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Tips & Cycling Knowledge
Cadence vs Torque Sensor: What’s the Difference and Which E-Bike Fits You Best?
When shopping for an electric bike, one term you’ll often come across is “pedal assist”. But did you know that there are two main types of pedal assist sensors that can dramatically change the way your ride feels?
Let’s break it down: Cadence Sensor vs Torque Sensor — what they are, how they feel on the road, and which one suits your lifestyle best. We’ll also show how these technologies come to life in KINGBULL’s current e-bike lineup.
What Is a Cadence Sensor (a.k.a. Speed Sensor)?
A cadence sensor detects when you're pedaling and sends a signal to the motor to start assisting. It doesn’t care how hard you’re pedaling — only if you’re pedaling.
🔧 How It Works:
Measures your pedal rotation speed (RPM).
When you start pedaling, the motor kicks in after a brief delay.
The level of motor assistance is determined by the assist level you select, not by your physical effort.
🚲 How It Feels:
Predictable and consistent.
Ideal for relaxed cruising or riders who want the motor to do most of the work.
Feels more like riding a scooter with pedals.
✅ Best For:
Casual riders
Seniors
Commuters who want an easy ride without breaking a sweat
📍 KINGBULL Models with Cadence Sensors:
Literider 2.0: Lightweight, foldable, and super easy to ride—perfect for city commuters.
Hunter 2.0: Rugged and ready for adventure, this off-road beast gives you the extra power without needing to pedal hard.
What Is a Torque Sensor?
A torque sensor takes your pedal pressure into account. The harder you push the pedals, the more power the motor gives you. It’s a dynamic system that creates a more natural, intuitive riding experience.
🔧 How It Works:
Measures the force you're applying on the pedals in real time.
Motor output changes with your effort.
It’s like having a very smart riding partner who knows exactly when you need help.
🚲 How It Feels:
Smooth and responsive.
Feels like riding a traditional bike, just with a bionic boost.
Better control and balance, especially on hills or in traffic.
✅ Best For:
Fitness riders who want a workout
Riders tackling varied terrain or hills
Anyone who wants the most natural ride feel
📍 KINGBULL Models with Torque Sensors:
Verve: A compact, foldable e-bike with a premium feel — responsive, agile, and commuter-friendly.
Jumper GO: Our high-performance e-bike for riders who want speed, control, and that high-end riding experience. Now available for pre-order with a $600 early bird discount!
🔍 Cadence vs Torque: A Side-by-Side Comparison
Feature
Cadence Sensor
Torque Sensor
Motor Response
On/Off style
Proportional to pedal force
Ride Feel
More like a scooter
Feels like a traditional bike
Best For
Easy riding, commuting
Fitness, dynamic terrain
Energy Use
Can drain battery faster
More efficient, conserves power
KINGBULL Models
Literider 2.0, Hunter 2.0
Verve, Jumper GO
So, Which One Is Right for You?
If you want a reliable, low-effort ride — something that gets you from A to B with minimal exertion — go with a cadence sensor model like the Literider 2.0 or Hunter 2.0.
But if you crave that natural, responsive ride and want to feel like your bike is truly in sync with your pedaling, the Verve or Jumper GO with torque sensors might be your perfect match.
Final Thoughts
Whether you're cruising through the city or climbing mountain trails, knowing the difference between cadence and torque sensors will help you choose the bike that feels right. At KINGBULL, we’ve designed our lineup to suit different riding styles — because every rider deserves a bike that matches their rhythm.
Ready to ride smarter? Explore our bikes now.
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Tips & Cycling Knowledge
What Does "3 Green & 1 Red Light" Mean on Your KINGBULL Battery?
At KINGBULL, we want you to feel confident and informed when it comes to taking care of your e-bike—especially the battery, the heart of your ride.
One question we hear all the time is:
“Why does my battery still show one red light after it’s fully charged?”
Let’s clear that up for you!
3 Green + 1 Red = Fully Charged
When your battery indicator lights up with three green lights and one red light, this means your battery is fully charged (80%–100%) and ready to ride. This is completely normal and not a sign of a problem.
