Sur-Ron Ultra Bee VS Altis Sigma
Quick Verdict
The Rundown
The Altis Sigma outperforms the Ultra Bee in power, speed, weight, and price. Unless you specifically need the Ultra Bee's 4800Wh battery for maximum range, the Sigma is the better buy.
Why Choose
Sur-Ron Ultra Bee
Range-focused riders who need the biggest battery available (4800Wh) for all-day endurance rides
- 4800Wh battery is 41% larger than the Sigma's 3402Wh — the single biggest range advantage in this comparison
- Established Sur-Ron brand with growing Ultra Bee aftermarket and US dealer support
- 265lb rider capacity handles most riders — though the Sigma's 300lb is better
- 12.5kW is proven and well-understood — reliability data exists from thousands of owners
- 56mph top speed is adequate for fire roads and light road use alongside the Sigma
Why Choose
Altis Sigma
Performance riders who want 76% more power, 8mph more speed, and 37lbs less weight at a lower price than the Ultra Bee
- 22kW is 76% more power than the Ultra Bee — dramatic acceleration and climbing advantage
- 64mph top speed is 8mph faster — genuine road-capable speed that the Ultra Bee can't match
- 194lbs is 37lbs lighter despite more power — superior power-to-weight ratio
- $5,299-$5,899 is $1,200-$1,700 cheaper than the Ultra Bee — more for less
- 300lb rider capacity is the highest in this comparison — accommodates virtually any adult
Head to Head
Spec-by-Spec Comparison
| Spec | Sur-Ron Ultra Bee | Altis Sigma |
|---|---|---|
| Price | $6,500–$7,600 | $5,299–$5,899 |
| Top Speed | 56 mph | 64 mph |
| Peak Power | 12.5 kW | 22 kW |
| Range | 40–65 mi | 40–70 mi |
| Weight | 231 lbs | 194 lbs |
| Battery | 4800 Wh | 3402 Wh |
| Charge Time | ~3.5 hrs | ~3 hrs |
| Drivetrain | Chain | Chain |
Price
Sur-Ron Ultra Bee
$6,500–$7,600
Altis Sigma
$5,299–$5,899
Top Speed
Sur-Ron Ultra Bee
56 mph
Altis Sigma
64 mph
Peak Power
Sur-Ron Ultra Bee
12.5 kW
Altis Sigma
22 kW
Range
Sur-Ron Ultra Bee
40–65 mi
Altis Sigma
40–70 mi
Weight
Sur-Ron Ultra Bee
231 lbs
Altis Sigma
194 lbs
Battery
Sur-Ron Ultra Bee
4800 Wh
Altis Sigma
3402 Wh
Charge Time
Sur-Ron Ultra Bee
~3.5 hrs
Altis Sigma
~3 hrs
Drivetrain
Sur-Ron Ultra Bee
Chain
Altis Sigma
Chain
Deep Dive
Key Differences
Power & Speed
Sur-Ron Ultra Bee
12.5kW with proven, refined power delivery — predictable performance backed by years of real-world data
Altis Sigma
22kW is 76% more powerful with 64mph top speed — a full tier above the Ultra Bee in performance class
The Sigma's 22kW motor is a generational leap over the Ultra Bee's 12.5kW. The acceleration difference is immediately obvious, and the 8mph top speed advantage matters on roads and open fire roads.
Range & Battery
Sur-Ron Ultra Bee
4800Wh is 41% more battery — the Ultra Bee's defining advantage for riders who need maximum range per charge
Altis Sigma
3402Wh provides 40-70 miles while powering a significantly more powerful motor — impressive efficiency
The Ultra Bee's 4800Wh battery is its trump card. For riders who measure rides in hours rather than intensity, the extra 1400Wh of capacity matters. The Sigma's range is competitive but can't match all-day Ultra Bee endurance.
Weight & Handling
Sur-Ron Ultra Bee
231lbs provides stability at speed and momentum through rough terrain — solid and planted
Altis Sigma
194lbs with 22kW gives the Sigma a dramatically better power-to-weight ratio and easier handling
The Sigma weighs 37lbs less while producing 76% more power. This power-to-weight advantage is felt in every acceleration, every corner, and every time you need to maneuver at low speed. The Ultra Bee feels ponderous in comparison.
Ownership & Value
Sur-Ron Ultra Bee
Sur-Ron brand maturity with established US dealers, known resale values, and growing aftermarket
Altis Sigma
$1,200-$1,700 cheaper with 76% more power and 37lbs less weight — objectively better value per dollar
The Sigma offers more of everything that matters — power, speed, handling — for less money. The Ultra Bee's brand premium is real but increasingly hard to justify when the Sigma outperforms it across the board.
The Bottom Line
Our Pick: Altis Sigma
The Altis Sigma outclasses the Ultra Bee in power (76% more), speed (8mph faster), weight (37lbs lighter), and price ($1,200+ cheaper). The Ultra Bee's only remaining advantage is its 4800Wh battery. For most riders, the Sigma is the clearly superior machine.
Sur-Ron Ultra Bee
Choose the Ultra Bee only if maximum battery capacity (4800Wh) for all-day range is your top priority, or you specifically trust Sur-Ron's established dealer network.
Altis Sigma
Choose the Altis Sigma if you want the most performance per dollar — 22kW, 64mph, and 194lbs at $5,299-$5,899 makes the Ultra Bee look overpriced.
Send Bikes Alternative
The SR delivers 25kW and 70mph — surpassing both bikes — with belt drive reliability and dealer support at $5,699, cheaper than the Ultra Bee.
Service & Warranty
Neither bike comes with Send Bikes dealer support. Sur-Ron has a more established US dealer network. Altis is newer with limited dealer infrastructure — research local availability before purchasing.
Financing & Ownership
Send Bikes offers financing on the SR ($5,699, 25kW, 70mph) which outperforms both bikes with belt drive and full dealer support — a strong alternative to either competitor.