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The FLASH LITE ST combines an accessible step-through frame with a powerful 750W rear motor and 52V 16Ah battery. An optional dual-battery setup extends the range up to 100 miles under ideal conditions.
Its 60mm suspension fork, 20" x 4.0" CST fat tires, and hydraulic disc brakes deliver a smooth, confident ride. A Bluetooth display and coordinated brown saddle, grips, and tire sidewalls complete its smart retro-modern design.
Key Features
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52V 750W rear hub motor: 92 N.m of torque for smooth acceleration and consistent city performance; the brushless design is quiet and low-maintenance.
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Step-through frame: 6061 aluminum alloy step-through frame for easy mounting, fitting riders from 4'8" to 6'4".
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Up to 100 miles: 52V 16Ah LG-cell battery with an optional 52V 17Ah secondary battery through a dual-input battery switcher.
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Suspension fork with lockout: 60mm of travel with compression adjustment and lockout.
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Plush extended saddle: Wide, cushioned saddle for longer rides, with room for a passenger when needed.
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Four-piston hydraulic brakes: 180mm front and rear rotors with motor cut-off brake levers.
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20 x 4.0 inch CST fat tires: Stable, cushioned ride on pavement, gravel and sand, with brown sidewalls that match the saddle and grips.
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BC182 Bluetooth display: Shows speed, battery level and pedal-assist setting, with EUNORAU GO app support.
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Selectable e-bike class: Class 1/2/3/3C/4 configurations, Class 2 by default.
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Integrated lighting: Round LED headlight and a rear light built into the main battery case.
Powerful & Stable Rear Hub Motor
The 52V 750W rear hub motor powers this e-bike with smooth acceleration and consistent performance for city rides. Rear-drive placement enhances stability and traction on urban streets, while the brushless design ensures quiet, low-maintenance operation. Reliable and efficient, it makes daily commuting both practical and enjoyable.
Suspension Fork with Lockout
The front suspension fork features 60mm of travel, compression adjustment and lockout. It effectively absorbs most of the jarring bumps and shocks, especially on complicated and rugged routes, reducing your tiredness and allowing you to ride faster.
Plush Extended Saddle
A plush extended saddle gives the FLASH LITE ST superior comfort and versatility for city commuting. Its wide, cushioned design offers relaxed seating for longer rides and extra room for a passenger when needed. Durable and stylish, this saddle keeps every journey smooth, supportive, and enjoyable.
Stitched Comfort Grips
Brown leather-style grips feature detailed stitching for a comfortable, secure hold. Their vintage-inspired finish coordinates with the matching saddle.
Bluetooth Smart Display
The BC182 LCD display keeps your speed, battery level, pedal-assist setting and essential ride information easy to see. Built-in Bluetooth connectivity supports the EUNORAU GO app for a smarter riding experience.
20" x 4.0" CST Fat Tires
Wide 20" x 4.0" CST fat tires provide a stable, cushioned ride across pavement, gravel and sandy surfaces. Brown sidewalls complement the saddle and grips, giving the bike its distinctive retro-modern style.
Bright LED Headlight
A bold round LED headlight provides clear illumination for riding after dark or in low-light conditions. Its distinctive design adds a modern, motorcycle-inspired look to the FLASH LITE ST.
Integrated Rear Light
The rear light is neatly integrated into the main battery case for a clean, streamlined appearance. It improves visibility from behind and helps you feel more confident when riding in traffic or after dark.
Four-Piston Hydraulic Braking
Four-piston hydraulic disc brakes paired with 180mm front and rear rotors deliver smooth, powerful stopping performance. Motor cut-off brake levers instantly interrupt motor power when braking for more responsive control.
Simple Single-Speed Drivetrain
The 36T chainring and 18T freewheel create a straightforward, low-maintenance single-speed drivetrain. It is easy to operate and well suited to relaxed urban rides, commuting and everyday adventures.
