Technical Specifications:
| manufactured in | USA |
| model year | 2022 |
| bicycle type | Cargo Bike |
| range (km) | 193 |
| battery (kWh) | 0.72 |
| max. speed (km/h) | 45 |
| power (W) | 750 |
* Minimum price set by the manufacturer, excluding taxes and additional options
Flux: Revi’s Dual-Battery Cargo Powerhouse for City and Family Hauling
Flux by Revi Bikes brings heavy-duty capability to the cargo e-bike scene with a smooth step-through frame, a gutsy 750W motor, and a dual battery option that stretches its legs well past 100 miles (160+ km). Proudly manufactured in the USA and priced from $2,398 (approx. £1,850 / €2,200), this e-bike is for riders who need serious hauling ability and all-day performance without sacrificing maneuverability or comfort.
- Made in the USA, launched in 2022, targeting urban and family riders
- 440 lb payload capacity supports cargo, child seats, and grocery runs
- Dual battery system enables up to 193 km of range
- Includes integrated racks, fenders, lights, and bamboo foot panels
Specs: Power, Range, and Charging Details
Battery Specifications
The Flux runs a Samsung 48V 15Ah lithium-ion battery (0.72 kWh), with an optional second pack (either 10Ah or 15Ah) available for monster range up to 193 km (120 miles). The charging setup is clever—a single 2A charger can juice both batteries simultaneously in 4 to 6 hours. Battery bags are swappable, and the whole system is waterproof and removable.
- Primary Battery: 48V 15Ah Samsung (0.72 kWh)
- Optional: Dual battery setup with 10Ah or 15Ah extension
- Total Range: Up to 193 km (120 miles)
- Charging Time: 4–6 hours with single charger
Performance Specs
Push the Flux and it pushes back—with a 750W rear hub motor (peaking at 1200W) and 85 Nm of torque. It’s a natural climber with heavy loads and can shift between Class 2 (20 mph / 32 km/h throttle) and Class 3 (25 mph / 45 km/h pedal assist). The cadence sensor has a minor delay, but the half-twist throttle delivers power instantly for those quick starts. A Shimano Tourney 7-speed drivetrain gives it all the gear spread you need.
- Motor: 750W nominal, 1200W peak
- Top Speed: 45 km/h (25 mph)
- Torque: 85 Nm
- Assist Modes: Eco, Normal, Sport with 5 PAS levels
- Throttle: Half-twist grip
Hydraulic disc brakes and puncture-resistant 20"x4.0" K-Shield tires with reflective strips give confidence in stop-and-go traffic or on gravel backroads. It’s sturdy, responsive, and built to carry—without riding like a tank.
Color Range and Design:
Exterior
The Flux features a 6061 aluminum alloy step-through frame that makes getting on and off feel effortless, even with cargo or a child on board. Colors like Nebula, Grey, Cream, and Navy keep things vibrant. The aesthetic leans modern utility, with wood-style bamboo panels, integrated racks, rear footrests, and guards that make it clear: this bike means business.
Color Variants
Whether you want to blend in or stand out, the Flux’s color options give riders a way to customize. Functional details like the 550-lumen front headlight, taillights with turn signals, and USB-enabled LCD display mean you’re lit, visible, and powered up at all times—even at night.
Pros and Cons:
Pros
- 750W motor with 1200W peak and strong climbing torque
- Dual battery capability enables up to 193 km range
- Hydraulic brakes, full suspension, and puncture-resistant fat tires
- 440 lb payload makes it a heavy-hauling urban hero
- Standard accessories: racks, lights, fenders, bamboo foot panels
Cons
- 73 lb weight makes it bulky for tight turns or lifting
- Shimano Tourney drivetrain is entry-level
- Cadence sensor lag on motor response
- Proprietary parts may limit long-term servicing
- Mixed customer service reviews across retailers
Conclusion: Flux – Built for Hauling, Powered for the Long Haul
Whether you're moving kids, groceries, gear—or all three—the Flux gets the job done with swagger. The dual battery system is a game-changer for anyone doing serious mileage, and the ride quality keeps it from feeling like a burden. It’s a heavy-duty hauler wrapped in commuter-friendly usability.
Manufacturer: Revi Bikes
Watch the Video Overview
Comparison:
When it comes to electric cargo bikes, Flux finds itself up against the Velotric Packer 1, Aventon Abound, RadWagon 4, and Lectric XPedition. All bring something to the table, but Flux swings back with dual battery capability and serious cargo chops.
Range Comparison
Flux leads the charge with up to 193 km (120 miles) range using dual 15Ah batteries. Velotric Packer 1 hits 128 km (80 miles), Abound 96 km (60 miles), and Lectric XPedition 121 km (75 miles with dual batteries). RadWagon 4 trails slightly at 72 km (45 miles).
Top Speed Comparison
All four e-bikes hit 45 km/h (25 mph) in Class 3 mode, but Flux adds Class 2 throttle functionality up to 32 km/h (20 mph) out of the box.
Motor Output
Flux delivers 750W with 1200W peak output and 85 Nm of torque—comparable to Aventon Abound and Velotric Packer 1. Lectric XPedition gets dual 500W motors for 1000W total power. RadWagon 4 runs 750W with less torque at 80 Nm.
Charging Time
Flux uses a 2A charger that powers both batteries in 4–6 hours. Abound and Packer 1 take 6–7 hours, while XPedition needs more time when both batteries are depleted.
Price Comparison
Priced at $2,398 (approx. £1,850 / €2,200), Flux undercuts the Velotric Packer 1 ($1,999) when upgraded with dual batteries. It sits between Lectric XPedition ($1,399–$1,699) and Aventon Abound ($2,199), while RadWagon 4 is the budget pick at $1,599—but without dual battery support.
