• Altis Sigma Electric Dirt Bike
  • Altis Sigma and Altis Sigma MX Electric Dirt Bikes
  • Altis Sigma Electric Dirt Bike for sale
  • Altis Sigma MX for sale
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Altis Sigma Electric Dirt Bike | Best in Class | In Stock

Altis Sigma Electric Dirt Bike | Best in Class | In Stock

$5,499.99
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Altis Sigma Electric Dirt Bike | Best in Class

In Stock & Shipping Daily

Altis Sigma, the all-new 98-Volt, 35-amp hour long-range battery, electric dirt bike is a groundbreaking bike that has already shaken up the entire e-moto industry. The Altis Sigma is available at REV Rides in two powerful models, the Altis Sigma and Sigma MX, with the MX having a 16" rear wheel. and the Sigma with a 19" rear wheel.  Both models boast a 19" front wheel. This cutting-edge bike boasts a robust 27 HP (20kW) peak Hairpin motor, delivering 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 3.5" TFT display that enables never-before seen tuning, five levels of regenerative braking, 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. 

Quantities are extremely limited and selling fast. Order soon if you want to be one of the first to own the Altis Sigma. Future shipping updates will be posted here. 

ALTIS SIGMA MX vs. ALTIS SIGMA

The Altis Sigma MX has a 16" rear wheel (often preferred in off-road settings), where as the Altis Sigma has a 19" rear wheel. Otherwise, the two bikes are identical.
ALTIS SIGMA & ALTIS SIGMA MX SPECIFICATIONS

Design & Performance Upgrades:

Altis decided to make some upgrades to the final production bikes. Here’s a list of some of those changes!

1) 22kw Motor output, increased from 20kw
2) Upgraded front fork springs
3) 3-inch Handlebar riser bar
4) New chain guard included
5) New rotor bash guard included

ALTIS SIGMA PRODUCT HIGHLIGHTS

  • Battery: 97.2V 35Ah (3402Wh) Samsung 50S battery Cells (Greenway Battery Pack)
  • Motor: 22 kW peak Hairpin Motor (Automotive standard)
    Torque: 601 Nm (44T Sprocket)
  • Wheels: Laced wheels: Fr 19" / Rr 16" (Straight-pull)
  • Suspension: Adjustable off-road air-spring suspension
  • Display: 3.5" TFT display with NFC feature
  • Tuning: Adjust throttle curves, aggressiveness, and more through the display
  • Regenerative Braking: 5 levels of regenerative braking
  • Lights: Headlight & Taillight (w/brake light) switch, has high beam and low beam
  • Brakes: Heavy duty 4 piston DOT disc brakes
  • Top Speed: 20 Mph (From the factory. See below for unlocked top speed)
  • Tires:
    • SIGMA MX: CST off-road tires (specific size)
    • SIGMA: CST off-road tires (potentially different tread pattern)

ALTIS SIGMA CHASSIS SPECIFICATIONS

  • Weight (with battery): 185 Lb (84 kg)
  • Wheelbase: 51 Inches (1285 mm)
  • Front Brake Disc Diameter: 260 mm
  • Rear Brake Disc Diameter: 220 mm
  • Chain: 428H
  • Frame Design: Aluminum alloy forging
  • Ground Clearance: 12 Inches (300 mm)
  • Seat Height: 33 Inches (840 mm)
  • Steering Head Angle: 26°
  • Suspension Travel (Front): 8 Inches (200 mm)
  • Suspension Travel (Rear): 3.3 Inches (85 mm) with linkage
  • Wheels: Spoked wheels with aluminum rims
  • Max Load: 300 lbs

ALTIS SIGMA POWERTRAIN SPECIFICATIONS

  • Rated Output: 8 kW
  • Controller: 450-Phase Amp Controller 
  • Torque: 75 Nm
  • Battery: Lithium-lon ALTIS PowerPack
  • Battery Capacity: 35 Ah
  • Charging Input: AC110V/220V 12.5A
  • Charging Time 100%: 180 min.
  • Charging Time 80%: 120 min.
  • Cooling: Air cooled
  • Energy Content: 3.402 kWh
  • Electric Motor: 98V - Hairpin motor
  • Max Power: 20+ kW
  • Gearbox: 600 mile first service, 5000mile/5 year 2nd service

Which Sigma is Right for You?

• Sigma (19/19 Wheels) – Ideal for riders who want versatility. Whether you’re hitting trails, gravel roads, or occasional pavement, this setup provides a balanced mix of stability, speed, and off-road capability. If you’re looking for higher top speeds while maintaining off-road performance, the standard Sigma is the way to go.

• Sigma MX (19/16 Wheels) – Built for the off-road purist. If you spend most of your time on motocross tracks, single-track trails, or technical terrain, the smaller rear wheel enhances agility, acceleration, and handling. The focus here is on control and responsiveness rather than outright top speed, making it perfect for aggressive off-road riding.

ALTIS SIGMA LINKS / TECH INFORMATION

Altis Sigma Unveiling Video by REV Rides



Altis Sigma Assembly Video


Please note that this product is not fully waterproof (only water resistant) and some assembly is required. It can be assembled at home but we advise taking to a professional. 

*Top Speed Information

Off-road Top Speed: sigma 19/19 70+ MPH, Sigma MX 57+mph

NOTICE: This personal electric vehicle (PEV) comes factory set to “City Mode” with a maximum on-road speed of 20 mph, in compliance with common city and state regulations, making it suitable for use on public roads, sidewalks, bike paths, and city parks. Activating off-road or track mode will increase vehicle performance and top speed, but please note that your PEV may no longer be legal for street use in this mode. It’s essential to check and follow all applicable local laws and regulations when riding. 

Click here to learn how to enable off-road/mode. 