At a Glance
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Motor: 52V750W
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Battery: 52V16Ah (2nd battery optional)
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Class: 1/2/3/3C/4, default: 2
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UL Certified: Yes
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Range: Up to 100 miles (dual battery)
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Tire: 20" x 4.0"
Suitable For:
- City commuting
- Relaxed urban rides
- Riders who prefer a step-through frame
- Mixed pavement, gravel, compact dirt and firm sand
- Occasional passenger riding
Please Note: Pedal assist: Class 1/2/3/3C/4, default Class 2. Mode availability and permitted speeds depend on local laws.
Please Note: Range of up to 100 miles requires the optional dual-battery configuration and ideal conditions.
Please Note: Always use the supplied charger and follow the battery safety instructions.
Please Note: Compatible accessories listed on the page: FLASH fender, lampshade, fender and lampshade kit, foot plates pedals set, rear rack for FLASH, basket, mid-position storage basket, 52V21Ah secondary battery for FLASH.
Also available as: FLASH LITE 2.0 | FLASH 2.0 | FLASH AWD 1.0
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Specifications
Performance
Motor: 52V 750W Rear Motor with 92 N.m Torque
Maximum Speed: 20 MPH
Controller: 52V 22A Sine-Wave Controller
Pedal Assist: Class 1/2/3/3C/4, Default: Class 2
Pedal Assist Sensor: 12-Magnet Dual-Hall Sensor
Throttle: Thumb Throttle
Battery and Range
Battery: 52V 16Ah Standard Battery with LG Cells
Optional Battery: 52V 17Ah Secondary Battery
Range: Up to 100 Miles with Dual Battery
Dual-Battery System: Dual-Input Battery Switcher
Charger: Standard 2.0A Smart Charger
Battery Protection: 50A BMS with Discharge Fuse
Display and Connectivity
Display: BC182 Bluetooth LCD Display
App Support: EUNORAU GO App
Frame and Suspension
Frame: 6061 Aluminum Alloy Step-Through Frame
Fork: Suspension Fork
Fork Travel: 60mm
Drivetrain
Drivetrain: Single Speed
Crankset: 36T Chainring with 170mm Forged Alloy Crank Arms
Freewheel: 18T
Chain: KMC
Bottom Bracket: Sealed Cartridge Bottom Bracket for 100mm Shell
Chain Tensioner: Aluminum Chain Tensioner
Pedals: High-Quality Aluminum Platform Pedals
Brakes
Brakes: Front and Rear Four-Piston Hydraulic Disc Brakes
Brake Levers: EUNORAU Brake Levers with Motor Cut-Off Switches
Brake Rotors: 180mm Front and Rear
Wheels and Tires
Wheels: 20-Inch Black Alloy Wheels
Tires: CST 20" x 4.0" Fat Tires
Tire Color: Black Tread with Brown Sidewalls
Inner Tubes: 20" x 4.0" with Schrader Valves
Rim Strips: 20" x 80mm Rubber Rim Strips
Cockpit and Comfort
Handlebar: 720mm Aluminum Riser Handlebar with 215mm Rise and 9 degree Backsweep
Stem: Aluminum Stem, 40mm Extension and 10 degree Rise
Saddle: Extra-Soft Oversized Comfort Saddle
Lighting and Accessories
Front Light: Included
Rear Light: Included and Integrated into the Main Battery Case
Kickstand: Adjustable Side Kickstand
Wiring: Waterproof Electrical Connectors
Tool Kit: Included
Size and Capacity
Bike Weight: 82 lbs
Total Payload Capacity: 440 lbs
Recommended Rider Height: 4'8" - 6'4"
Geometry & Sizing
Recommended rider height: 4'8" - 6'4". Geometry diagram: https://eunorau-ebike.com/cdn/shop/files/FlashLiteSTGEO_ec7057f9-34fe-4283-b33e-a7d40e592e96.jpg?v=1786004690&width=2400
| Measurement |
Value |
| A: Head tube length |
160mm / 6.3in |
| B: Handlebar height |
108mm / 42.5in |
| C: Reach |
280mm / 11in |
| D: Seat height |
800mm / 31.5in |
| E: Stand-over height |
445mm / 17.5in |
| F: Wheelbase |
1090mm / 43in |
| G: Total length |
1740mm / 68.5in |
In the Box
- FLASH LITE ST 1.0 e-bike
- Standard 2.0A smart charger
- Tool kit
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BC182 Display Manual
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How fast can the FLASH LITE ST go?
