WELCOME TO
SUBSONIC MOTOR SPORT EV
COMING SOON 2026
SUBSONIC S1 MACH 1
GO KART
Glide Past the Grind
Experience true racing precision with a high-speed, Wishbone-suspended powerhouse that turns every bump into a smooth victory lap.
"BEYOND THE NEED FOR SPEED. THE SUBSONIC S1 MACH 1 IS ALL YOU WILL EVER NEED"
FREE USA SHIPPING FOR ALL STATES. SALE ENDS SOON
FOR INTERNATIONAL PURCHASES, PLEASE EMAIL US FOR SHIPPING RATES.
WE AT SUBSONIC MOTOR SPORT EV ANNOUNCE THE HIGH PERFORMANCE GRID IS NOW OPEN TO EVERYONE AT ELITE SPEEDS AT AFFORDABLE POCKET FRIENDLY PRICES.
The Subsonic S1 Mach 1 power supply system uses the best top of the line battery cells on the market today. Our battery cell configuration paired with a massive battery modulating system. "the brain" Will provide ridiculous amounts of power off the start and run time. Distance of miles or hours run time depends on the battery size you choose and also the weight of you the driver.
$6999.00 72v-44ah run time can range from 3 hours cruising to 1hr 30mins racing.
$7999.00 72v-64ah run time can range from 5.5 hours cruising to 3hrs racing.
Gravity on Demand: The Rear Aero-Wing
Master the track with high-velocity downforce that pins your tires to the asphalt, transforming raw speed into surgical cornering stability.
Why It Matters:
While the "bone-shakers" lose traction and bounce over imperfections, our rear wing uses precision aerodynamics to create constant downward pressure. This ensures that even at top speeds, your Subsonic S1 Mach 1 stays planted, giving you the confidence to push harder through every turn without losing grip.
Digital Intelligence Display
Equipped with a DKD digital display interface. This will provide real-time telemetry, including live speed, battery voltage, and current power mode status.
*Speed: real-time KPH or MPH.
*Battery Status: A 10-segment Bar and real-time Voltage.
*Gear Position: D (drive), N (Neutral), R (Reverse) and Speed Modes (1,2,3,S-sport). For different speed choices.
*Current Draw: Shows live battery current in Volts.
Indicators: head lights, brake lights.
Advanced FOC Controller
Advanced FOC Controllers: Managed by the FarDriver ND72680. This professional-grade Field Oriented Controller (FOC) system is designed for precise power mapping and high-efficiency heat management that provides the ultimate power performance. One power plant in one machine fits all age groups is all you will need. The software has many many different power mapping profiles to suit various track conditions and driver skill levels.
Choose The Endurance That Fits Your Racing Needs
Choose the endurance that fits your racing needs:
(please note kart weight is about (250 LBS) with batteries.
We have two batteries load sizes to choose from.
72v-44ah lithium ion battery. 3 hours cruising to 1 hour 30 mins racing.
72v-64ah lithium ion battery. 5 hours cruising to 3 hours racing.
Please note that this is just a rough time frame. Run times will vary on drivers weight and driving performance.
Programable Beginner or Professional Settings Adjustments
The motor and controller can be programable on the fly from
4 hp for safe, controlled learning experience. To a Max Performance Setting Configurable up to 27 hp expert-level racing.
It can be tuned from 10mph up to 80+ mph.
Fully Adjustable Powerplant
When it comes to alround powerplant we decided to pack this ride with one of the ultimate best electric motor in the racing industry.
The motor and controller offers a completely customizable power profile that can be tailored to any driver's experience level through the blue tooth controller. Output is fully programmable to grow with the driver, from beginner to ultimate pro. Allowing for seamless transitions between skill levels. On-the-Fly Tuning: The system is fully programmable via the controller and can be blue tooth connected directly to a laptop or touchpad and or phone at the track. This allows you to instantly recalibrate any speed acceleration for curves, and torque limits to suit specific track conditions or driver preferences at the track or in the shop.
