MapFour Roam ST Step-Through Electric Bike
The MapFour Roam ST combines step-through access with full suspension, a Mivice mid-drive and a carbon belt drivetrain. It suits riders planning comfortable commuting and longer leisure routes with easier mounting along the way. All the makings of a pleasant day in the saddle, with fewer acrobatics at the coffee stop.
Why choose this e-bike?
- A low-access frame makes mounting and dismounting easier.
- 100 Nm mid-drive assistance responds through a torque sensor.
- Full suspension and a belt-driven Nexus hub suit comfort-focused trekking.
The Lifty take
Choose the ST if step-through access is a priority. Its 19-inch frame has a manufacturer fit guide of 160–180 cm, but rider proportions matter too. At 33 kg, it remains a substantial, non-folding bike.
Specifications
| Motor | 36 V Mivice X700 mid-drive; 250 W rated continuous power |
|---|---|
| Torque / sensor | 100 Nm; torque sensor |
| Battery | 36 V 20 Ah (720 Wh), LG 21700 cells |
| Manufacturer range | Up to 150 km in Eco pedal-assist mode |
| Assist speed | 25 km/h |
| Charger | 42 V 8 A |
| Frame | 19-inch aluminium step-through frame |
| Suspension | 100 mm Zoom front fork; 60 mm DNM rear shock |
| Tyres | Kenda 27.5 × 2.35 inches |
| Drivetrain | Michelin carbon belt; Shimano Nexus 5-speed internal hub |
| Brakes | Tektro HD-R280 hydraulic discs; 180 mm rotors |
| Bike weight / max load | 33 kg / 120 kg |
| Manufacturer rider-height guide | 160–180 cm; confirm individual fit |
Range figures are supplied by the manufacturer and are not guaranteed. Rider weight, cargo, hills, wind, temperature, tyre pressure and assistance level affect distance per charge.
Quick questions
What does ST mean?
ST identifies the step-through version, with a lower frame opening for easier access.
Does Roam ST have rear suspension?
Yes. The manufacturer lists a 60 mm DNM rear shock alongside the 100 mm front fork.
How does it differ from Roam?
Roam ST has a 19-inch step-through frame and weighs 33 kg. Roam has a 20-inch step-over frame and weighs 34 kg. The core drive system is shared.
Choose your ride with Lifty
Select your listed colour and check its price and availability before ordering. Need help with fit or comparing models? Ask Lifty or compare our electric bikes.
Free delivery within Ireland is available only when a single order exceeds €4,000. Delivery charges apply to orders of €4,000 or less; the final charge is shown at checkout.
01 WHAT THIS PRODUCT IS & ROAD RULES
MapFour Roam ST Step-Through Electric Bike
MapFour Roam ST Step-Through Electric Bike
The MapFour Roam ST combines step-through access with full suspension, a Mivice mid-drive and a carbon belt drivetrain. It suits riders planning comfortable commuting and longer leisure routes with easier mounting along the way. All the makings of a pleasant day in the saddle, with fewer acrobatics at the coffee stop.
Why choose this e-bike?
- A low-access frame makes mounting and dismounting easier.
- 100 Nm mid-drive assistance responds through a torque sensor.
- Full suspension and a belt-driven Nexus hub suit comfort-focused trekking.
The Lifty take
Choose the ST if step-through access is a priority. Its 19-inch frame has a manufacturer fit guide of 160–180 cm, but rider proportions matter too. At 33 kg, it remains a substantial, non-folding bike.
Specifications
| Motor | 36 V Mivice X700 mid-drive; 250 W rated continuous power |
|---|---|
| Torque / sensor | 100 Nm; torque sensor |
| Battery | 36 V 20 Ah (720 Wh), LG 21700 cells |
| Manufacturer range | Up to 150 km in Eco pedal-assist mode |
| Assist speed | 25 km/h |
| Charger | 42 V 8 A |
| Frame | 19-inch aluminium step-through frame |
| Suspension | 100 mm Zoom front fork; 60 mm DNM rear shock |
| Tyres | Kenda 27.5 × 2.35 inches |
| Drivetrain | Michelin carbon belt; Shimano Nexus 5-speed internal hub |
| Brakes | Tektro HD-R280 hydraulic discs; 180 mm rotors |
| Bike weight / max load | 33 kg / 120 kg |
| Manufacturer rider-height guide | 160–180 cm; confirm individual fit |
Range figures are supplied by the manufacturer and are not guaranteed. Rider weight, cargo, hills, wind, temperature, tyre pressure and assistance level affect distance per charge.
