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Juggernaut Ultra Duo 2
Juggernaut Ultra Duo 2
$0
VS XPeak2 Long-Range
XPeak2 Long-Range
$1,699
Pricing
Price
MSRP for base model; does not include shipping or accessories.
-- $1,699 Best
Motor
Motor (Nominal)
Continuous rated power; peak power may be higher.
1,000 W 1,310 W Best
Motor (Peak)
-- 1,310 W Best
Battery
Battery
910 Wh 960 Wh Best
Performance
Range
Real-world range under ideal conditions; varies with terrain, rider weight, and assist level.
45 mi 80 mi Best
Top Speed
-- 28 mph Best
Utility
Weight
73.0 lbs 64.5 lbs Best
Payload Capacity
380 lbs Best 330 lbs
UL 2849 Electrical System
UL 2849 verifies the complete eBike electrical system (motor, controller, wiring, display, and battery integration).
-- UL2849 Certified
UL 2271 Battery Pack
UL 2271 validates battery-pack safety, including enclosure integrity and thermal-runaway resistance.
-- UL2271 Certified
Foldable
No No
Full Review → Full Review →
Head-to-Head Visual Comparison

Radar breakdown for 2 bikes.

Click a model below to highlight stats.

Expert Insights

🏆 Performance Leaders

Best for Power: XPeak2 Long-Range
Multiple bikes tied for lead (Value): Juggernaut Ultra Duo 2, XPeak2 Long-Range

🛠️ Technical Advantages

No category-based advantages detected.

🏁 Expert Verdict

Overall winner: XPeak2 Long-Range
Spec Juggernaut Ultra Duo 2 XPeak2 Long-Range
Power 9 10
Range 0 0
Weight 10 9
Payload 10 9
Value 10 10

Juggernaut Ultra Duo 2

Power 9
Range 0
Weight 10
Payload 10
Value 10

XPeak2 Long-Range

Power 10
Range 0
Weight 9
Payload 9
Value 10

🏆 20-Mile Hilly Commute Challenge

Simulated at PAS Level 3 on hilly terrain. See remaining battery after 20 miles.

Efficient (> 40%) Cutting it close (10–39%) Range Anxiety territory (0–9%)
Adjust Rider Weight for All Bikes 200 lbs

Juggernaut Ultra Duo 2

Cutting it close 40%

XPeak2 Long-Range

Efficient 43%

💡 Why do some bikes handle hills better?

You may notice that Mid-Drive motors often finish this challenge with significantly more battery remaining than Hub Motors, even with similar battery sizes. This is because Mid-Drives leverage the bike's existing gears, allowing the motor to stay in its "efficiency sweet spot" on steep climbs. Conversely, Hub Motors must work much harder at low speeds, often losing up to 25% more energy to heat when under heavy load on a hill.

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