MapFour Roam ST
Step-through full-suspension trekking e-bike with a 100 Nm mid-drive motor and carbon belt drive
| Range: 150 km |
| Battery: 720 Wh |
| Weight: 33 kg |
| Wheel Size: 27.5" |
| Max Load: 120 kg |
| Foldable: No |
| Motor: 250W |
| Max Speed: 25 km/h |
| Bike brand: MapFour |
Frequently Bought Together
3 year warranty
Free
Delivery protection
Free
Front frame bag
30,00 €
Folding bike lock — 95 cm
39,00 €
MapFour
The premium brand created by ENGWE: full-suspension trekking e-bikes with RideGuard™ smart protection.
Tags |
MapFour Roam ST
A new generation of trekking comfort with an easy step-through frame: full suspension, RideGuard™ smart protection and up to 150 km per charge.
French Design Award 2025 winner (Product Design, Transport) · MapFour, the premium brand created by ENGWE
150 km
max. range (Eco mode)
100 Nm
max. torque (mid-drive motor)
720 Wh
LG battery, 36 V 20 Ah
8 A
fast charger included
100 / 60 mm
front fork / rear suspension
19"
step-through frame · 160-180 cm
Built for enjoying every kilometre
The Roam ST is the step-through version of the Roam: the same full-suspension trekking e-bike, with a low frame you get on and off without swinging your leg over the saddle, which helps in town, at frequent stops and with a loaded rear rack.
It soaks up rough ground and stays composed when the surface changes, with a 19" frame designed for riders from 160 to 180 cm.
Tarmac, cycle lanes, gravel tracks or forest paths: one bike for commuting during the week and touring at the weekend.
The Roam on video
An independent review, the first look at Eurobike 2026 and how to unbox and assemble it.
Review
Martijn Wester · in English
First look at Eurobike 2026
MapFour · in English
Unboxing and assembly of the Roam ST
MapFour · in English
Two frames, the same Roam
The Roam and Roam ST share the motor, battery, suspension, drivetrain and equipment. Choose by your height and how you prefer to get on and off the bike.
Roam ST · step-through frame
19" low-step frame for riders from 160 to 180 cm: you get on and off without swinging your leg over the saddle. Weight: 33 kg.
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Roam · step-over frame
20" frame for riders from 165 to 185 cm. Weight: 34 kg.
Both frames are made in Space Grey and Midnight Blue; ask us about the availability of each colour.
Full suspension, built for trekking
Most trekking e-bikes are hardtails. The Roam ST pairs a 100 mm hydraulic fork with a 60 mm four-link rear suspension, tuned for long-distance riding: less vibration, more grip and a steady, predictable ride when tarmac gives way to gravel.
Aluminium alloy frame
100 mm hydraulic front fork
60 mm four-link rear suspension, DNM shock with adjustable rebound
Tuned over long rides, not just short test loops
MapFour developed the suspension as a complete system, based on field testing and on how vibration and impacts build up over hours of riding. It is matched to the trekking geometry to absorb repeated knocks, reduce fatigue and help you keep your rhythm.
RideGuard™: tracking, locking and navigation from your phone
RideGuard is MapFour’s smart protection system. It brings anti-theft protection, on-screen navigation and locking from your phone together in the MapFour app, so owning a premium e-bike is simpler and safer.
Works with the MapFour app (iOS and Android). Connected features such as GPS tracking, 24/7 monitoring, alerts and geofencing may require a subscription after a free period: we will confirm the current terms before you buy.
Less worry about theft
24/7 monitoring, motion alerts, geofencing and GPS tracking: you know where your Roam ST is and whether someone moves it.
Stay on route
Plan the ride in the app and send the navigation to the bike’s display: directions stay in view, with no need to check your phone.
Your phone is the key
Lock or unlock the bike’s electronics from the app in a second, with no keys to carry. For street parking, add a good physical lock.
Low-maintenance drivetrain
Chain-driven trekking bikes need regular cleaning, lubrication and adjustment. The Roam ST uses a Michelin carbon belt with a Shimano Nexus 5-speed internal hub instead: a cleaner, quieter drivetrain that stays consistent kilometre after kilometre.
