Altis Sigma (Limited Edition)

Long Range & High Performance Electric Dirt Bike

Limited edition is sold out, but we have the
2025 Altis Sigma. please click here for more info.

The Limited Edition Altis Sigma electric dirt bike for adults and serious riders, has raised the standards for the entire e-moto industry. With its 98-Volt System, 35-Amp Hour battery and powerful 22kW hairpin motor, coupled with motocross-grade brakes, a heavy-duty suspension, and strong yet lightweight aluminum frame, Altis Powersports met and exceeded our expectations from a quality, performance, and price perspective. The Altis Sigma is available at REV Rides in two powerful models, Altis Sigma and Altis Sigma MX, with the MX having a 16" rear wheel. and the Sigma with a 19" rear wheel. Both models come with a 19" front wheel. The both Sigma electric dirt bike models feature a powerful 27 HP (22kW) peak motor with hair-pin technology--the first time ever used in an electric dirt bike, and is now quickly becoming an industry standard even among competitors; delivers an impressive 443 lb-ft (601 Nm) of torque for exhilarating off-road adventures. With a lightweight aluminum alloy frame, advanced adjustable air-spring suspension, and a long-lasting Samsung 50S battery pack, the ALTIS SIGMA combines performance and versatility like never before. Experience the future of electric riding with enhanced features such as a reverse gear, 3.5" TFT display that enables never-before seen tuning, five levels of regenerative braking, full size brakes and heavy-duty CST off-road tires. The Altis Sigma has a Top Speed of 20 Mph From the factory - see below for unlocked top speed. 

Only 500 Limited Edition Altis Sigma bikes were produced. Existing quantities are extremely limited and selling fast. Order soon if you want to be one of the few that secure the 2025 Limited Edition Altis Sigma.

Limited Edition Altis Sigma Product Highlights

• Upgraded BMS: Improved battery efficiency and reliability with up to 10% more range
• Higher RPM: Boosted motor speed from 7800 to 8300 RPM
• Increased Torque: Raised from 601 Nm to 626 Nm for stronger acceleration
• New Throttle tune: Enhanced modulation and smoother power delivery for better off-road control more aggressive in race
  
• New Front suspension: Dual spring front suspension
• Dust Seals: in rear suspension linkage
• New front wheel hubs, on wheels for more strength and stability
  
  

19" Sigma & 16" Sigma MX

Introducing the Altis Sigma electric dirt bike. Redefining what's possible in high-performance e-moto riding. This newest release from Altis Powersports builds on the already revolutionary Sigma platform with upgraded performance and range—thanks to a new BMS system, improved torque, higher motor RPM, and a refined throttle for better control and responsiveness.

Now available in two wheel configurations:

• Sigma (19" front / 19" rear) for maximum speed and stability
• Sigma MX (19" front / 16" rear) for tighter handling and torque emphasis

Quantities are extremely limited. Order now before they’re gone.

 

Want to be apart of the Sigma riding community?
Join the Altis Sigma Facebook group here.

Power & Control Highlights

• Motor: 22-23 kW peak (27-30 HP) Hairpin Motor
• Torque: 605-650 Nm (with 44T Sprocket)
• Battery: 97.2V 35Ah Samsung 50S cells (Greenway Battery Pack)
• Controller: 450 Phase-Amp Controller
• Throttle: Updated for smoother response
• Display: 3.5" TFT with NFC and password/unlock security
• Regen Braking: Five selectable levels
• Lighting: Headlight with hi/low beam + brake-activated taillight
• Top Speed: Factory limited to 20 mph (unlockable – see below)

Chassis & Suspension

• Frame: Forged aluminum alloy
• Weight: 185 lbs (with battery)
• Wheelbase: 51 inches
• Ground Clearance: 12 inches
• Seat Height: 33 inches
• Suspension:
• Front: 200mm travel air-dual spring fork
• Rear: 85mm travel with linkage
• Brakes: 4-piston DOT hydraulic brakes (260mm front / 220mm rear)
• Wheels:
  
  • Sigma: 19" front / 19" rear
  • Sigma MX: 19" front / 16" rear
• Tires: CST off-road tires
• Chain: 428H

Battery & Charging

• Battery Capacity: 3.402 kWh
• Charging Time:
• 80%: 120 min
• 100%: 180 min
• Input: AC 110V/220V – 12.5A
• Cooling: Air-cooled system

 

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Altis Sigma 2025 Highlights:

 

