China eBike 
16-Inch vs. 20-Inch Folding E-Bikes: How Wheel Size Affects Ride and Portability
Compare 16-inch and 20-inch folding e-bike wheel sizes for storage, carrying, comfort, handling, rider fit, and daily commuting.
The knowledge base
Stories for a
smarter ride.
Twenty deeply researched guides spanning e-bike technology, buying decisions, regulation and China's global supply chain.
18650 vs. 21700 E-Bike Battery Cells: What Pack Specifications Really Reveal
Learn what 18650 and 21700 cell formats reveal about e-bike battery layout, energy, current limits, heat, and supplier documentation.
36V vs. 48V E-Bike Systems: What Voltage Changes—and What It Doesn’t
Understand how 36V and 48V e-bike systems affect current, compatibility and design choices, without confusing voltage with range or capacity.
Are Motor-Gearbox Units the Next E-Bike Drivetrain?
Pinion’s production MGU and Avinox’s 2026 MG Concept show why integrating motor and transmission could reshape e-bike drivetrains, maintenance and frame design.
Avinox and the New High-Power E-Bike Motor Race
Avinox has pushed premium e-bike motors toward higher torque and peak output. Here is what M1, M2 and M2S reveal about the next phase of e-bike drive-system competition.
Avinox MG Concept: What Is Officially Confirmed About the E-Bike System?
A clear guide to what Avinox has confirmed about the MG Concept Motor, what remains unknown, and how it differs from existing Avinox systems.
Buying E-Bikes Directly From China: A Practical Quality, Compliance and Supplier Checklist
A practical guide for brands and professional buyers sourcing e-bikes from China, covering OEM/ODM selection, samples, batteries, compliance, QC, shipping, change control and after-sales support.
Cargo E-Bikes in 2026: Longtail vs Short-Tail and What Buyers Actually Need
A practical 2026 cargo e-bike guide covering longtails, compact cargo bikes, payload, batteries, motors, brakes, passenger carrying and real-world buying priorities.
China Is Regaining Share of EU E-Bike Imports: What the 2024–2026 Data Shows
EU e-bike import data shows China regaining volume share in 2025 and 2026. Here is what changed, how China compares with Taiwan and what the numbers mean for suppliers.
China’s New E-Bike Safety Rules: GB 17761-2024 and GB 43854-2024 Explained
A plain-English guide to China’s updated electric bicycle and lithium-ion battery standards, including anti-tampering, fire safety, braking, weight and traceability implications.
Commuter E-Bike Buying Guide: Motor, Battery, Brakes, Comfort and Security
A practical commuter e-bike buying guide focused on daily reliability, realistic battery range, motor choice, brakes, comfort, racks, lights and service support.
DJI Avinox MGU Explained: How to Read the Drive System’s Specifications
Learn how to separate DJI Avinox drive-unit, battery, software and complete-bike specifications when comparing Avinox-equipped e-bikes.
DJI Avinox MGU vs. Conventional Mid-Drive Systems: Integration, Interfaces and Serviceability
A practical Avinox MGU comparison covering mid-drive architecture, drivetrain integration, workshop interfaces and limits of official specifications.
E-Bike Battery BMS Explained: Cell Balancing, Protection Cutoffs and Faults
Understand what an e-bike battery BMS monitors, how balancing and protection cutoffs work, and how to approach common battery fault symptoms safely.
E-Bike Battery Capacity Explained: 400Wh vs 500Wh vs 625Wh vs 800Wh
What watt-hours mean, how battery size affects range and weight, and how to choose between 400Wh, 500Wh, 625Wh and 800Wh e-bike batteries.
E-Bike Battery Charger Compatibility: How to Check Voltage, Current, Connector, and Polarity
Learn how to match an e-bike replacement charger by checking charging voltage, current limits, connector pins, polarity, and maker guidance.
E-Bike Battery Compatibility: How to Check Voltage, Connectors, Fit and BMS Communication
Learn how to verify e-bike battery compatibility by checking voltage, connectors, fit, charger requirements and possible BMS communication.
E-Bike Battery Safety in the U.S.: UL 2849, UL 2271 and What Importers Need to Know
A practical guide to UL 2849, UL 2271, lithium-ion battery safety, CPSC enforcement signals and the questions e-bike importers should ask suppliers.
