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The EUNORAU FLASH 2.0 is a full-suspension, moped-style fat tire e-bike built around a 52V 1000W Truckrun mid-drive motor with 220 N·m of torque. Its center-mounted drive keeps the center of gravity stable for balanced handling, and high-sensitivity torque and speed sensors give precise control.
FLASH comes with three battery options. Start with the standard 52V 16Ah battery for up to 65 miles, add a 52V 21Ah top-tube battery for up to 135 miles, or add a 52V 17Ah down-tube third battery for up to 220 miles (354 km) on pedal assist 1, making it one of the longest-range e-bikes in the industry. An 80mm EXSHO fork, dual rear spring suspension, 20" × 4.0" tires, 4-piston hydraulic brakes, a Shimano 8-speed drivetrain and a long two-up saddle complete the package.
Key Features
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Longest-range e-bike: Three battery options let you add a second or third battery; with all three on board the FLASH is rated for up to 220 miles (354 km) on pedal assist 1.
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Powerful, stable mid motor: The center-mounted drive keeps the bike balanced and stable, with strong waterproofing, low noise, and high-sensitivity torque and speed sensors for precise control.
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EXSHO STRONG-DH fork: 80mm of travel with compression adjustment and lockout absorbs jarring bumps on rugged routes, reducing fatigue and letting you ride faster.
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Dual rear spring suspension: 45mm of travel from twin rear springs adds comfort for rider and passenger.
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Sunlight-readable display: A dark background with bright numerals, waterproof connectors, battery life, speed and distance readouts, and a push mode for walking the bike uphill.
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EUNORAU GO app: Sync your ride with the app for calorie tracking, trip records, social sharing and OTA updates.
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4-piston hydraulic disc brakes: 180mm rotors give sensitive, efficient and ample stopping force you can rely on in harsh conditions.
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Battery-powered headlight: Switched from the handlebar control pad and bright enough to make night riding safer and more enjoyable.
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Plush two-up saddle: The long saddle fits a single rider or a companion for a laid-back cruise, and the 1000W motor handles the extra weight of a passenger with ease.
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Shimano 8-speed drivetrain: An 8-speed derailleur works seamlessly with the motor thanks to integrated shift detection.
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Integrated automatic taillight: The taillight blends into the battery box for a clean look and lights automatically when braking, even when not switched on.
Compare the FLASH family
All FLASH models share the 52V 16Ah standard battery with optional 52V 21Ah second and 52V 17Ah third batteries, and a 20 MPH unlockable top speed.
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FLASH 2.0: 52V 1000W mid-drive motor, 220 Nm max torque, Shimano 8-speed thumb shifter, 80mm travel front fork plus 45mm travel dual rear spring suspension
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FLASH AWD 1.0: Dual 52V 750W hub motors, 184 Nm max torque, single-speed, 80mm front suspension fork, no rear suspension
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FLASH LITE 2.0: 52V 750W rear hub motor, 92 Nm max torque, single-speed, 80mm front suspension fork, no rear suspension
Suitable For:
- Long-distance touring
- Riding with a passenger
- Commuting
- Mixed pavement and light trails
- Sand, snow and loose surfaces on 4.0" fat tires
Please Note: Page highlights list Class 3, speed limited, unlockable; spec table lists maximum speed 20 MPH (20 MPH unlockable in the comparison table).
Please Note: 220-mile range requires all three batteries and is rated on pedal assist 1.
Please Note: Second (52V 21Ah top tube) and third (52V 17Ah down tube) batteries are optional.
Please Note: UL certified (per page highlights).
Also available as: FLASH AWD 1.0 | FLASH LITE 2.0
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Specifications
Electronics
Battery: 52V 16Ah standard (optional: top tube 52V 21Ah / down tube 52V 17Ah)
Range: Up to 65 miles (135 miles dual battery | 220 miles triple battery)
Motor: 52V 1000W Truckrun mid-drive motor with 220 N·m torque
Total Payload Capacity: 440 lbs
Recommended Rider Heights: 5'2" ~ 6'4"
Maximum Speed: 20 MPH
Charger: US standard 4.0A smart charger
Controller: 52V
Display: BC281 LCD display
Weight: 82-92 lbs
Pedal Assist: 0~5 level pedal assist
Components
Tires: CST 20" x 4.0"
Brakes: Hydraulic disc brakes
Brake Lever: EUNORAU brake lever with motor cutoff switch
Brake Rotor: EUNORAU 180mm front and rear
Rear Light: Yes
Shifter: SHIMANO 8-speed thumb shifter
Throttle: Thumb throttle
Spokes: Stainless steel
Crank: 170mm forged alloy
Cassette: 44T / 36T
Front Fork: EXSHO STRONG-DH 80mm travel fork
Rear Shock: EUNORAU 45mm travel double rear spring suspension
Pedal: High quality aluminum pedals
Frame: Aluminum alloy 6061, 20 inch
Front Light: Yes
Saddle: JUSTGK saddle
Tool: Included
Rims: 20 inch black alloy wheels
Fender: Optional
E-Bike Class: Class 3, speed limited, unlockable (per page highlights)
UL Certified: Yes
Geometry & Sizing
Recommended rider height 5'2" ~ 6'4". Seat height 840mm / 33.1in, stand-over height 780mm / 30.7in.
| Measurement |
Value |
| A: Head tube length |
160mm / 6.3in |
| B: Handlebar height |
1080mm / 42.5in |
| C: Reach |
280mm / 11in |
| D: Seat height |
840mm / 33.1in |
| E: Stand-over height |
780mm / 30.7in |
| F: Wheelbase |
1090mm / 43in |
| G: Total length |
1740mm / 68.5in |
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BC281 Display Manual (FLASH)
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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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