SUPER73-B1G Core Electric Bike – 52V Full-Size Urban Fat Tire Cruiser (A-Series)

Product Overview

Command the Streets with the A-Series Core Flagship The SUPER73-B1G Core is built for riders who want maximum frame size, road presence, and structural integrity without the added complexity of heavy off-road components. As the largest framework in the brand’s new wave A-Series ecosystem, the B1G eliminates the cramped, crouched riding posture of traditional mini-utility bikes by offering a tall, confident 33-inch seat height. Constructed around a lightweight yet ultra-rigid aircraft-grade aluminum chassis with heavy-duty thru-axle architecture, it provides laser-straight tracking stability and immense frame durability for the modern urban landscape.

Efficient 52V Power & Expandable Modular Range The B1G Core is driven by a highly efficient 500W nominal rear hub motor paired with an advanced 52V electronics system, delivering snappy throttle response and reliable power optimized for city boulevards. Tucked neatly beneath the secure flip-up bench seat is an internal lockable storage compartment housing a clean 520Wh primary battery, with pre-engineered structural room to install a second modular battery (sold separately). Run it single for a quick, agile daily commute, or dual-load it to instantly double your total capacity for all-day cross-town exploration.

Clean, Low-Maintenance Urban Design By utilizing a completely rigid front aluminum fork and a pure single-speed drivetrain, the B1G Core drops significant vehicle weight and virtually eliminates routine mechanical maintenance. Stopping duties are handled by smooth, low-effort 2-piston hydraulic disc brakes, giving you crisp control and shorter stopping distances than traditional cable brakes. Riding on extra-wide 16″ x 4.5″ JAKAL street fat tires, this full-sized machine ensures a massive rubber-to-asphalt contact patch, soaking up minor road chatter and delivering maximum stability through every corner.

 SPECIFICATIONS & PERFORMANCE BREAKDOWN

⚡ Performance & Electronics

• Motor: 500W nominal rear hub motor (optimized for smooth power delivery and high electrical efficiency).

• Top Speed: Limited to 20 MPH out of the box (Class 2 compliance with an on-demand thumb throttle).

• High-Voltage Battery: Powered by a 520Wh (52V 10Ah) lithium-ion battery pack. Fully UL2271 compliant to meet global safety, charging, and thermal protection standards.

• Range (Single vs. Dual Battery):

  • Single Stock Battery: Provides an agile 15–20 miles of real-world urban range under standard Class 2 throttle operation.

  • Dual Battery System: Built-in capacity to accept a second modular battery (sold separately) to instantly scale up your range to a massive 35–40 miles.

• Gearing: Pure Single-Speed drivetrain. This design keeps mechanical maintenance down to zero, relying entirely on the high-voltage hub motor and thumb throttle to do the work.

• Display System: Includes the updated A-Series digital smart display, providing clean, high-contrast readouts for battery life percentage, current speed, estimated remaining range, and pedal-assist level.

• On-The-Go Charging: Includes dual USB-C charging ports hidden safely inside the seat compartment to keep your mobile devices or action cameras charged while riding.

• Charge Time: 5 hours to a full charge.

🛠️ Core vs. Special Edition (SE) Differences

Opting for the B1G Core trim simplifies the component stack to maximize reliability, decrease weight, and lower the entry price point compared to the SE model:

• Rigid Front End: The Core uses a lightweight, completely rigid aluminum front fork instead of an adjustable suspension fork, shaving down front-end weight for nimbler steering control.

• 2-Piston Hydraulic Brakes: Outfitted with responsive, low-maintenance 2-piston hydraulic disc brakes (compared to the heavy-duty 4-piston brakes on the SE).

• JAKAL Street Tires: Shipped with extra-wide 16″ x 4.5″ JAKAL street fat tires, providing a smooth, quiet, and low-rolling-resistance ride compared to the Maxxis SuperSucker tires found on the Special Edition.

• Core Colorways: Available in the distinct, sleek Core-exclusive finishes—namely Titanium Ore and Cullenberry.

📐 Dimensions, Weight & Fit

• Seat Height: Fixed 33″ seat height. This is the tallest and largest frame profile in the entire A-Series line (positioned above the 27″ MZFT and the mid-size 30″ M1D).

• Recommended Rider Height: Form-factored specifically to comfortably fit taller riders between 5’7″ and 6’7″.

• Rider Weight Limit: Supports up to 250 lbs max.

• Vehicle Weight: 79 lbs (Significantly lighter and easier to maneuver than the 92 lb SE model due to the rigid fork and lighter battery cell configuration).

• Lighting: Factory-integrated high-output LED headlight and matching rear LED tail/brake light. (Note: Handlebar horn is not included on Core trims).