SPECIFICATIONS

🔥 SUR-RON ULTRA BEE — FULL-SPEC ELECTRIC ENDURO WEAPON 🔥

The Ultra Bee is Sur-Ron’s mid-size electric enduro platform, positioned between the Light Bee X and the Storm Bee — delivering 250cc-class gas bike performance in an 85kg package with zero emissions, zero clutch, and near-zero maintenance.

⚡ POWERTRAIN — MID-DRIVE ARCHITECTURE

• Motor: 21kW (28HP) peak PMSM (Permanent Magnet Synchronous Motor), mid-mounted for centralized mass and optimal front/rear weight distribution (50/50)
• Nominal output: 12.5kW continuous
• Torque: 82Nm at the motor shaft — 440Nm at the rear wheel through the reduction drive
• Primary reduction: Helical gear primary → 520 O-ring chain final drive (regular sprocket ratios swappable for top speed vs. climb gearing)
• Controller: FOC (Field-Oriented Control) sine-wave controller, 74V system, app-configurable parameters
• Ride modes: 3 selectable maps (Eco / Standard / Sport) + reverse assist mode for tight trail maneuvering
• Throttle: Hall-effect twist throttle, no clutch, no gearbox — single-speed direct torque delivery from 0 RPM
• Regenerative braking: Adjustable regen on throttle release

🔋 ENERGY SYSTEM

• Battery: 74V 60Ah = 4.44kWh integrated lithium-ion pack (20S configuration, 84V full charge, ~60V cutoff)
• Cells: High-discharge cylindrical NCM cells with full BMS protection — overcharge, over-discharge, short circuit, temperature monitoring, cell balancing
• Removable pack: Tool-free quick-release, charge on or off the bike (~pack weight 20kg)
• Range: 115km at steady 50km/h; 60-75km mixed trail; 40-50km aggressive enduro pace
• Charging: Standard 10A charger = ~4.5h; fast charger option = ~2.5h; charge port supports up to 84V CC/CV
• Consumption: roughly 38-70Wh/km depending on terrain and pace

🏍️ CHASSIS & GEOMETRY

• Frame: Forged + extruded 6061-T6 aluminum alloy twin-spar, powder-coated
• Swingarm: Cast aluminum with linkage-driven rear suspension
• Wet weight: ~85kg (187lb) including battery — 30-40kg lighter than comparable 250cc gas enduros
• Seat height: ~910mm | Wheelbase: ~1,450mm | Ground clearance: ~305mm
• Max load: 120kg

🔧 SUSPENSION — FULLY ADJUSTABLE

• Front: Inverted (USD) coil-spring fork, ~230mm travel, adjustable compression & rebound damping
• Rear: Linkage mono-shock, ~240mm wheel travel, adjustable preload, compression & rebound
• Tuned for enduro-style riding: rock gardens, whoops, drops, and jumps

🛞 WHEELS, TIRES & BRAKES

• Wheels: 19″ front / 19″ rear, aluminum rims, stainless spokes (18″ rear conversion popular for wider tire selection)
• Tires: 90/90-19 (front) / 110/80-19-class off-road knobbies, tube type
• Brakes: 4-piston hydraulic calipers, 240mm+ discs front and rear, sintered pads, braided lines — full hydraulic system (not cable-actuated)

📊 PERFORMANCE FIGURES

• Top speed: 95km/h (electronically managed)
• 0-50km/h: ~3 seconds
• Hill climb: 45°+ gradient capability on loose surfaces
• IP rating: IP67-rated battery and controller — water crossings and mud are fair game
• Operating temp: -20°C to +55°C

🖥️ ELECTRONICS & FEATURES

• Full-color LCD dash: speed, battery %, voltage, mode, odometer, fault codes
• App connectivity for parameter tuning, diagnostics, and firmware
• LED lighting package: headlight, tail/brake light, optional signals
• USB accessory port | Keyed ignition + battery lock
• DC-DC converter onboard for 12V accessory circuit

✅ WHY IT BEATS GAS

• No oil, filters, valves, carbs, clutch plates, or exhaust packing — service is chain, brakes, and tires
• Operating cost: ~$0.50 of electricity per full charge vs. $10+ in premix/fuel
• Instant 100% torque at 0 RPM — out-climbs gas bikes that need clutch-feathering
• Silent running = ride at hours and locations where gas bikes get banned

📦 ORDERING

• MOQ: 1 pc — volume pricing available
• Origin: Jiangsu, Mainland China
• Compatible with standard Sur-Ron aftermarket ecosystem: sprockets, suspension upgrades, seats, guards

Camytrade International — Toronto’s electric mobility specialists since 2000
Sales • Service • Battery Repair • Parts