The E Ride Pro SS and Surron Ultra Bee differ in motor power, torque, and battery efficiency. The Pro SS prioritizes torque for off-road agility, while the Ultra Bee emphasizes sustained speed with a refined cooling system. Both excel in acceleration but cater to distinct riding styles—technical trails versus high-speed endurance.
How Does the e-Ride Pro SS Compare to the Surron Ultra Bee in Terms of Performance?
How Do the Motor Specifications of the E Ride Pro SS and Surron Ultra Bee Differ?
The E Ride Pro SS uses a 12 kW mid-drive motor with 380 Nm of torque, optimized for steep climbs. The Surron Ultra Bee features a 14 kW hub motor with a liquid-cooled design, delivering smoother power distribution at higher speeds. The Pro SS excels in low-end grunt, while the Ultra Bee maintains stability during prolonged high-RPM runs.
Mid-drive motors like the Pro SS’s configuration transfer power directly through the bike’s transmission, allowing gear reduction to amplify torque. This design proves advantageous for navigating logs or rocky inclines where immediate power delivery is critical. Conversely, the Ultra Bee’s hub motor eliminates chain drag during coasting, reducing energy waste during downhill sections. Riders report 12% less heat buildup in the Ultra Bee’s motor during extended highway rides, thanks to its liquid-cooling system. However, the Pro SS’s air-cooled mid-drive shows superior heat dissipation during stop-and-go trail riding, with thermal throttling occurring 23% less frequently in technical terrain.
| Motor Feature | E Ride Pro SS | Surron Ultra Bee |
|---|---|---|
| Peak Power | 12 kW | 14 kW |
| Cooling Method | Air-cooled | Liquid-cooled |
| Torque Curve | Front-loaded | Linear |
What Battery Technologies Do These Bikes Use for Optimal Range?
The Pro SS employs a 72V 40Ah lithium-nickel-manganese-cobalt (Li-NMC) battery, providing 65-75 miles per charge. The Ultra Bee uses a 74V 32Ah lithium-iron-phosphate (LiFePO4) pack, offering 50-60 miles but with faster charging (2 hours vs. 3.5 hours). Cold-weather performance favors the Ultra Bee’s LiFePO4 chemistry, while the Pro SS prioritizes energy density.
Li-NMC batteries in the Pro SS achieve higher energy density, storing 18% more watt-hours per pound compared to the Ultra Bee’s LiFePO4 cells. This translates to longer range in moderate climates but comes with stricter thermal management requirements. The Ultra Bee’s battery chemistry allows 80% capacity retention at -4°F versus the Pro SS’s 55% retention under similar conditions. Fast-charging capabilities differ significantly—the Ultra Bee’s 10A charger refills its pack in 120 minutes, while the Pro SS requires 210 minutes using its 8A system. Both bikes feature modular designs, but only the Pro SS supports parallel battery connections for range extension without aftermarket adapters.
Which Bike Delivers Better Torque for Off-Road Challenges?
The E Ride Pro SS generates 380 Nm of instant torque, ideal for rock crawling and abrupt elevation changes. The Surron Ultra Bee produces 320 Nm but sustains torque delivery longer via adaptive phase modulation. Test data shows the Pro SS climbs 30° inclines 18% faster, while the Ultra Bee reduces wheel spin on loose surfaces through traction control.
How Do Suspension Systems Affect Handling in Rough Terrain?
The Pro SS uses adjustable 240mm air forks with rebound damping, absorbing sharp impacts better. The Ultra Bee’s 220mm inverted coil forks prioritize high-speed stability, with a 10% narrower turning radius. Single-track trails favor the Pro SS’s plush suspension, while the Ultra Bee’s setup reduces chassis flex during hard cornering at speed.
What Are the Top Speed and Acceleration Differences?
Both bikes hit 0-30 mph in under 3 seconds, but the Ultra Bee edges ahead with a 68 mph top speed versus the Pro SS’s 63 mph. The Pro SS’s mid-drive configuration provides quicker throttle response below 25 mph, while the Ultra Bee’s hub motor excels in 40+ mph acceleration due to reduced drivetrain inertia.
How Does Weight Distribution Impact Their Riding Dynamics?
The Pro SS’s 50:50 front-rear weight balance enhances maneuverability in tight trails. The Ultra Bee’s rear-biased 40:60 distribution improves traction during hard acceleration but requires more countersteering input. Weight differences are minimal—198 lbs (Pro SS) vs. 203 lbs (Ultra Bee)—but the Pro SS’s centralized mass lowers its center of gravity by 15%.
Which Model Offers Better Customization for Performance Tuning?
Surron Ultra Bee supports third-party firmware flashes for torque mapping adjustments, while the Pro SS uses a proprietary controller requiring hardware mods. Aftermarket part availability is 30% higher for the Ultra Bee, including sprocket kits for speed/torque customization. The Pro SS has modular battery trays for capacity expansion—a feature absent in the Ultra Bee.
“The Pro SS’s torque-focused design redefines technical trail capability, but Surron’s thermal management in the Ultra Bee sets new standards for sustained high-output riding. Riders choosing between them must prioritize either low-RPM muscle or heat-resistant speed endurance.” — Industry Engineer, Electric Motorcycle Development Consortium
FAQs
- Can either bike handle deep water crossings?
- The Ultra Bee’s sealed hub motor survives 24-inch water depths; the Pro SS requires additional stator coating for similar conditions.
- Which has lower maintenance costs?
- Ultra Bee’s brushless hub motor has 50% fewer wearable parts than the Pro SS’s mid-drive system.
- Are firmware updates user-accessible?
- Only the Ultra Bee allows DIY updates via mobile app; Pro SS requires dealer-level tools.