The FLASH LITE ST has a maximum assisted speed of 20 mph. Available riding modes and speed settings may vary depending on local e-bike regulations.
How far can I ride on one charge?
The standard 52V 16Ah battery provides a practical range for daily commuting and recreational riding. With the optional dual-battery configuration, the maximum range can reach up to 100 miles under ideal conditions.
How does the dual-battery system work?
The optional secondary battery connects through a dual-battery switching system, increasing the available energy for longer journeys. It is ideal for riders who want to travel farther without stopping to recharge.
How long does the battery take to charge?
Using the standard 2A charger, the 52V 16Ah battery typically requires approximately 8-10 hours for a complete charge. Charging time may vary according to the remaining battery level and charging conditions.
Can the battery be removed for charging?
Yes. The battery can be removed and charged indoors, or charged while installed on the bike. Always use the supplied charger and follow the battery safety instructions.
What pedal-assist modes are available?
The intelligent system supports Class 1, Class 2, Class 3, Class 3C and Class 4 configurations, with Class 2 set as the default. Mode availability and permitted speeds depend on local laws.
Is the bike suitable for hills?
The 750W rear motor produces up to 92 N.m of torque, providing strong assistance on inclines. Hill-climbing performance will depend on the gradient, rider and cargo weight, battery level and road conditions.
Why does the bike use a single-speed drivetrain?
The single-speed drivetrain is simple, reliable and easy to maintain. The motor supplies additional assistance when starting or climbing, reducing the need for a conventional multi-speed gear system.
What surfaces can the fat tires handle?
The 20" x 4.0" CST fat tires provide added stability and cushioning on pavement, gravel, compact dirt and firm sand. They are designed for mixed everyday riding but are not a substitute for specialized off-road tires in extreme conditions.
What type of brakes does it use?
The bike features front and rear four-piston hydraulic disc brakes with 180mm rotors. The brake levers include motor cut-off switches that interrupt motor power as soon as braking begins.
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EUNORAU 24-Month+ Limited Warranty
Coverage
- Frame: 10-year limited warranty (replacement or repair)
- Battery: 24 months
- Motor: 24 months
- Electrical components: 24 months
EUNORAU's limited warranty covers manufacturing defects for the original retail purchaser of EUNORAU electric bicycles bought in the U.S. or Canada. It does not cover normal wear and tear or labor costs, and it is not transferable to a subsequent owner.
Warranty Start Date and Registration
For products bought from an authorized EUNORAU dealer, the warranty begins on the original purchase date shown on the purchase invoice or receipt. If proof of purchase can't be provided, the warranty start date is 90 days after the product's manufacturing date, as determined by its serial number. Register your product with EUNORAU promptly after purchase so warranty and after-sales claims can be processed quickly. EUNORAU recommends an inspection by an authorized specialist or dealer after the first year of use. Products used commercially (rental fleets, delivery services, sharing programs) have the standard warranty period reduced by 50%.
Frame Warranty
Covers a replacement or repaired frame only; labor to move parts to a replacement frame is not included. EUNORAU may use scratch-and-dent stock, and frame styles or colors not in stock may be replaced with a compatible style or color. Excluded: corrosion; paint fade, scratches and impact marks; impact damage; non-reversible modification such as drilling or welding; chain guard mounts; and suspension parts.