Here’s a quick breakdown of what the lights mean:
Light Pattern
Battery Power Level
✅ 3 green + 1 red
80%–100% (Fully charged)
✅ 2 green + 1 red
60%–80%
✅ 1 green + 1 red
40%–60%
❗ Only red
20%–40% (Recharge soon)
So next time you unplug your charger and see that single red light still glowing—relax. That’s just how your KINGBULL battery shows it’s at peak power.
How to Check Battery Status After Charging
To accurately view your battery level:
Unplug the charger from the wall.
Disconnect the charger from the battery port.
Now check the battery indicator lights. Simple as that!
Smart Charging Tips
To keep your battery in top condition, follow these expert-approved habits:
Charge on or off the bike—whichever is most convenient.
Top off your battery anytime—no need to wait until it’s empty.
New batteries may take longer to charge the first few times—this is normal.
No memory effect—feel free to recharge after short rides.
Avoid charging in extreme heat or cold (below 14°F or above 104°F).
Charging Safety First!
Stop charging and contact KINGBULL immediately if you notice:
Charging takes much longer than usual
Smoke, odor, or leaking fluid
The battery or charger gets very hot
Your safety is always our top priority.
What About the Charger Light and Sound?
While charging your KINGBULL battery, you might notice a faint humming or buzzing sound coming from the charger—this is completely normal and nothing to worry about. It’s simply the sound of the charger operating as it converts voltage.
Here’s what the charger indicator lights mean:
🔴 Red light = Charging in progress
🟢 Green light = Charging complete
Once the battery is fully charged, the charger will automatically stop and switch to green light mode.
Before You Ride…
After charging, make sure your battery is securely locked in place:
Hold the battery firmly with one hand.
Use your other hand to turn the release switch to secure it.
Pull up slightly to test if it’s locked — this helps prevent theft or falls while riding.
We hope this guide makes your battery care easier and your rides more enjoyable. Got questions? Our KINGBULL support team is here for you anytime.
Stay charged. Stay safe. Ride KINGBULL.
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Kingbull News
Kingbull Unveils Trekker: A High-Spec Urban Commuter and Final Chapter in the Forge Series
Kingbull, the fat tire electric bike expert, today officially announced the release of Trekker, the final model in its high-performance Forge Series. Designed with practical commuting in mind, the Trekker combines everyday usability with elevated components and riding comfort. Pre-orders are now open at a launch price of $1,799 — up to $500 less than comparable commuter e-bikes with similar high-end configurations.
Premium Braking and Shifting, Built for Everyday Confidence
For urban riders navigating variable traffic and road conditions, reliable braking and smooth shifting are essential. Trekker comes equipped with the Tektro HD-E3940 4-piston hydraulic disc brake system, paired with 180mm rotors on both front and rear wheels. This high-performance setup ensures powerful, consistent braking even in wet weather or steep descents—significantly outperforming traditional 2-piston systems in terms of modulation and durability.
The bike also features a Shimano 8-speed derailleur system, offering precise gear changes and exceptional drivetrain reliability. Whether climbing city overpasses or cruising through congested bike lanes, the Trekker delivers a smooth, responsive experience, positioning it well above standard commuter bikes in its class.
Long-Range Battery and Smart Torque Sensing
At the heart of Trekker is a Samsung 48V 20Ah integrated battery, enabling a real-world range of up to 80 miles (128 kilometers) on pedal-assist level 1. Powering the ride is a Bafang G062 750W rear hub motor, delivering 85Nm of peak torque, ideal for city hills and loaded trips.
Complementing this setup is a torque sensor, which responds to the rider’s pedal force in real time—resulting in more natural acceleration, reduced battery consumption, and a smoother ride.
Commuter-Ready Design Meets Daily Versatility
The Trekker is built around a low-step aluminum alloy frame, making it easy for riders of all sizes to mount, especially in urban stop-and-go scenarios. Comfort is enhanced by an 80mm front suspension fork, softening uneven pavement and speed bumps during everyday rides.
The bike is fitted with Kenda 20"x4.0" puncture-resistant fat tires that include integrated reflective sidewalls, removing the need for separate reflectors while increasing nighttime visibility without sacrificing aesthetics.
Lighting and alert systems are also thoughtfully integrated, with a 48V LED headlight, tail light, and electronic horn to ensure safety in low-visibility conditions and heavy traffic.