Quick questions
What does ST mean?
ST identifies the step-through version, with a lower frame opening for easier access.
Does Roam ST have rear suspension?
Yes. The manufacturer lists a 60 mm DNM rear shock alongside the 100 mm front fork.
How does it differ from Roam?
Roam ST has a 19-inch step-through frame and weighs 33 kg. Roam has a 20-inch step-over frame and weighs 34 kg. The core drive system is shared.
Choose your ride with Lifty
Select your listed colour and check its price and availability before ordering. Need help with fit or comparing models? Ask Lifty or compare our electric bikes.
Free delivery within Ireland is available only when a single order exceeds €4,000. Delivery charges apply to orders of €4,000 or less; the final charge is shown at checkout.
100% ROAD LEGAL PEDELEC E-BIKE
Compliant with EN 15194 EPAC standard (250W assist up to 25 km/h). Legal on all Irish roads, bus lanes, and cycle lanes with no tax or licence needed. Eligible for Bike to Work savings up to €1,500 (0% employer transfer fee).
02 KEY SPECIFICATIONS & NUMBERS
01 MOTOR WATTAGE & POWERTRAIN (250W EPAC) 250W EN 15194 EPAC Compliant Motor
Strict 250W continuous nominal power rating compliant with EN 15194 European and Irish EPAC regulations. Electric motor assistance disengages automatically at 25 km/h. Fitted with sensitive pedalling cadence or bilateral torque sensors for smooth, natural power assist without sudden jerking.
100% legal on all cycle lanes, bus corridors, and streets across Dublin and Ireland. Zero road tax, zero registration, and no driving licence required.
02 HILL-CLIMBING TORQUE (NM) 55 Nm (Commuter Hill Assist)
Torque describes motor turning force. Hill-climbing performance also depends on motor design, assistance settings, gradient, gearing, total load and rider input.
Compare the model-specific torque information with your route and total load. A torque figure alone does not guarantee performance on a particular hill or at a junction.
03 BATTERY PACK & CELLS (V, AH, WH) 36V 14Ah (504Wh) Removable High-Capacity Lithium-ion
Battery protection features and certifications are model-specific. Check the documentation for the exact battery system; voltage and capacity alone do not establish safety certification.
Battery removal and charging arrangements vary by model. Check the exact model specification and owner manual before purchase.
04 RANGE BENCHMARKS (ECO VS DUBLIN COMMUTE) 75–110 km (Eco) / 50–70 km (Dublin)
Tested on flat tarmac with a 65 kg rider, minimal wind resistance, continuous gentle pedalling, and warm ambient temperature.
Verified for Irish conditions: coastal headwinds across Dublin Bay, frequent traffic light stops, winter temperatures (4–8°C), and normal luggage.
05 CHARGING SYSTEM & DURATION 4.5–5.5 Hours (Certified 2A / 3A Smart Charger, Auto Cut-Off)
Regulated CC/CV smart charger with auto-shutoff once full capacity is achieved. Protects cell chemistry and maintains pack longevity over hundreds of charge cycles.
Plug in under your desk at work or overnight at home. Electricity cost to charge from 0% to 100% in Ireland is approximately €0.30–€0.45 per full cycle.
06 FRAME GEOMETRY & RIDER SIZING Adjustable Sizing (Universal Fit for 155–195cm)
Ergonomic rider geometry balancing agile urban steering with high-speed tracking stability over road irregularities, tram lines, and wet asphalt.
07 VEHICLE WEIGHT & SYSTEM PAYLOAD 24.5 kg // 130 kg Safe Carrying Capacity
Engineered strength-to-weight ratio ensuring frame stiffness under load while maintaining manageable weight for apartment living, car racks, or hallway parking.
08 BRAKING SYSTEM & ROTORS Hydraulic Disc Brakes (180mm Rotors with Motor Cut-Off)
High-performance disc calipers with heat-dissipating rotors and integrated motor cut-off sensors. Instant, progressive stopping power regardless of rain or road grime.
Fade-free wet-weather braking when stopping down steep slopes or reacting to unexpected Dublin traffic in wet autumn and winter conditions.
09 DRIVETRAIN & TRANSMISSION Shimano 7-Speed / 8-Speed Drivetrain with Anti-Rust Chain
Calibrated gear ratios matching optimal pedalling cadence with motor torque output. Smooth shifting under pedalling load and long-wearing mechanical components.