What Is Not Covered
Ordinary wear and tear (including brake pads, rotors, spokes, grips, shifters, brake cables, casings, tires and tubes, chains, chainrings, cassettes and transmission gears); corrosion from the elements; cosmetic damage or deterioration of the finish; labor for part replacement; damage from accident, abuse, misuse, stunt riding, racing, improper storage, neglect, or exposure to liquids, chemicals, sand or dirt; scratches and dents not caused by EUNORAU; products with a removed or altered serial number or bar code; damage caused by accessories or equipment not furnished or approved by EUNORAU; improper assembly, operation, maintenance or repair that varies from the assembly instructions and manual; external causes such as collision, fire, flood, weather, theft or a blown fuse; using an incompatible or improperly used battery charger; a battery with broken or tampered seals, or used in equipment other than the bike it is specified for; and free gifts or included accessories such as pre-installed racks and fenders.
Shipping Damage
Shipping damage is not covered by the warranty. If you find a problem right after delivery, notify us immediately with photos and/or video of the product and damaged parts, don't use the product, and keep all original packaging.
Visit EUNORAU's Warranty Page to review the complete warranty terms.
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Shipping is typically through freight carriers and the actual shipping time is contingent on your location and the specific warehouse dispatching your order. Please allow for a 1-3 business day processing period before shipment, and an estimated delivery time of up to 7 business days. Your confirmation email will include delivery details and we will send you a tracking number as soon as one is available. If you ordered several separate items, you may receive multiple tracking numbers. Once the item has been shipped, the freight service will contact you to coordinate the date and time of delivery. If you require any special accommodations during delivery please let us know as soon as possible and let the delivery company know when arranging the appointment.
Typically, orders will be dropped off either curbside or outside your front door or garage. It is your responsibility to bring the order inside or to its final destination and to remove any existing items.
Depending on the item, parts may be shipped in multiple boxes, and assembly may be required. When your order is delivered, please check that you have all pieces of the item and that nothing is damaged. If your order is damaged during transit and external damage is visible, note the damage immediately, write it on the delivery documents, take photos and/or videos, and refuse shipment. If there is no visible external damage, accept the package but note “subject to concealed damage” on the delivery documents. Any damage upon delivery needs to be reported within 24 hours of delivery or you may not be eligible for a refund. For additional information on submitting claims, as well as incorrect item exchanges, and replacements, please see our Refund Policy.
For more information about shipping, please visit our complete Shipping Policy.
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Why Shop With Eco Emperor?
At Eco Emperor, our mission is to empower you to lead a sustainable and fun lifestyle with ease and confidence. Whether you're upgrading your outdoor experience or enhancing your eco-conscious journey, here’s why choosing us is a decision you can feel great about:
Expert and Customized Care
Our knowledgeable and friendly team is here to support you every step of the way. We pride ourselves on providing personalized service and swift responses to ensure a smooth and satisfying experience. Our dedicated team is available via phone, email, and live chat to provide you with prompt and helpful support.
Authorized Retailer of High-Quality, Trusted Products from Leading Brands
We partner with the best brands in the industry to bring you reliable, high-quality products. As authorized retailers, we guarantee authenticity and offer full manufacturer warranties on every item. You can trust that our products are built to last and perform efficiently.
Free & Fast Shipping
We know you’re eager to begin your new products or start your next outdoor adventure. That’s why we prioritize quick, reliable, and free shipping to get your orders to you on time and in perfect condition.
Competitive Pricing
We believe that sustainable living should be accessible to everyone. We offer competitive pricing on all our products, so you can enjoy high-quality eco-friendly solutions and outdoor products without breaking the bank.
Choose Eco Emperor for all your outdoor and eco-friendly product needs, and become part of a movement that’s embracing a more sustainable and adventurous lifestyle.
Thank you for supporting a greener, cleaner future, while enhancing your outdoor experiences and powering your adventures.💚
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