E-Bike Belt Drive vs. Chain: Maintenance, Efficiency, and Gear Compatibility
Compare e-bike belt drives and chains for maintenance, cleanliness, gearing, efficiency, repair access, and frame compatibility.
E-Bike Brake Cutoff Sensors: How They Work and How to Diagnose Faults Safely
Learn how an e-bike brake cutoff sensor stops motor assist, how to identify a likely fault, and why it must be restored before riding.
E-Bike Laws Explained: EU 250W/25km/h, U.S. Classes and Why Power Ratings Cause Confusion
A comparison of major EU and U.S. low-speed e-bike definitions, including the EU 250W/25km/h pedelec rule and the U.S. three-class model.
E-Bike Motor IP Ratings Explained: What Water and Dust Resistance Really Means
Learn how to read an e-bike motor IP rating, what its dust and water tests cover, and why it does not define whole-bike weather resistance.
E-Bike Motors Explained: Hub vs Mid-Drive and How to Choose
A practical guide to hub-drive and mid-drive e-bike motors, covering efficiency, ride feel, maintenance, cost, torque, gearing, and the use cases each system suits best.
E-Bike Payload Capacity Explained: Rider, Cargo and Rack Limits
Learn how to compare e-bike payload capacity, maximum system weight and rack limits before carrying riders, cargo or accessories.
E-Bike Peak Power and Legal Classes: What Importers and Riders Need to Check
Why an e-bike’s advertised peak watts may not determine its legal class, and what power, speed, pedal and document checks matter.
E-Bike Rated vs Peak Power: How to Read Chinese Motor Specifications
Learn what rated and peak e-bike motor power mean, how Chinese listings use watt figures, and what to check before comparing models or markets.
E-Bike Regenerative Braking: How It Works, Compatible Motors, and Real-World Limits
Understand e-bike regenerative braking, which motor systems can support it, its limits for range, and what to verify in manufacturer documentation.
E-Bike Torque Sensor vs. Cadence Sensor: How Assist Feels and Responds
Understand torque sensor vs cadence sensor e-bike assist, how each responds to pedaling, and which specifications matter before buying.
E-Bike Torque Sensors vs. Cadence Sensors: Ride Feel, Efficiency, and Choosing Between Them
Understand torque vs cadence sensor e-bikes, how each responds to pedalling, and which system may suit your terrain, effort, and riding style.
E-Bike Watts, Torque and Peak Power: Why Motor Numbers Are Easy to Misread
Understand continuous power, peak watts, torque, cadence and gearing so you can compare e-bike motors without being misled by headline specifications.
EU Battery Passport 2027: What E-Bike Brands and Battery Suppliers Need to Prepare
What the EU Battery Regulation’s 2027 battery-passport requirement means for light means of transport batteries, e-bike brands, importers and suppliers.
EU Battery Regulation for E-Bike Imports: An Importer’s Compliance Guide
A practical guide to EU Battery Regulation duties for e-bike importers, including LMT classification, CE marking, labelling, recycling and transport.
EU E-Bike CE Marking: A Document Checklist for Importers
A practical checklist for matching e-bike declarations, test reports and technical files to the exact configuration placed on the EU market.
EU E-Bike Compliance Documents: What Importers Should Request from a Chinese Supplier
A practical guide to checking EU e-bike compliance documents, declarations, standards evidence and technical-file access before import.
EU E-Bike Import Compliance: CE Marking, EN 15194, and Importer Checks
A practical guide to EU e-bike compliance, CE marking, EN 15194, supplier records, battery documents, and importer checks before shipment.
Europe’s E-Bike Market After the Boom: Sales, Prices and the Inventory Reset
European e-bike sales cooled after the pandemic boom, but the market remains structurally larger than in 2019. A data-led look at volume, prices and recovery signals.
Folding E-Bike Portability: How Folded Size, Weight, and Carry Points Affect Everyday Use
Learn how to compare folding e-bike folded dimensions, weight, carry points, and storage routes before choosing a bike for commuting.
