• Shipped as class2
• 2 Person Seat Version Including 2 Seats: Standard Seat & 2-person Seat
• Check your state’s ebike regulations before purchase
  

We offer free shipping on all of our bikes everywhere within the US lower 48 States.（Excludes: Alaska/Hawaii, US Protectorates, APO/FPO, PO Box）

Shipping Time
In-stock orders typically ship in the next business day, unless otherwise noted on the product page. 

We provide optional signature services. There are so many electric bikes thefts, customers are advised to choose this option. We purchase this service at no cost to you.

If your product arrives damaged, please email us atmailto:support@roll-road.com.Please retain all original packaging and materials for potential returns.

Why is the Roll-road Emma 4.0 the most powerful electric bike in Australia?

Motor: 52V 1000W BAFANG rear hub brushless motor

Battery: 52V 20Ah×2 EVE lithium-ion battery

Charging Time: 4–6 hours

Range: Up to 240 km on a full charge

Top Speed: 25 km/h (public road compliant), 56 km/h (unlocked for private use)

Frame: Reinforced 10mm-thick 6066 aluminum alloy

Tires: 20x4" INNOVA puncture-proof off-road tires

Brakes: 180mm four-piston hydraulic disc brakes

Suspension: Front dual hydraulic suspension + rear genuine nitrogen shock absorber

Display: Waterproof and dustproof color LCD with built-in USB phone charging

Weight: 50 kg / 38 kg (without battery)

Introducing Emma 4.0: All the Strength of 3.0 — Refined for Australian Roads
Emma 4.0 keeps everything you loved about the 3.0 — the 52V dual battery, heavy-duty frame, smooth hydraulic suspension, and 200+ km range — and upgrades what matters most:

✅ Integrated frame battery – lower centre of gravity, cleaner look, better stability

✅ Brighter LED headlight & larger turn signals – safer for dawn/dusk rides

✅ Ergonomic battery handle – easier to remove and carry

✅ Optimised electrical system – smoother pedal assist, quieter operation

All products shipped by Roll-road are inspected by both the manufacturer and Roll-road mechanics. However, it is the rider’s responsibility to thoroughly check and tighten all bolts and screws before assembly and prior to the first ride. Failure to do so—including improper alignment or neglecting to verify bolt torque—may result in injury, for which Roll-road accepts no liability.

It is the customer’s responsibility to read and fully understand all product documentation provided on the Roll-road website at the time of purchase, including battery care instructions, maintenance guidelines, and warranty terms.

Actual range and speed may vary depending on rider weight, terrain, gradient, wind conditions, battery age, state of charge, riding speed, and other operational factors.

Roll-road products are intended strictly for recreational use. Regulations governing the use of electric bikes differ across Australian states and territories. Riders are responsible for riding safely, wearing a helmet and appropriate protective gear, and complying with all applicable local laws and usage requirements. Any information or guidance provided by Roll-road is general in nature and may not apply uniformly to all users or situations.

Please note: While every bicycle is carefully assembled and inspected before dispatch, minor adjustments are often necessary after delivery. It is common for components such as derailleurs to shift slightly, brake rotors to rub lightly, or fenders to become misaligned during transit. These issues result from normal movement during shipping and are considered standard post-assembly tuning—not manufacturing defects—and therefore are not covered under Roll-road’s warranty.

For the best riding experience and optimal safety, we strongly recommend having your bicycle assembled or inspected by a qualified professional mechanic.