Michelin carbon belt
No grease and no constant adjustment: it won’t stain your clothes and needs very little maintenance.
Shimano Nexus 5 hub
A sealed internal gear hub instead of a derailleur: dependable shifting, even when stopped, and better protection from dirt and knocks.
Fast charging with the 8 A charger
With the included 8 A fast charger and smart battery management (BMS), the Roam ST recharges much faster than with a conventional charger: a longer stop, such as lunch, puts a good share of the charge back.
Up to 150 km of range
The 720 Wh LG battery (36 V, 20 Ah) delivers up to 150 km per charge in Eco mode (manufacturer figure), with consistent power in town, on forest tracks and on multi-day tours. Real-world range depends on rider weight, elevation, temperature and assist level.
100 Nm for confident climbing
The Mivice X700 mid-drive motor (250 W rated power) delivers up to 100 Nm and meters assistance through a torque sensor: smooth at low speed and confident when you carry a load, on steep hills, forest tracks and long tours.
Fully equipped from day one
Full mudguards, a trekking rear rack, integrated lights with a 30 lux front lamp and a bottle mount, all included as standard: you only need to add your panniers.
Every detail matters
Tektro hydraulic disc brakes
Strong, consistent braking in town, on descents and on mixed terrain, with 180 mm rotors.
3.5" centre display
Speed, range, assist level and ride data, clear at a glance.
27.5" puncture-resistant tyres
Kenda 27.5 × 2.35 inch with a puncture-protection layer: grip on tarmac and gravel.
Wide comfort saddle
Designed to relieve pressure on long days in the saddle.
Precise torque sensor
Assistance responds instantly to how hard you pedal, for a natural, efficient ride.
What’s in the box?
| MapFour Roam ST e-bike | ×1 |
| Battery 36 V, 20 Ah, 720 Wh (21700 cells with BMS) | ×1 |
| Charger 42 V / 8 A | ×1 |
| Pedals | ×2 |
| Front and rear mudguards | ×1 |
| Kickstand | ×1 |
| Belt guard | ×1 |
| Assembly tool | ×1 |
| User manual | ×1 |
You receive the frame and colour you choose when ordering.
Buy with peace of mind from ENGWE Spain
Official 3-year warranty
At our service centres in Spain: we handle it ourselves as the seller, from Valencia and Barcelona.
Free shipping
To mainland Spain and the Balearic Islands on orders of €500 or more.
Collect in store
Free with the bike boxed, in Valencia or Barcelona; assembled and set up, €50 (VAT included).
30 days to return it
30 calendar days from delivery, with no need to give a reason; return shipping is paid by the buyer unless the product is faulty or we made an error. Return policy
MapFour Roam ST: frequently asked questions
What rider height is the MapFour Roam ST for?
Riders from 160 to 180 cm (19" step-through frame). Between 165 and 180 cm both versions fit: choose the ST if you prefer to get on and off without swinging a leg over the saddle.
What is the difference between the Roam and the Roam ST?
Only the frame. The Roam has a 20" step-over frame for riders from 165 to 185 cm; the Roam ST has a 19" step-through frame for 160 to 180 cm that is easier to get on and off. Motor, battery, suspension, drivetrain and equipment are identical.
Is the MapFour Roam ST street-legal in Spain?
Yes. It is a pedal-assisted bicycle: 250 W rated continuous power and assistance only while you pedal, reduced and cut off before 25 km/h; it is certified to EN 15194 by TÜV, according to the manufacturer. Legally it is a bicycle: no licence, number plate, roadworthiness test or compulsory insurance. More in our guide to e-bike rules in Spain.
How far does the MapFour Roam ST go and how long does it take to charge?
Up to 150 km in Eco mode with the 720 Wh LG battery (manufacturer figure); real range depends on weight, elevation, temperature and assist level. With the included 8 A fast charger, a full 0–100 % charge takes about 2.5–3 hours.
What maintenance does the Roam ST’s carbon belt need?
Far less than a chain: it needs no lubrication and does not rust. Keep it clean and have its tension checked at routine services, which we carry out at our workshops in Valencia and Barcelona.
