VIVI Electric Bike Combo Sale ACE01 + ACE07 Buying Guide

The VIVI Electric Bike Combo Sale packages two distinct fat-tire models—the traditional-frame ACE01 and the step-through ACE07—into a single multi-bike purchase geared toward households or riding partners seeking matching high-power capability. This dual-bike package is best suited for couples or family members who want identical battery capacities and motor outputs while accommodating different frame geometry preferences, though it is not ideal for buyers who lack spacious storage or a way to transport two heavy, 70-pound-plus bicycles.

Understanding the Shared Core Performance

Both the ACE01 and ACE07 are built around a robust electrical foundation designed to handle mixed terrain and light off-roading. Each bike features a 750-rated-watt rear hub motor that peaks at 1500 watts, paired with 90 Nm of torque to assist with steep inclines. Power is supplied by a removable 48V, 15Ah semi-integrated battery yielding 720 Wh of total capacity, which comfortably outscales the smaller power banks found on entry-level commuter bicycles. Both units also roll on 26-inch by 4.0-inch all-terrain fat tires, feature front suspension forks with 100 mm of travel, and include Shimano 7-speed gear systems alongside 180 mm disc brake rotors.

Frame Geometry and Pedal Assist Differences

The primary divergence between the two combo bikes lies in how they deliver power and handle physical rider inputs. The ACE01 utilizes a torque sensor, which scales motor output dynamically based on how hard you push down on the pedals, creating a natural, bicycle-like response. It is also outfitted with hydraulic disc brakes that offer progressive stopping power with minimal hand fatigue. Conversely, the ACE07 relies on a traditional cadence sensor (which engages the motor as soon as the cranks spin) and mechanical disc brakes. While the step-through frame of the ACE07 makes getting on and off effortless for daily errands or casual riders, its mechanical brakes require more frequent manual cable adjustments than the hydraulic system on the ACE01.

Long-Term Ownership Costs and Practical Realities

Owning two heavy fat-tire electric bikes introduces logistical and maintenance expenses that go beyond the initial purchase price. Each bike weighs roughly 72 to 78 pounds, meaning routine tasks like loading them onto a standard vehicle hitch rack require a heavy-duty rack rated for e-bike weights. Replacement parts—particularly specialized 26-inch fat tires, heavy-duty inner tubes, and high-capacity 720 Wh replacement battery packs—will cost more over time than components for standard commuter bicycles. Furthermore, because both bikes utilize UL-certified electrical systems, charging requires dedicated space near standard electrical outlets where both 54.6V smart chargers can operate safely indoors during cold winter months.