Demanding off-road terrain requires more than just raw power; it takes genuine engineering across the motor, suspension, braking, and chassis to handle steep climbs, rough trails, and aggressive riding without breaking down. The ALTIS Sigma electric dirt bike was built specifically to meet that challenge, combining flagship-level performance with the kind of durable components serious trail riders actually need. Here's a closer look at how the Sigma is engineered to support genuinely demanding off-road use.
Motor Power Built for Real Trail Demands
At the core of the Sigma's off-road capability is a 25kW peak Hairpin motor, producing 27 to 34 horsepower and a massive 601 Nm (443 ft-lbs) of torque. That torque figure is what actually matters on the trail; it's the difference between struggling up a steep incline and powering through it with confidence. Key performance specs include:
- 25kW peak motor output delivering serious acceleration and climbing power
- 601 Nm of torque, among the highest figures available in an electric dirt bike
- 80+ mph top speed, giving riders real headroom for open trail sections
- 39-tooth sprocket drivetrain, matched to handle the motor's full torque output without premature wear
This level of power delivery is exactly why the Sigma is positioned to compete directly with premium gas-powered dirt bikes rather than lighter recreational e-bikes.
A Battery System Built to Match the Power
Serious off-road riding demands a battery system that can support high, sustained power draw without faltering, and the Sigma's 98V 35Ah (3402Wh) Samsung 50S battery pack, branded the ALTIS PowerPack, is built specifically for that demand. It uses an air-cooled design to maintain consistent output during extended trail sessions, and it charges quickly reaching 80% in about 2 hours and a full charge in roughly 3 hours using a standard 110V/112V outlet, making it easier to get back out on the trail between rides.
Suspension Engineered for Rough Terrain
Suspension is where a lot of electric dirt bikes fall short compared to gas-powered competition, but the Sigma addresses this directly with genuine off-road-focused suspension components:
- 220mm of front suspension travel through an adjustable air spring setup
- 85mm of rear suspension travel through a linkage-based shock system
- 51-inch wheelbase for stability at speed over rough or uneven ground
- 13 inches of ground clearance, reducing the risk of bottoming out on rocks, roots, or ruts
These specs put the Sigma firmly in genuine off-road dirt bike territory, rather than a scooter-style crossover built with lighter-duty components.
Braking That Matches the Power on Tap
A bike capable of 80+ mph and 601 Nm of torque needs braking hardware built to match, and the Sigma delivers with heavy-duty 4-piston hydraulic brakes on 260mm front and 220mm rear discs. This setup provides the stopping power needed to safely manage aggressive descents and high-speed trail sections, giving riders genuine confidence rather than a braking system that feels overwhelmed by the bike's performance ceiling.
Built to Handle Real Abuse
Beyond the core performance numbers, the Sigma's construction reflects a bike meant to hold up under demanding, repeated off-road use. Notable durability features include:
- Forged aluminum alloy frame for strength without excessive weight
- Spoked wheels with aluminum rims and CST tires, built for traction and durability on rough terrain
- 20mm rear axle and 520H chain, sized to handle high torque loads without premature wear
- 300 lb max load capacity, giving flexibility for bigger riders or bikes loaded with additional gear
Even at 198 lbs with the battery installed, the Sigma manages to feel purposeful and well-balanced rather than bulky, thanks to its aluminum frame construction and thoughtful weight distribution.
A Cockpit Built for Serious Riders
The Sigma's 3.5-inch TFT display keeps essential ride data visible at a glance, while full lighting headlight, tail light, brake light, and turn signals helps keep the bike ready for mixed-use riding where local laws allow. Combined with its 450A controller, precisely matched to the motor's output, the Sigma avoids the bottlenecking issues that can limit power delivery on lesser-engineered electric dirt bikes.
Who the Sigma Is Built For
Given its price point and performance ceiling, the Sigma is best suited to experienced off-road riders who already understand suspension setup, throttle control, and the demands of aggressive trail riding. It's sold strictly for off-road or track use, is speed and power limited to comply with applicable regulations, and requires buyers to be 18 or older with ID verification completed before shipping or pickup.
Where to Buy
Wyrd Ryds carries the Altis Sigma electric dirt bike in Black and Red finishes, and because inventory is limited, interested riders are encouraged to check current availability directly.
Final Thoughts
Between its 601 Nm of torque, adjustable air suspension, heavy-duty braking, and durable forged aluminum frame, the ALTIS Sigma is genuinely engineered to support demanding off-road riding rather than just looking capable on a spec sheet. For serious riders who need a machine that can handle aggressive trail conditions, the Sigma delivers real, usable performance from top to bottom.
FAQ
How much torque does the Altis Sigma produce?
It produces 601 Nm (443 ft-lbs) of torque, among the highest figures available in an electric dirt bike.
What is the Sigma's suspension travel?
220mm of front travel through an adjustable air spring and 85mm of rear travel through a linkage shock system.
How long does the Sigma take to charge?
About 2 hours to reach 80% and roughly 3 hours for a full charge using a standard 110V/112V outlet.
Is the Sigma suitable for beginners?
No, its power and performance ceiling make it best suited to experienced off-road riders.
What is the max load capacity of the Sigma?
300 lbs.
Where can I buy the Altis Sigma?
Wyrd Ryds carries the Altis Sigma electric dirt bike in Black and Red finishes.
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