Altis Sigma | Best Selling E-Moto by Altis Powersports

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$4,899.00

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Version 2025 Version 2026 Version

Body color Black Red

Wheel Type SIGMA MX (19" FRONT / 16" REAR) SIGMA(19" FRONT / 19" REAR)

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$50 REV Rides Gift Card

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Foot Pegs by Warp 9 | Altis Sigma, Talaria MX3 MX4 MX5 XXX

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Enjoy Gripper seat cover for Altis Sigma

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Enjoy Ribbed Gripper seat cover for Altis Sigma (COLOR OUTSIDE/ RIBS)

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Enjoy Ribbed Gripper seat cover for Altis Sigma (COLOR INSIDE)

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Motul Chain Care Kit – Off-Road | By Motul

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Altis Sigma Electric Dirt Bike
2025 and 2026 Models

The Altis Sigma has quickly become one of the most well-rounded high-voltage e-moto platforms available. This listing includes both the 2026 Altis Sigma Limited Edition and the 2025 Altis Sigma , with options for Red or Black, plus both factory wheel setups, 19/19 and MX 19/16.

Built around a 98V-class system, a high-efficiency hairpin motor, Samsung battery technology, and a stable mid-weight chassis, the Sigma platform delivers strong acceleration, usable power, and a planted feel that riders immediately notice. It sits right between a Sur-Ron style bike and a full-size MX bike, making it one of the most versatile platforms in this category.

2026 Altis Sigma

The 2026 Altis Sigma is the most refined version of the platform to date. Altis took everything that worked on the original Sigma and improved it where it actually matters, more peak power, better throttle control, upgraded suspension, stronger components, and a more dialed rider setup.

This bike runs a 98V system paired with a 35Ah Samsung 21700 battery and a 25kW peak hairpin motor. The result is strong acceleration, higher sustained power, and the ability to carry speed in a way most bikes in this class still struggle with. The updated 450 phase-amp controller and refined throttle mapping make the power feel smoother down low while still hitting hard when you get into it.

Altis also stepped up the chassis and rider interface. You are getting a 220mm dual spring front fork, reinforced front hubs, updated linkage with dust seals, a 1 1/8" handlebar setup, and a new headlight design. It is still the same lightweight concept, just built to handle more aggressive riding.

From our perspective, what really stands out is how balanced this bike feels. The throttle curve is one of the best in this category, and the rider box and seat layout make it comfortable for longer rides compared to most high-power e-motos.

2026 Technical Specifications

Motor Power: 25kW peak, 34 HP
Torque: 601 Nm with 44T sprocket
Top Speed: 80+ mph on 19/19, 65+ mph on 19/16
Battery: 98V 35Ah Samsung 21700
Battery Capacity: 3400 Wh
Controller: 450 phase-amp
Weight: 198 lbs
Seat Height: 35"
Wheelbase: 51"
Ground Clearance: 13"
Front Suspension: 220mm dual spring fork
Rear Suspension: 85mm linkage
Brakes: 260mm front / 220mm rear, 4-piston hydraulic
Display: 3.5" TFT with NFC
Regen Braking: 5 adjustable levels
Charging Time: 80% in 2 hours, 100% in 3 hours
Cooling: Air-cooled
Wheel Options: 19" front / 19" rear or 19" front / 16" rear MX
Colors: Black or Red

2026 Upgrades

25kW or 33.5HP peak power output
Higher motor RPM for stronger top-end performance
Refined throttle tuning for smoother control and better response
Upgraded BMS for improved efficiency and range
220mm dual spring front fork
Reinforced front hubs for added durability
Dust seals added to rear linkage
1 1/8" handlebar upgrade
New headlight design

Altis Sigma Assembly Video

Altis Sigma 2026 vs 2025 Side by Side Comparison

Powertrain & Performance

Category	2026 Altis Sigma	2025 Altis Sigma
System Voltage	98V	97.2V (98V class)
Battery	35Ah Samsung 21700 (updated BMS)	35Ah Samsung 50S
Battery Capacity	~3.4 kWh	~3.4 kWh
Motor	Hairpin motor, higher RPM	Hairpin motor
Peak Power	25 kW (34 HP)	20–22 kW (27 HP)
Torque	~601 Nm+	533 Nm (39T) / 601 Nm (MX)
Top Speed	80+ mph (19/19) / 65+ mph (MX)	~70 mph
Controller	450A phase, refined tuning	Altis programmable
Throttle	Smoother, more aggressive	Standard mapping
Range	Improved efficiency	~50 miles (terrain dependent)
Regen Braking	5 levels	5 levels

Chassis & Suspension

Category	2026 Altis Sigma	2025 Altis Sigma
Frame	Refined forged aluminum	Steel & aluminum hybrid
Weight	~198 lbs	~185 lbs
Wheelbase	~51”	1285 mm
Seat Height	~35”	~840 mm
Ground Clearance	~13”	~300 mm
Front Suspension	220mm dual spring fork	200mm air spring fork
Rear Suspension	Linkage, 85mm + dust seals	Linkage, 85mm
Brakes	260mm / 220mm 4-piston	260mm / 220mm hydraulic

Wheels, Hardware & Cockpit

Category	2026 Altis Sigma	2025 Altis Sigma
Wheel Options	19/19 or 19/16 MX	19/19 or 19/16 MX
Chain	428	428H
Front Hubs	Reinforced	Standard
Rear Axle	Upgraded	18mm
Handlebars	1 1/8” (28.6mm)	7/8”
Display	3.5” TFT with NFC	3.5” TFT with NFC
Headlight	Updated design	Standard LED
Charging Time	~2–3 hours	~3–4 hours
Cooling	Air-cooled	Air-cooled

2025 Altis Sigma

The 2025 Altis Sigma is where this platform started to gain traction. It delivers the full 98V experience with strong torque, smooth throttle response, and a stable chassis at a more accessible price point.

