first and we will guide you through the process.
- Do the bikes need assembly?
- Most electric bikes arrive 85 to 90 per cent pre-assembled. You will usually need to attach the handlebars, pedals, and adjust the seat. A basic tool set is often included.
- Are BikTron electric bikes legal to ride in the UK?
- Yes. All bikes sold by BikTron that meet UK EAPC rules (250W motor, max 15.5 mph assisted speed, pedal-assisted only) are fully road-legal. You do not need a licence, tax, or insurance to ride them on public roads. Riders must be at least 14 years old.
- What about the electric scooters?
- Those are different, and the law treats them differently. A privately owned e-scooter cannot legally be ridden on a public road, pavement or cycle lane in the UK, whoever sold it. We sell ours for private land use only, with the landowner's permission, and every scooter product page says so. If you want something you can ride to work, choose an electric bike.
Secure checkout and fast UK delivery on every order.
- Free standard UK delivery on most bikes — 2 to 7 business days
- Express delivery may be available on request
- Full tracking included with every order
- Pay securely with Visa, Mastercard, PayPal, Apple Pay, Google Pay, or Klarna
- 0% finance available through Klarna at checkout
Before you order:
- Delivery is to UK mainland addresses — some remote areas may have a small surcharge
- Most bikes arrive 85–90% pre-assembled and include basic tools for setup
- If you are unsure about sizing or specs, contact us before you buy
Full details at Payment & Shipping.
Simple and fair terms so you can buy with confidence.
- 30-day return window — if the bike is not right for you, send it back
- Ride it. It needs to come back clean, undamaged and complete, with the charger, tools and manual
- A refund or replacement is issued after we receive and check the return
Please note:
- For a change of mind we book the collection and deduct its cost from your refund, and we tell you the amount before we book it
- If we sent the wrong item or it arrived faulty, we cover return shipping in full
- All bikes include a 12-month manufacturer warranty as standard
Full details at Returns & Refunds and Warranty.
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