Closing Out the Forge Series: Designed for Everyday Utility
Trekker joins the Forge family as its final chapter, following the launches of the EX Titan (full-suspension trail bike), Jumper Go (urban mid-suspension), and Verve (folding commuter). It stands out as the most balanced commuter-focused build, combining premium parts with practical geometry.
To support riding needs, Kingbull will begin rolling out upgraded service and test-ride centers across the U.S. starting in May. This expansion is backed by a multi-million dollar investment aimed at elevating customer experience and post-purchase support.
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Purchase Guide
Make Her Day Extraordinary: Mother's Day Special Deals Inside!
Remember those sweet childhood moments? Maybe not the exact click of the bike chain on your mom’s bike, but the feeling of her energy and enthusiasm as you explored the neighborhood together. Those rides weren’t just about getting from point A to B—they were about joy, connection, and love on two wheels.
With Mother’s Day just around the corner, flower shops are buzzing and restaurant reservations are disappearing fast. But this year, why not break away from the ordinary? Instead of racing to grab a table, cook her favorite meal, set the table with love, and share a heartfelt dinner together. Then, take things up a notch—with the surprise of an electric bike.
More Than a Gift—A Whole New Experience
Gifting your mom an e-bike isn’t just about the ride—it’s about giving her freedom, joy, and precious time to rediscover herself. Imagine her smile as she unwraps this thoughtful gift. Picture her gliding along sunlit paths, feeling the breeze on her face, the scent of blooming flowers in the air, and the sound of birdsong all around. Whether she’s riding through a quiet neighborhood at dawn or meeting up with friends at the local park at sunset, her e-bike becomes a companion on a journey filled with new memories and well-deserved peace.
If your beloved has just become a mother, this gift takes on an even deeper meaning. It marks the beginning of a new chapter—one where health, happiness, and vitality take the front seat. It’s not just a bike; it’s a promise of time for herself.
E-Bikes Made with Her in Mind
Our carefully curated collection of e-bikes is designed to make every ride smooth, stylish, and safe. From sleek step-through frames to ergonomic seats for maximum comfort, we’ve thought of everything. Whether she’s new to cycling or already a road warrior, our bikes make it easy to enjoy the ride with confidence and grace.
And if your mom is the adventurous type—the fearless explorer who finds joy tearing through trails and embracing the wild—we’ve got something for her too. Our off-road models are built to fuel her spirit and keep her rolling wherever adventure calls
Mother’s Day Specials
💸 $100 Off select e-bike models – automatically applied at checkout
🚴 Early-Bird Discounts on our premium upgraded models
🛍️ 10% Off all e-bike accessories – complete her ride in style
Let’s celebrate every amazing mom with the gift of wellness, adventure, and freedom. More than anything, remember—the most meaningful gift you can give is your time, your love, and the words:
"Thank you for everything."
Ready to make this Mother's Day unforgettable?Shop Now and Surprise Her with the Ride of a Lifetime »
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Kingbull News
Introducing the KINGBULL Trekker: Redefining Everyday Riding with Comfort and Power
Between bustling city streets and quiet suburban trails lies a perfect pace — relaxed, effortless, and refined. That’s the experience we designed the Trekker for. Our newest 26-inch step-thru electric bike blends premium performance with everyday ease, making it the perfect companion for modern riders who value both style and substance.
Power Beneath the Elegance
The Trekker is more than just good looks — it's engineered for real performance:
Bafang 750W motor for strong acceleration and easy hill climbing
Samsung 48V 20Ah battery with a range of up to 80 miles on a single charge
Full-color LED display for real-time ride data and assist control
Tektro 4-piston hydraulic brakes for confident stopping, rain or shine
It’s not just an e-bike — it’s a smart, capable machine built to move with you, wherever you go.
Comfort You Can Feel, Quality You Can Trust
Thanks to the ZOOM front suspension fork, the Trekker absorbs bumps and road vibrations for a noticeably smoother ride. And with an upgraded breathable comfort saddle, you’ll enjoy long-distance rides without fatigue or discomfort.
From daily commutes to weekend adventures, the Trekker is designed to make every ride feel effortless — and enjoyable.
Not Just a Bike — A Lifestyle Upgrade
Trekker isn’t about getting from point A to point B. It’s about how you get there.It’s about riding in comfort, arriving with style, and enjoying every mile in between.
