Power
To help fatigue-free riding, the geared rear hub motor delivers natural-feeling pedal assist through four Eco, Trail, Sport, and Turbo modes. Eco mode provides minimal power boost and is ideally suited for flat terrain. Trail and Sport modes up the assistance to comfortably handle hills or headwinds. Turbo provides a maximum of 750W power for quick starts or passing maneuvers. Riders can also enable a separate twist throttle for temporarily boosting acceleration without pedaling. Regardless of the setting, the balanced power curve flawlessly blends with the rider’s pedal stroke for intuitive pedal-as-you-feel control over speed and distance, reducing strain.
Range
The Radrunner’s high-capacity 48V/14Ah lithium-ion battery enables an impressive 25-45 miles range based on typical riding conditions and assist level usage. Average-fit riders averaging 15mph can expect to travel 30-40 miles on Eco or Sport without fully draining the charge. However, the range varies significantly depending on physical factors like rider weight, weather conditions like temperature or wind, and hilly terrain requiring higher assists. Periodic checks of the battery level display allow adjusting assist modes or taking battery-preserving breaks to maximize mileage. An included charger repowers the battery to full in around 8 hours for day-long riding enjoyment.
Handling
The Radrunner exhibits nimble yet stable handling, befitting street riding and recreational use. Its low center of gravity and balanced weight distribution between the sturdy 20-inch wheels promote agility and easy steering without sacrificing comfort. The 6061 aluminum diamond frame delivers rigidity without stiffness, while the suspension fork absorbs bumps to prevent jolts from reaching the rider. At just under 65 pounds fully assembled, the e-bike feels light on its wheels yet inspires confidence via its weighty construction. Wider 20 x 3.3 inch Kenda tires provide unflappably calm rolling over road irregularities yet tenacious traction in all conditions. Between the upright riding position, short wheelbase, and centralized motor, navigating traffic, corners, and trails is intuitive fun. Together, these attributes comprise a handling character that’s sure-footed yet lively for big smiles on every journey.
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Braking
Powerful Tektro mechanical disc brakes utilize 180mm rotors front and rear to deliver smooth, confidence-inspiring stopping performance. Compared to rim brakes, discs continue braking optimally in wet conditions. Their increased capacity is well-suited to managing the e-bike’s extra weight and higher speeds. Precise control and stopping power enhance safety for riders and those around them.
Wheels and Tires
Sturdy aluminum rims with 36 stainless steel spokes and brass nipples provide durable, long-lasting hoops that securely support up to 300 pounds of bike and cargo weight. Thicker 20-inch diameter and wide tires soak up road imperfections. The rear houses the geared hub motor, while the front uses sealed bearings for efficient rolling.
Broad 20 x 3.3 inch Kenda K-Rad tires deliver plush suspension, maximum road traction, and a self-sealing strip that minimizes flat risks. Their reassuringly wide and textured footprint improves control no matter the surface. Comfortable padding and low air pressure result in a smooth, enjoyable ride.
Controls
The RadRunner 2’s controls utilize intuitive manual inputs paired with app-enabled electric functions for a seamless experience.
Display
While the RadRunner 2 lacks a built-in display, it is compatible with the Rad Power Bikes app, which allows a connected smartphone to function as the display. Using Bluetooth connectivity, the app provides key riding data like current speed, total distance traveled, pedal assist level selection, and battery level indicator. The intuitive app interface makes monitoring this information simple and convenient. Riders can easily customize their pedal assist preferences directly from their phone’s large screen.
In the event of a stop, leaving the phone safely in a backpack or mounted bike holder doesn’t compromise access to assist levels or safety lights. This simplified approach avoids a dedicated display’s extra cost and complexity while retaining core functionality through most riders’ ever-present smartphones.
Control Buttons
Convenient buttons on the handlebar-mounted display allow the rider to switch between the 4 levels of pedal assist – Eco, Trail, Sport, Turbo – from a seated position. Pressing the plus or minus buttons cycles through each increasing motor power level. Another button checks the battery level by lighting up the fuel gauge. The power button turns the entire system on/off. Buttons are ergonomically positioned within easy thumb reach so the rider’s hands stay on the bars, prioritizing control.
Pedal Assist & Throttle
The pedal-assist sensor and adjustable motor control modes work together intelligently. Pedaling registers a cadence that the motor assists proportionally up to the selected speed/power limit. This natural cycling feel is complemented by an auxiliary throttle for limited “twist and go” burst ability off the line or up hills. The supplementary power blends seamlessly to suit riders of varying abilities and trip purposes.
Drivetrain
Keeping mechanical upkeep simple is a single-speed drivetrain with no derailleur or complex shifting. The chain connects the 52T front chainring directly to the 16T rear cog for smooth rotations forward. Low gears are suited for hill-climbing efforts, while high assists boost flat/slight inclines, reducing strain on the rider. Reliability and ease characterize this no-fuss system that works quietly in the background.
Assembly
Assembly of the RadRunner 2 is straightforward and can be completed in just a few hours with basic hand tools. The frame arrives fully assembled, so the main tasks involve mounting the wheel hubs, attaching the pedals and handlebars, installing the starter battery, and securing accessories like the front and rear racks. Comprehensive printed instructions guide homeowners clearly through each step. With some patience and an extra set of hands, the whole bike can be ready for its first ride in the afternoon. Quick assembly makes the RadRunner 2 an appealing option for those seeking electric cycling convenience without the multi-day mechanic shop wait.
Accessories
A sturdy moped-style kickstand extends from the frame for easy parking anywhere and loading or unloading cargo. It securely props the fully loaded bike at a walking-friendly angle. While fenders aren’t included, mounts on the front and rear ends allow mounting optional full-coverage fenders to protect the rider and motor from road spray. Rad Power Bikes offers over 330 official accessories that can be mixed and matched to customize the RadRunner 2. From integrated rear racks and utility baskets to mirrors, motor and battery upgrades, and lighting packages, riders can configure the bike to suit their needs perfectly. With so many customizable add-ons, it’s easy to create a uniquely tailored commute, adventure, or urban assault machine.
Sizing
Sizing: With its step-through frame, adjustable handlebars and seat tube, the RadRunner 2 is designed to comfortably fit a wide span of teen and adult riders. Those 4’11” to 6’2″ tall should find their preferred fit on this bike. The open frame design makes for easy mounting and dismounting. At the same time, the range of adjustment means riders can achieve a lean-forward cycling posture or a more upright adventure position depending on preferences. This universal sizing contributes to the bike’s versatility in all urban environments and riders. Proper fit ensures an enjoyable experience for all.
Verdict
This e-bike is a compelling option for commuting, errands, and casual recreational riding. Its customizable utility, user-friendly controls and apps, and accessible step-through design expand mobility options for various cyclists. Powerful yet eco-friendly pedal assist promises easier cruising around town than a regular bike. And the modern mid-tail kit looks right at home on busy urban streets.
While the fixed single-speed gears and lack of a built-in display mean sacrificing some versatility, these seem minor compared to the smiles and exercise this bike will put on its rider’s face. For those seeking a practical and enjoyable way to replace car trips under 10 miles, the affordable RadRunner 2 delivers functionality and fun in an approachable electric package. Its combination of value and capabilities earns it a strong recommendation.
The tires also feature a puncture-resistant lining that will protect against thorns and broken glass you run over on the trail. You won’t need to worry about flat tires to inconvenience you in the middle of running your errands.
