E11EVEN DRAGONFLY
57.0 lb nimble commuter with 50.2 lb battery-removed lift weight, dual torque + cadence sensing, and full hydraulic disc brakes.
Get both UL 2849 certified e-bikes for $1,844 total (Combined MSRP + Code E112 Savings: $554 OFF).
Checkout 2-Bike Bundle with Code E112 ($1,844)- Riders lifting onto 2-bike SUV hitch racks (50.2 lbs without battery)
- Apartment dwellers & campus commuters navigating stairs or elevators
- State park & multi-use path riders requiring strict Class 2 (20 MPH) compliance
- Riders upgrading from mechanical-brake budget bikes to true torque sensing + hydraulic brakes under $900
Transparent Terms: 14-day return window (≤10 odometer miles, original Vista, CA carton). Report carrier transit damage within 48 hours of delivery to support@e11evenbike.com for free replacement dispatch.
Inspect Every Weld, Caliper & Drivetrain Tooth on DRAGONFLY
Unretouched studio macro photography from our raw optical archive—showing real Shimano, Kenda, and hydraulic hardware.
DRAGONFLY: four systems, one scroll
350W planetary hub that answers your legs, not a timer
The torque sensor reads how hard you press and adds power in proportion. Switch to cadence mode for easy cruising.
Key out the pack. The bike gets 6.8 lb lighter.
Complete curb weight with UL 2271 pack installed
Hydraulic calipers, one-finger stops
Hydraulic Disc Brakes with 180mm Stainless Rotors & Motor Cutoff. 60mm Hydraulic Lockout Suspension Fork (480mm Height, 42mm Offset).
Illustrative physics model, not an E11EVEN lab test: stopping distance d = v²/2a from 20 mph, assuming 0.55 g sustained deceleration for hydraulic and 0.42 g for typical cable discs, reaction time excluded.
55 lb rack, 300 lb payload, 2 years of shop labor
SYSTEM
BATTERY
2-YR LABOR
Hear the tonal character of a planetary gear hub
Synthesized in your browser to illustrate tonal character. The gear-mesh pitch follows your selected speed and the 27.5" wheel. This is not a recording or a decibel measurement.
Continuous orbit through all 5 calibrated studio plates under a moving California sun. Freezes in Calm mode.
DRAGONFLY Technical Specifications & Frame Geometry
Defaults to US Imperial (inches) with instant Metric (mm) toggle. Extracted verbatim from E11EVEN engineering blueprints.
| Powertrain, Battery & Chassis Specifications | |
|---|---|
| Motor Output | 350W Nominal (564W Peak) · 52 Nm Torque |
| Battery Pack | 48V 10Ah (480Wh) UL 2271 Certified Removable Pack |
| Charger & Charge Time | 54.6V 3.0A Fast Charger (0–100% in ~3.5 Hours) (3.5 hrs) |
| Pedal Assist Sensor | Dual Sensor (Torque + Cadence Switchable) (5-Level PAS + Thumb Throttle) |
| Top Speed & Class | Class 2 (20 MPH Top Speed — 100% Multi-Use Trail & Campus Legal) |
| Real-World Range | 32–55 Miles (Up to 55 Miles Eco) |
| Drivetrain | Shimano 7-Speed Tourney + KMC Z7-RB Anti-Rust Chain |
| Braking System | Hydraulic Disc Brakes with 180mm Stainless Rotors & Motor Cutoff |
| Front Suspension | 60mm Hydraulic Lockout Suspension Fork (480mm Height, 42mm Offset) |
| Tires | Kenda Kwick Seven.5 27.5" x 2.1" Commuter Tires |
| Lift Weight / Curb Weight | 50.2 lbs (Battery Removed) / 57.0 lbs (25,855g) Complete |
| Payload & Rear Rack | 300 lbs Max Total Payload · 55 lbs Rear Rack |
| Safety Certifications | UL 2849 (Full System) & UL 2271 (Battery) by ACT Lab LLC |
| Warranty Coverage | 2-Year Parts + 2-Year Repair Labor + 2-Year Shipping (Appendix A) |
| Code | Frame Geometry Dimension | Selected Unit | Reference (mm / in) |
|---|---|---|---|
| A | Seat Tube Length | 17.5 in | 445 mm / 17.5 in |
| B | Seat Tube Angle | 72.5° | 72.5° / 72.5° |
| C | Head Tube Length | 5.9 in | 150 mm / 5.9 in |
| D | Head Angle | 68° | 68° / 68° |
| E | Effective Top Tube | 24.6 in | 625 mm / 24.6 in |
| F | Bottom Bracket Height | 11.5 in | 291 mm / 11.5 in |
| G | Bottom Bracket Drop | 2.4 in | 60 mm / 2.4 in |
| H | Chainstay Length | 17.9 in | 455 mm / 17.9 in |
| I | Fork Offset (Rake) | 1.7 in | 42 mm / 1.7 in |
| J | Wheelbase | 45.4 in | 1,153 mm / 45.4 in |
| K | Frame Reach | 16.8 in | 426 mm / 16.8 in |
| L | Frame Stack | 24.8 in | 631 mm / 24.8 in |
| M | Recommended Rider Height | 5'3"–5'11" | 160–180 cm / 5'3"–5'11" |
| N | Frame Size | Medium / 17 in | Medium / 432 mm / Medium / 17 in |
| O | Fork Travel | 2.4 in | 60 mm / 2.4 in |
| P | Fork Height (Axle-to-Crown) | 18.9 in | 480 mm / 18.9 in |
Genuine Parts & Accessories Guaranteed to Fit DRAGONFLY
Every part below is verified compatible with the DRAGONFLY chassis and ships directly from 2485 Coral St, Vista, CA.
SR Suntour NCX Suspension 30.9mm Seatpost
Tektro E10.11 Brake Pads
Alloy MTB Pedals
Alloy Pedals
KMC Z7-RB 7 speed chain | Wingman & Dragonfly
54.6V, 3A Charger | Defiant & Dragonfly
Cable Management Wrap
E11EVEN Dragonfly Independent Road Test & Hill Climb Review
Watch independent real-world hill climbing, braking modulation, cockpit ergonomics, and acoustic motor testing on the E11EVEN DRAGONFLY.
Order DRAGONFLY Today ($879)