This bike is for those who value freedom, exploration, and simplicity — all without sacrificing performance.
The KINGBULL Trekker: Built for Riders Who Want More From Every Ride
Explore more. Commute smarter. Cruise in style.Trekker is here — and it’s ready to redefine how you move.
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Kingbull News
Kingbull Unleashes the Most Powerful Full-Suspension Street-Legal eMTB – BAFANG-Powered EX Titan with 128-Km Range
KINGBULL, the fat tire electric bike expert, proudly introduces the EX Titan, the most powerful model in its lineup and the latest addition to the Forge Series — a new high-end range built to push the limits of technology and rideability. Powered by BAFANG, armed with full suspension, and engineered for extended range, the EX Titan is Kingbull’s ultimate trail-and-street conqueror.
Full Suspension Meets Maximum Street-Legal Power
Engineered around a 4-bar full suspension system, the EX Titan delivers premium comfort and stability whether you're tackling mountain trails or pothole-ridden urban streets. The front is equipped with a ZOOM 879DH hydraulic spring fork offering 80mm of travel, while the middle features a DNM AO-38RC air shock with 50mm travel — an elite combination reserved for powerful mountain bikes.
At its heart is the BAFANG G062 hub motor, delivering up to 85Nm of torque（80Nm typical) while maintaining Class 3 road legality (adjustable to Class 2). Coupled with a Samsung 960Wh lithium battery, riders can expect up to 80 miles (128 km) on a single charge, making it ideal for both long-range adventure and demanding daily rides.
Unlike most e-bikes that use 2-piston systems, KINGBULL equips the EX Titan with 4-piston hydraulic disc brakes for significantly stronger and smoother braking. This setup is not only more durable but also easier to maintain—giving riders more confidence and control on every ride.
EX Titan Technical Specifications
Frame & Series: 4-Bar Linkage, Step-over frame, all aluminum, part of Kingbull’s new Forge Series
Suspension: ZOOM 879DH coil spring front fork (80mm), DNM AO-38RC air rear shock (50mm)
Motor: BAFANG G062 750W hub motor, 85Nm torque (80Nm typical)
Battery: Samsung 48V 960Wh lithium battery
Range: Up to 80 miles (128 km)
Brakes: Tektro HD-E3940 4-piston hydraulic brakes, 180mm discs
Drivetrain: Shimano 8-speed system
Tires: Kenda 20"x4.0" puncture-resistant fat tires
Sensor: Torque Sensor
Display: KB35H color display, torque sensor
Lighting: 48V LED front and taillights with integrated horn and brake light
Class: Street-legal Class 3 (adjustable to Class 2)
What’s It For?
The EX Titan is designed for those who demand more — more power, more comfort, more range. Whether you're navigating rugged mountain trails or enduring long city commutes, this full-suspension Class 3 eMTB brings the best of both worlds: trail-ready toughness and street-legal compliance. Its 85Nm BAFANG motor, dual-suspension setup, and 80-mile range make it ideal for performance-focused riders, heavier users, or anyone seeking maximum riding confidence.
“At KINGBULL, we created the Forge Series to push the boundaries of what an electric bike can offer,” said the Kingbull spokesperson. “The EX Titan is our answer to riders asking for full-suspension capability without sacrificing street legality, comfort, or battery life. It’s a new benchmark for versatility — and a bold step forward in our commitment to giving every rider more choices at the top end.”
Pre-Orders Begin, Rides Start in May
EX Titan is now open for pre-order at a special launch price of $1,999 (MSRP $2,599). The bikes will begin shipping by June, and Kingbull's plans to invest $10 million in a nationwide test ride and service network to provide better service, with riders able to test ride the service at their nearest bike store after June.
The EX Titan will be available in a green and black gradient color through Kingbull's online store and authorized dealers.
The new Forge Series, led by EX Titan, extends that vision by offering high-performance, full-suspension models built with industry-leading technologies. With state-of-the-art components and an eco-conscious mindset, Kingbull inspires riders to break the mold and unleash the joy, staying true to the brand’s belief:
Your Ride. Your World. Your Way.
For more information, visit https://www.kingbullbike.com/ or contact 213-588-4335.
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