Click here to learn more about City Mode and Off-Road Mode  

FAQ

Q: What's the difference between the Altis Sigma and the Altis Sigma MX?
A: The Altis Sigma has 19" wheels front and rear. The Altis Sigma MX has a 19" front wheel, and a 16" rear wheel.

Q: What's the top speed of the Altis Sigma?
A: The Altis Sigma has a top speed of over 70 MPH. (Depending on weight and conditions) Sigma MX Is aprox. 57mph

Q: What is the range of your electric motorcycles on a single charge?
A: The range depends on various factors, including riding style, terrain, and battery capacity. On average, the Sigma series offer a range of 60-70 miles per charge under Eco mode and normal riding conditions. Most will see a Realistic average in Higher modes 40-55 miles

Q: How does the Altis Sigma manage temperature and power to ensure reliability and safety?
A: The Altis Sigma adjusts its performance based on temperature and battery charge (SOC) to protect its battery and ensure reliability. It limits power in extreme temperatures (below 70°F or above 140°F) or when the State of Charge decreases, ensuring safe operation and prolonging battery life. In cold weather, warming the battery may temporarily reduce available power.

Q Can i change the battery settings to allow higher speed in more extreme temps?
A: Yes Altis Directly will offer a dongle to Update the battery. But it will lower the life of the battery and shorten your warranty.

Q: Whats the length?
A: 76 inches long

Q: Which Sigma should I buy?
A1: • Sigma (19/19 Wheels) – Ideal for riders who want versatility. Whether you’re hitting trails, gravel roads, or occasional pavement, this setup provides a balanced mix of stability, speed, and off-road capability. If you’re looking for higher top speeds while maintaining off-road performance, the standard Sigma is the way to go.
A2: • Sigma MX (19/16 Wheels) – Built for the off-road purist. If you spend most of your time on motocross tracks, single-track trails, or technical terrain, the smaller rear wheel enhances agility, acceleration, and handling. The focus here is on control and responsiveness rather than outright top speed, making it perfect for aggressive off-road riding.

Warranty

Altis Powersports Inc. Limited Warranty Policy

Altis Powersports Inc. is committed to providing high-quality electric off-road motorcycles and exceptional customer service. We offer a Limited Warranty on our products to ensure that our customers have confidence in their purchase and enjoy a reliable and durable riding experience.

Warranty Coverage
30-Day Warranty on Workmanship Defects and Operational Issues Altis Powersports Inc. provides a 30-day warranty, effective from the date of delivery, covering any defects in workmanship and operational issues with the unit.

30-Day Warranty on Parts and OEM Accessories Altis Powersports Inc. offers a 30-day warranty, effective from the date of delivery, for all parts and OEM accessories included with the unit.

365-Day Warranty for Power System Components Altis Powersports Inc. offers a 365-day warranty, effective from the date of delivery, on key power system components, including the motor, controller, and battery.

Warranty Exclusions
The Limited Warranty does not cover:

Normal Wear Components: This includes, but is not limited to, brake components, seals, bearings, chains, suspension components, tires, rims, grips, and handlebars.
Misuse or Abuse of the Product: This includes any damage caused by accidents, collisions, or general neglect.
Alterations and Unauthorized Modifications: Any modifications to the factory wiring, installation of non-genuine Altis parts, or use of the product in racing or competition will void this Limited Warranty.
Improper Handling and Storage: Misuse in charging, discharging, or improperly storing the unit will also void this Limited Warranty.
Additional Terms
This Limited Warranty is non-transferable and is only valid for the original purchaser.
Proof of purchase, such as the original receipt from Altis Powersports Inc. or an authorized Altis Powersports Inc. dealer, is required to claim the warranty.
Warranty Claim Process
To initiate a warranty claim, please contact Altis Powersports Inc. or your authorized dealer. Ensure you have your original proof of purchase and detailed information about the issue you are experiencing. Our customer service team will guide you through the process to assess and address your claim.

Altis Powersports Inc. values your business and strives to provide a reliable, high-quality product. We encourage you to read this warranty policy thoroughly to understand its terms and conditions. For any further questions or assistance, please reach out to our customer support team.

Thank you for choosing Altis Powersports Inc.

At REV Rides we understand the importance of micromobility. Many of our customers rely on their electric vehicles for transportation to work, school or just daily recreation. Because of this we want to ensure that our customers feel secure with their purchase from us.

Click here to learn more about our warranty

View full details

INTRODUCING THE ALTIS SIGMA BY ALTIS POWERSPORTS

Customer Reviews

Based on 21 reviews
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Dena Wallace

I love it ❤️

R
Robert S
Altas sigma

I am 6 foot 1 and 240 pounds. Hate loud bikes. Grew up on 250 and 450 bikes. This bike it’s amazingly powerful. To sling around tight woods and just messing around. I love it. Needs wider and more aggressive tires. Altis did amazing job

J
Joel Deets

Bike feels well built. Lots of power but delivered smooth. Brakes are amazing. Got 32 miles of hard trail riding on one charge.

J
Jason Shuey
Great Bike, nothing competes with this bike!

I will admit i would’ve liked to have gotten the update cable with my order like we were told but i am not going to complain about Revrides prompt shipping once these bikes got into their hands. I think this bike has a ton of great specs, tech and plenty of power. I am 100% happy with this purchase!

R
Raymond-RayRay
The best midsize bike out there so far

I'm stepping up from an e-ride Pro 2.0 onto the new Sigma Altis Mx and from the first second of my first ride it feels more like a real motocross bike then a lightweight toy. I've have not gone off road yet only did a little asphalt time. Where I live it's 5° and it's snowmobile country right now. In a couple months when the woods open back up will definitely put this bike through its paces, but I have a good feeling about this one.

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