How does RideGuard work on the MapFour Roam ST?
Through the MapFour app: motion and geofence alerts, GPS location, electronic locking from your phone and navigation sent to the bike’s display. Connected features may require a subscription after a free period; we confirm the current terms before purchase. For street parking, add a good physical lock.
What data does the MapFour Roam ST generate and how can I access it?
The Roam ST is a connected e-bike: in use it generates operating, connectivity and related-service data (vehicle status, mileage, ride records, device information, and the settings, pairing actions, feedback and community interactions you make in the app). Some of it is used for vehicle management, ride history, diagnostics and after-sales support. Data categories, purposes, how to access, export or delete the data and how to authorise third parties are set out on MapFour’s EU Data Act page and in the MapFour app.
What warranty does the MapFour Roam ST have?
A three-year legal guarantee from delivery (ENGWE Spain guarantee), handled by us as the seller from our stores in Valencia and Barcelona. On top of that, our commercial warranty varies by component: see the table in our Terms and Conditions (§7.2).
Can I see and try the MapFour Roam ST before buying?
Yes, at our stores in Valencia (Guadalaviar 2, +34 960 730 787) and Barcelona (Carrer del Parlament 13, +34 936 940 449). Call or message us first to check which units we have.
How is the MapFour Roam ST shipped?
If in stock, we ship it in 1–2 working days from our warehouse in Spain, free to mainland Spain and the Balearic Islands on orders of €500 or more. You can also collect it free of charge boxed in Valencia or Barcelona, or assembled and set up for €50 (VAT included).
Try it for yourself
Comfort is something you feel. Ask us about availability and come and try the Roam ST at our stores in Valencia or Barcelona.
| General | |
| Model | MapFour Roam ST (step-through frame) |
| Frame size | 19" |
| Rider height | 160–180 cm |
| Weight | 33 kg |
| Max. payload | 120 kg (rider + luggage) |
| Max. assisted speed | 25 km/h |
| Range | Up to 150 km (Eco mode, manufacturer figure) |
| Assist modes | Off · Eco · Tour · Auto · Sport · Turbo |
| Terrain | Tarmac, cycle paths, paved and unpaved trails, rougher unpaved ground |
| Foldable | No |
| Water resistance | IPX5 |
| Certification | CE EN 15194 (TÜV); battery tested to EN 50604 (manufacturer data) |
| Electrical system | |
| Motor | Mivice X700 mid-drive, 36 V, 250 W rated continuous power |
| Max. torque | 100 Nm |
| Assist sensor | Torque sensor |
| Battery | 36 V 20 Ah (720 Wh), LG 21700 cells with BMS |
| Charger | 42 V 8 A (fast charger) |
| Display | 3.5" TFT, centre-mounted |
| App | MapFour app with RideGuard™: GPS, alerts, electronic lock, navigation (connected features subject to service terms) |
| Front light | 30 lux, K-marked (German StVZO) |
| Rear light | K-marked |
| Components | |
| Frame | Aluminium alloy, full suspension |
| Fork | Zoom hydraulic aluminium fork, 100 mm travel |
| Rear suspension | Four-link, 60 mm; DNM shock with adjustable rebound |
| Tyres | Kenda 27.5 × 2.35" with puncture-protection layer |
| Brakes | Tektro HD-R280 hydraulic discs; 180 mm rotors front and rear |
| Drive | Michelin carbon belt, 128 teeth; 44-tooth front sprocket |
| Gears | Shimano Nexus 5-speed internal hub (SG-C7000-5D), SL-C7000-5 shifter |
| Cranks | 170 mm |
| Pedals | Non-folding |
| Saddle | Trekking saddle |
| Seatpost | 250 mm, quick-release clamp |
| Handlebar | 680 mm wide |
| Equipment | |
| Rear rack | Included |
| Mudguards | Front and rear, included |
| Kickstand | Included |
| Belt guard | Included |
| Lights | Integrated front and rear |
| Bottle mount | Yes |
| Packaging | |
| Box dimensions | 154.5 × 23 × 79 cm |
| Packaged weight | 42 kg |
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