Feature	Altis Sigma 2025
Rear Wheel	19” (Sigma) / 16” (MX)
Front Wheel	19”
Motor Power (Peak)	23kW (30 HP)
Torque (Peak)	626 Nm
Motor RPM	8300 RPM
Battery	97.2V 35Ah Samsung 50S (Upgraded BMS)
Controller	450A Phase
Throttle	Tuned for smoother & more aggressive response
Display	3.5” TFT w/ NFC Lock
Regen Braking	5 Selectable Levels
Brakes	4-Piston DOT Hydraulic
Suspension (Front)	200mm Dual Spring Fork (Upgraded from air fork)
Suspension (Rear)	Linkage w/ 85mm Travel (Now includes dust seals)
Handlebars	1 1/8” (Upgraded from 7/8”)
Rear Axle	20mm (Upgraded from 18mm)
Front Hubs	Reinforced
Top Speed (Unlocked)	~70+ MPH
Weight	~185 lbs
Frame	Forged Aluminum Alloy
Colors / Graphics	Standard

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Altis Sigma 2025 vs Altis Sigma 2025 Limited Edition

 

Feature	Altis Sigma 2025	Altis Sigma 2025 Limited Edition
Rear Wheel	19” (Sigma) / 16” (MX)	19” (Sigma) / 16” (MX)
Front Wheel	19”	19”
Motor Power (Peak)	22kW (27 HP)	23kW (30 HP)
Torque (Peak)	601 Nm	626 Nm
Motor RPM	7800 RPM	8300 RPM
Battery	97.2V 35Ah Samsung 50S	Same (Upgraded BMS)
Controller	450A Phase	Same
Throttle	Standard	Tuned for smoother & more aggressive response
Display	3.5” TFT with NFC Lock	Same
Regen Braking	5 Levels	Same
Brakes	4-Piston DOT Hydraulic	Same
Suspension (Front)	200mm Air Spring Fork	200mm Dual Spring Fork
Suspension (Rear)	Linkage w/ 85mm Travel	Same (w/ dust seals added)
Handlebars	7/8”	1 1/8”
Rear Axle	18mm	20mm (Upgraded)
Front Hubs	Standard	Reinforced
Top Speed (Unlocked)	~70 MPH	~70+ MPH
Weight	~185 lbs	Same
Frame	Forged Aluminum Alloy	Same
Colors / Graphics	Standard	Same
Availability	In Production	Extremely Limited (500 units)
Price	Lowered from Standard MSRP	Standard MSRP

 

Altis Sigma vs. Sigma MX – What’s the Difference?

 

Feature	Altis Sigma (19/19 setup)	Sigma MX (19/16 setup)
Rear Wheel Size	19” Rear	16” Rear
Handling	Greater straight-line stability and top-end speed	More responsive handling and quicker torque delivery
Best For	Mixed terrain, trail riding, and higher-speed runs	Motocross-style riding and tight, technical terrain

Altis Sigma Overview

• Rated Motor Output: 8 kW
• Max Motor Power: 20+ kW
• Torque: 75 Nm rated / 650 Nm peak
• Transmission: Gearbox (600-mile first service)
• Max Load: 300 lbs
• Steering Head Angle: 26°
• Water Resistance: Rated water-resistant (not waterproof)

Resources

• Altis Sigma User Manual
• How to Unlock Full Power
• OTA App & Software Update Info
• Altis Sigma Rider Community – Join the Facebook Group

Shipping & Assembly

• Ships via freight (some assembly required)
• Local pickup available by appointment
• Always avoid liquid exposure to battery, controller, or wiring

ALTIS SIGMA LINKS / TECH INFORMATION

• OVER THE AIR APP SOFTWARE UPDATE INFORMATION
• ALTIS USER MANUAL
• HOW TO GET FULL POWER FROM MY ALTIS
  

Altis Sigma Unveiling Video by REV Rides

Altis Sigma Assembly Video

Please note: The Altis Sigma is not waterproof (only water resistant). Always avoid liquid exposure to the battery, wires/connectors, controller, cockpit controls and other electronic components.

Altis Sigma orders ship via freight unless you arrange for local pick-up. Some assembly is required. 

Disclaimer:
This product was designed and intended for off-road and closed-course use only. Prohibited for use on public streets, sidewalks, bike paths, or other municipal property, unless otherwise posted. Refer to city, county, state and federal regulations before riding. Purchasers must be 18 years or older, or have parents/guardian permission. Always wear approved safety gear, and ride responsibly.

Disclaimer:
This product was designed and intended for off-road and closed-course use only. Prohibited for use on public streets, sidewalks, bike paths, or other municipal property, unless otherwise posted. Refer to local city, county, state, and federal regulations before riding. Purchasers must be 18 years or older or have parent or guardian's permission. Always wear approved safety gear, and ride responsibly.