All drivetrain components are inspected, tuned, and torqued to manufacturer specifications prior to customer delivery by our workshop at 157 Capel Street.
10 WEATHERPROOFING & IP RATINGS IP54 (Protected Against Rain Splashes & Road Spray)
Protected against road spray, light showers, and dust. Sealed cable entries and weather-resistant controller compartments.
For torrential Irish winter downpours, choose our Lifty Labs Stage 2 IPX6 Japanese Super Sealant Weatherproofing service (€199) applied at 157 Capel Street, Dublin 1.
03 PARTS & ACCESSORIES: FITMENT CHECK
We have not yet confirmed specific compatible parts or machines for MapFour Roam ST Step-Through Electric Bike.
Compatibility must be confirmed for your exact model, year or revision and the selected part. Send us the model details and clear photos of the existing part, connectors and labels before ordering.
For chargers and batteries, the voltage, current, battery system, connector, polarity and any communication protocol must all be approved for the exact machine. A matching plug or similar product name does not establish compatibility.
04LIFTY LABS DUBLIN WORKSHOP (SERVICING & WEATHERPROOFING)
Lifty Electric Annual Service
Full 52-point checkup, brake bleeding, gear tuning, bolt tightening, and battery check in our Dublin workshop.
Lifty Labs Club Membership Tiers
Join our workshop club to save on servicing and repairs all year round:
- [✓] 20% OFF Full Annual Service
- [✓] 10% OFF Punctures & Diagnostics
- [✓] 15% OFF Brake Labour
- [✓] Free Annual Safety Health Check
- [✓] 50% OFF Annual Service (Save up to €100!)
- [✓] 50% OFF Puncture Repair Labour
- [✓] 30% OFF Diagnostics & Brake Labour
- [✓] 24-Hour Express Workshop Turnaround
- [✓] 1 FREE FULL ANNUAL SERVICE INCLUDED (Worth €199.99!)
- [✓] 2 FREE Puncture Labour Repairs Included
- [✓] #1 Highest Workshop Priority (Skip the queue)
- [✓] 50% OFF Brake & Diagnostic Labour
- [✓] 10% OFF All Replacement Parts
- [✓] Member discounts on new bikes & gear
Irish Weather Protection Upgrades
Irish commuting is famous for sudden downpours and road puddle spray. We provide two levels of precision workshop weatherproofing sealed by Patrick Murphy at 157 Capel Street:
Standard manufacturer warranties do NOT cover water damage. Only our Stage 2 IPX6 Weatherproofing (€199) protects your warranty against wet Irish weather. (Protection is strictly capped at Stage 2 IPX6; no e-bike or e-scooter is 100% submersible underwater).
05 WARRANTY COVERAGE & DELIVERY RATES
1 YEAR COMPONENT WARRANTY
- 1 Year: Full replacement for any manufacturing defect. Exact model and part compatibility must be confirmed before ordering.
06 SIMPLE QUESTIONS & ANSWERS (FAQS)
Standard bikes and scooters handle light rain. For daily Irish commuting, we offer Stage 1 IPX5 (€99) or Stage 2 IPX6 Japanese Super Sealant (€199) weatherproofing upgrades.
Dublin delivery is €49.00. Nationwide delivery is from €89.00 for standard e-bikes/e-scooters, and from €149.00 for cargo bikes and heavy scooters. Small parts are €9.99.
Drop into our workshop at 157 Capel Street, Dublin 1 (Tue, Thu and Sat 13:00–16:30) or email hello@lifty.co to book.
Frame Size & Fit
Official manufacturer sizing, straight from the brand's own size chart. Select your height to confirm your size and see the vehicles we recommend.
MAPFOUR official size
MapFour does not publish an official rider-height chart for the MapFour Roam ST Step-Through Electric Bike. It is built around standard adult proportions; for exact fit questions, email hello@lifty.co with your height and inseam.
Select your height
We confirm your official frame size and recommend e-bikes that fit you.
Size data is published by the manufacturer and verified by Lifty Electric. Still unsure between two sizes? Email hello@lifty.co with your height and inseam and we'll confirm before you order.
Parts & Accessories
We confirm fitment before recommending a replacement for your machine.
Compatibility must be confirmed for your exact model, year or revision and the selected part. Send us the model details and clear photos of the existing part, connectors and labels before ordering.
We do not recommend a part solely from its title, dimensions, connector appearance or nominal voltage.