Built around a 97.2V nominal system and a 35Ah Samsung 50S battery, this version offers excellent power delivery and reliability under load. The geometry, suspension, and overall setup make it a solid option for trail riding, open terrain, and MX practice without needing immediate upgrades.

It includes adjustable suspension, multiple ride modes, five levels of regen braking, and a 3.5" TFT display with NFC. For riders looking to step into higher voltage without jumping straight to the latest version, the 2025 Sigma still holds strong value.

2025 Technical Specifications

Voltage: 97.2V nominal, 98V class
Battery: 35Ah Samsung 50S lithium-ion pack, approximately 3.4 kWh
Motor: High-efficiency hairpin motor
Peak Output: 20 to 22 kW
Torque: 533 Nm with 39T sprocket
Torque, MX Variant: Up to 601 Nm with 44T sprocket
Controller: Altis programmable controller
Top Speed: Up to 70 mph unlocked
Range: Around 50 miles depending on terrain
Regenerative Braking: 5 selectable levels
Ride Modes: Multiple preset throttle and power maps
Weight: About 185 lbs
Wheelbase: 1285 mm
Seat Height: About 840 mm
Ground Clearance: About 300 mm
Frame: Reinforced steel and aluminum hybrid chassis
Swingarm: High-strength aluminum
Front Suspension: 200mm air spring fork
Rear Suspension: Linkage shock, about 85mm travel
Brakes: 260mm front / 220mm rear hydraulic system
Wheel Options: 19" front / 19" rear or 19" front / 16" rear MX
Chain: 428H
Display: 3.5" TFT with NFC
Lighting: LED headlight and tail / brake light
Charging Time: About 3 to 4 hours
Maximum Rider Load: About 300 lbs

Wheel Options

19/19 Setup: More stability at speed, better for open terrain and faster riding.

MX 19/16 Setup: Quicker handling, more responsive feel, and stronger rear torque delivery.

Models

Fits 2026 Altis Sigma
Fits 2025 Altis Sigma
Available in Red and Black
Available in 19/19 and MX 19/16 factory configurations
Compatible with OEM Altis Sigma 98V components and accessories for each model year

Who This Bike Is For

Riders coming from Sur-Ron or Talaria platforms looking for more power and range
Trail and enduro riders who want a lightweight bike that can still carry speed
MX riders looking for a high-voltage electric platform with real performance

Important Notes

Water resistant, not waterproof
Ships via freight
Some assembly required

Why Buy from REV Rides

We’ve been around the Sigma platform since early production and understand where each model fits. Whether you are deciding between 2025 and 2026 or choosing your wheel setup, we can help you get dialed in. We back what we sell with parts support, real experience, and straightforward guidance.

Resources

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

2025 Altis Sigma Unveiling Video by REV Rides

Logan taylors overview video

Limited Edition VS Standard edition

Tim Chitwood on the Sigma

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 local 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.

*Top Speed Information

Off-road Top Speed:

NOTICE: Some vehicles include a “City Mode” that limits top speed to 20 mph, making them compliant with many city and state regulations for use on public roads, bike paths, sidewalks, and parks. Other vehicles may feature an “Off-Road” or “Race” mode, which increases performance and top speed (more than 20mph) but may render the vehicle illegal for use in the city or on public roadways. Vehicles without a “City Mode” and exceed a top speed of 20mph are not for use on public roads, bike paths, sidewalks or in parks, and are intended for off-road, privately owned land or track use only. Always check and follow your local laws and regulations before riding.

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

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

Warranty

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

Altis Powersports Warranty Coverage for

bikes purchased after 09/03/2025:

Altis Powersports Warranty Coverage

30-Day Warranty – Workmanship & Operational Issues
Covers defects in workmanship and operational issues effective from the date of delivery of the unit.
30-Day Warranty – Parts & OEM Accessories
Covers all standard parts and OEM accessories included with the unit.
365-Day Warranty – Power System Components
Covers the following components for 1 year (365 days) from delivery. These parts must be returned to Altis Powersports for evaluation:

- Battery
- Controller
- Motor

90-Day Warranty – Display

- Covers the display for 3 months (90 days) from delivery.
- The display must be returned to Altis Powersports for evaluation.

30-Day Warranty – All Other Parts

- Any other covered components not listed above fall under a 30-day warranty.

Warranty Exclusions

This Limited Warranty does not cover the following:

Normal wear items: brake components, seals, bearings, chains, suspension parts, tires, rims, grips, and handlebars.
Misuse, abuse, or accidents: including collisions, neglect, or improper operation.
Alterations or unauthorized modifications: including tampering with factory wiring, installation of non-genuine parts, or racing/competition use.
Improper handling or storage: including incorrect charging, discharging, or storage of the unit.

Warranty Claim Process

Submit warranty claim to your original authorized dealer.
For approved claims, defective components must be returned to Altis Powersports for technical evaluation before a replacement is issued.
Proof of purchase (receipt from Altis Powersports Inc. or an authorized dealer) is required to process all warranty claims.

Warranty Timeframe Exception

The only exception to the stated warranty timeframes is if the required replacement part is temporarily out of stock.
As long as the claim was submitted within the valid warranty timeframe, Altis Powersports will honor the claim and provide a replacement once the part becomes available.

Additional Terms

This warranty is non-transferable and valid only for the original purchaser.
Altis Powersports Inc. reserves the right to determine, after inspection, whether a component is covered under warranty.

Altis Powersports Warranty Coverage for

bikes purchased before 09/03/2025:

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.

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