Folding E-Bikes: The Trade-Off Between Portability, Range and Ride Quality
How to choose a folding e-bike by balancing folded dimensions, weight, battery capacity, wheel size, motor power, hinge design and real-world portability.
GB 17761-2024 vs. GB 43854-2024: What Each Chinese E-Bike Standard Covers
GB 17761-2024 covers the complete electric bicycle, while GB 43854-2024 addresses its lithium-ion battery cells and packs.
Germany vs the Netherlands: What 2025 E-Bike Market Data Tells Us
Germany and the Netherlands are both mature e-bike markets, but 2025 data shows major differences in scale, retail channels, pricing and demand structure.
How Far Can an E-Bike Go? A Data-Driven Guide to Real-World Range
A practical method for estimating e-bike range using watt-hours, terrain, rider input, assistance level, temperature, speed and motor efficiency.
How Long Does an E-Bike Battery Take to Charge? A Practical Estimate
Estimate e-bike battery charging time using watt-hours, charger output and starting charge level, with practical caveats for tapering.
How to Audit a Chinese E-Bike OEM Before Placing an Order
A practical Chinese e-bike OEM audit framework for verifying factory capability, quality controls, component traceability, compliance evidence, and after-sales support.
How to Check E-Bike Battery Health as Capacity Declines
Learn how to assess e-bike battery health, separate normal range changes from faults, and know when dealer diagnostics are needed.
How to Estimate E-Bike Range for a Specific Route
Estimate e-bike range for a planned route using remaining battery energy, recent Wh-per-distance data, terrain, assist level, weather, and reserve.
How to Evaluate a Chinese E-Bike OEM or ODM Supplier
A practical due-diligence guide for importers assessing Chinese e-bike OEM and ODM suppliers, from factory control to contracts.
How to Evaluate Chinese E-Bike Manufacturers Before an OEM Order
A practical due-diligence framework for assessing Chinese e-bike OEM suppliers, from factory control and components to samples and warranty support.
Hub Motor vs. Mid-Drive E-Bikes for Commuting: Hills, Maintenance and Cost
Compare hub-motor and mid-drive e-bikes for commuting, with practical guidance on hills, maintenance, range, repair access and cost.
Hub Motor vs. Mid-Drive: Which E-Bike Motor System Fits Your Riding?
Compare hub motors and mid-drives for hills, commuting, cargo, handling, drivetrain wear and service before choosing an e-bike.
Inside the China E-Bike Supply Chain: Motors, Batteries, OEM/ODM and Where Value Is Created
How China’s e-bike supply chain works from motors and batteries to frames, final assembly, OEM/ODM development and compliance — and where suppliers can create more value.
LFP vs NMC E-Bike Batteries: How Cell Chemistry Changes Pack Design
Compare LFP and NMC e-bike batteries by energy density, weight, voltage architecture, ageing, safety considerations and pack design.
Lightweight vs Full-Power eMTB: Which System Architecture Makes Sense?
A technical comparison of lightweight and full-power electric mountain bikes, covering motor torque, batteries, total weight, handling, range and rider use cases.
Longtail vs. Front-Loader Cargo E-Bikes: Which Layout Fits Your Loads?
Compare longtail and front-loader cargo e-bikes for children, bulky goods, handling, storage, parking, and loaded everyday riding.
Removable vs. Integrated E-Bike Batteries: Charging, Security and Service Tradeoffs
Compare removable and integrated e-bike batteries for home charging, theft exposure, weather protection, replacement access and service.
Torque Sensor vs Cadence Sensor: Which E-Bike Assist Feels Better?
Understand torque sensor vs cadence sensor e-bike assist, how each responds to pedaling, and what to compare before buying.
UN 38.3 for E-Bike Batteries: What Importers Should Verify Before Shipping
A practical guide to checking UN 38.3 test summaries, shipment details, and the limits of transport compliance for e-bike batteries.
UN 38.3 for E-Bike Batteries: What Importers Should Verify Before Shipping
A practical guide to checking UN 38.3 evidence for e-bike batteries, matching documents to packs, and preparing for mode-specific transport rules.
UN 38.3 for E-Bike Battery Imports: What the Test Summary Proves
Learn what a UN 38.3 e-bike battery test summary supports for transport, how to match it to a shipment, and what it does not prove.