JANSNO X50 Electric Bicycle, 750W Motor, 65Nm, 48V 17Ah Battery

Fast Charge. Light Frame. Ready for the Back Track.

The JANSNO X50 is built for riders who want capability without the bulk. At 37kg, it is one of the lighter fat-tyre e-bikes in its class—manageable to load, store, and maneuver on narrow tracks. The 750W motor delivers 65Nm of torque with a top speed of 50km/h, climbing 25° grades with up to 120kg on board.

What sets the X50 apart is its charging speed. The 48V 17Ah battery goes from empty to full in 4–6 hours, roughly half the time of many comparable e-bikes. Plug it in at the bach, the woolshed, or the office and have a full charge by the next ride. The smart display shows speed, battery, and PAS level with adjustable brightness for early starts and late finishes. Three modes—throttle, pedal assist, unassisted—let you match the bike to the terrain and your energy level.

Regulatory Note for NZ Riders: New Zealand law limits e-bike motor power to 300W continuous for use as a bicycle on public roads, but does not currently mandate a speed cut-off. The X50’s 750W motor exceeds this power limit. It is best suited for private property, farm tracks, and off-road trails. If you intend to ride on public land, verify current NZTA guidance and local bylaws first.

FEATURES

Fast Charging: 4–6 hours from empty to full. Roughly half the charge time of many fat-tyre e-bikes.

750W Motor, 65Nm Torque: Top speed 50km/h. Climbs 25° grades. 120kg capacity.

37kg Lightweight Build: High-carbon steel frame. Easier to transport and store than dual-battery models.

48V 17Ah Battery: Up to 50km pure electric, 60km pedal assist. Removable for indoor charging.

Smart Display: Speed, battery, 5 PAS levels, adjustable brightness. Three riding modes.

20" x 4.0 Fat Tyres: Puncture-resistant layer. Handles NZ gravel roads, farm tracks, and beach sand.

SPECIFICATIONS

Frame Material: High-carbon steel

Motor: 750W brushless DC

Torque: 65Nm

Battery : 48V 17Ah (816Wh), removable

Charging Time: 4–6 hours

Pure Electric Range: Up to 50km

Pedal Assist Range: Up to 60km

Max Speed: 5 levels - 19 / 27 / 34 / 40 / 48 km/h (display shows up to 50km/h at level 5 under load)

Max Gradient: 25°

Weight Capacity: 120kg

Tyres: 20" * 4.0, puncture-resistant layer

Brakes: Mechanical disc (front & rear)

Product Size: 165 * 70 * 120 cm

N.W. / G.W.: 37kg / 44.5kg

Included: Phone holder, pump, lock, charger, headlight, toolkit, pedals, manual

CARE & MAINTENANCE

New Zealand’s wet winters and coastal humidity demand consistent care, especially for a steel-framed bike with exposed mechanical components.

Frame and Corrosion: Wipe the high-carbon steel frame dry after every wet ride. Pay attention to welds, the head tube, and around the bottom bracket. Apply a frame wax or protective spray monthly. Coastal riders (Auckland, Wellington, Christchurch) should do this more frequently—salt air accelerates rust on unprotected steel.

Battery in Cold Weather: NZ winter temperatures reduce lithium battery performance. Store and charge the battery indoors. Never charge a cold battery immediately after bringing the bike in from freezing conditions—let it reach room temperature first. For long-term storage (over a month), charge to 60% and check every 8 weeks.

Mechanical Brakes: These need more attention than hydraulic systems. Check pad thickness every two weeks during wet months. Adjust cable tension at the barrel adjuster when levers feel loose. If you hear grinding, replace pads before the rotor is damaged.

Chain Care: The 7-speed drivetrain will pick up grit on gravel and farm tracks. Degrease and re-lubricate after every wet or muddy ride. Check chain stretch monthly.

Smart Display: Keep the display dry. Do not use a high-pressure washer near the screen or buttons. Wipe with a damp cloth only. If the display fogs internally after a wet ride, let it dry naturally—do not apply heat.

Tyre Pressure: 18–20 PSI for gravel and hardpack. 12–15 PSI for sand and soft mud. Check weekly.

FAQ

Q: Is the X50 legal on New Zealand roads?

A: New Zealand law defines a power-assisted pedal cycle as having a motor not exceeding 300W continuous. The X50’s 750W motor exceeds this limit. While NZ does not currently mandate a speed cut-off, a bike over the power limit may not legally qualify as a bicycle for public road use. Use on private property and off-road trails is straightforward. For public roads, check NZTA guidance and local council bylaws before riding.

Q: How does the X50 compare to the X70 for NZ use?

A: The X50 is lighter (37kg vs 53kg) and charges faster (4–6 hours vs 6–8 hours). The X70 has dual batteries for 90km pure-electric range. For lifestyle block use where you need to lift the bike onto a trailer or store it in a tight shed, the X50’s lighter weight is a real advantage. For maximum range and cargo capacity, the X70 is better.

Q: What is the realistic range on NZ terrain?

A: The 50km pure-electric figure assumes flat ground and moderate speed. On rolling farm tracks or hilly backcountry, expect 35–45km depending on rider weight and throttle use. Pedal assist extends this to roughly 50–55km in real conditions. The fast charge time means a lunchtime top-up is practical if you have access to power.

Q: Can I ride it in the rain?

A: Yes, the electrical components are sealed for normal wet-weather riding. Avoid submerged water crossings and never use a high-pressure washer on the motor hub, display, or battery terminals. Dry and lubricate the chain after wet rides.

Q: How much assembly is needed?

A: 90% pre-assembled. Attach the front wheel, handlebars, pedals, and seatpost. Inflate tyres. Charge the battery. The included toolkit covers basic assembly. At 37kg, one person can manage unpacking and setup with care. If you are not confident with bike assembly, have a local shop check your work before the first long ride.