The Pro-Grade comfort Pivot seat
We have the solution for all age groups in one kart. Stop buying toys they outgrow and buy one kart that fits all sizes and age groups. The Subsonic S1 Mach 1 is a full-scale single mold steel chassis frame with adjustable sliding seat that provides comfortable driving position for drivers that are 4’-3'' in height up to 6'-4'' in height by slide the seat all the way back for short people and then sliding seat all the back for tall people. you can also dial back the controller speeds and torque for safe learning modes. for your kids or beginners. Then when it’s your turn the master pro, just slide back the seat to your comfort and then unlock the full max speed and torque through you phone linked to the controller and BMS via Bluetooth to the full max settings output to 80+ mph.
Fits the kid today. Handles the man forever.
Safety System
Impact Safety System with Rapid Kill-Switch Button.
We Know that every driver will Push this Kart to Mach 1 speeds. That's why we installed the ultimate safety system. The S-Series is a rugged, track-tested safety system featuring Memory Plastic Bodywork that absorbs 10G+ severe impacts and springs back to its original form. Drivers are secured by a single mold wide side seat that keeps the drive in their position. It’s a "bulletproof" setup that lets you focus on beating your best time and passing the unprepared racers, knowing the safety hardware is keeping you safe.
Modular Cockpit Seat
Modular Cockpit adjustment.
All go karts have a stationary cockpit seat that is not adjustable at all these days. They limit driver size capabilities period. Not with the Subsonic S1 Mach 1 though. We wanted this kart to be your one stop shop for all age and size people and engine power.
Designed for the 10-second driver swap. S-Series eliminates the "one size fits all" compromise. With a wide-range of positions engineered in a sliding seat and a manual quick-release design, you can reconfigure the entire driver triangle in seconds for the ultimate comfort position. The lever-lock system provides a rock-solid connection that won't budge under heavy racing loads, allowing drivers from 4'-3" to 6'-4" to find their "Racing position" instantly. High-performance racing, now accessible to every body type in one kart.
Super Heavy Duty Rear Axle
Subsonic S1 Mach 1 High-Torque Axle: Engineered to handle the tremendous amount of instant torque from the QS138 motors will Generate. Made with a 40mm x 5mm (1.57" \times 0.2") aerospace-grade chromoly steel core, specifically heat-treated to handle the 100% instant torque delivery of high-output electric motors without flexing or twisting.
Drift Your Way To The Finish Line.
"Industrial Racing strength stopping power on all wheels. We installed four Machined aluminum calipers paired on front and rear with high-pressure braided lines with a stop rating of 14,500 psi for consistent performance on every corner and lap after lap." The S1 Mach 1 has incredible amount power that you can literally drift your way to the Finnish line and show of your victory by peeling out he tire till they blow.
Single Cast Mold Racing Chassis:
"Pioneering the next era of EV racing karts with KGB karts. This is not your average kart with welds on every piece that can be potentially week spots and can fail during racing. This is a kart designed with super strong single mold chrome-moly Steel frame chassis—built to withstand the impossible G-Forces that this kart will deliver. Forged from a single steel cast mold for flex and will provide a life time of durability.
S1 Mach 1 Signature Handling
Elite-Track Independent Suspension:
Engineered for absolute dominance, the S1 Mach 1 features a front and rear aluminum double-wishbone independent suspension. Paired with precision internal shock springs, this system maintains a relentless down force contact to the pavement for precise cornering stability, even under extreme lateral G-forces. Makes you feel like your finally in a F1 car.
Evolutionary Chassis & Cockpit Integration
The Unstoppable Beast Fardriver ND24680
''680 amps of pure, unfiltered attitude. The fardriver controller turns your right foot into a detonator, delivering immediate, face-melting torque the millisecond you touch the pedal. It doesn't just manage power-- it ruthlessly commands it.''
The Champion of all e-motors
QS138-90H Motor
''Subsonic doesn't just ride; it literally dominates with the absolute heavyweight champion of the QS138-family.
Powered by the legendary QS138-90H motor, it delivers the massive torque density, thermal headroom, and track-proven reliability needed to turn every throttle pedal push into pure adrenaline''.
The Heavy-Metal Performance Flex Together
"We didn't build this to play nice. The Fardriver 680-amp brain acts as the ultimate high-current detonator, feeding the massive 90mm stator of the QS138 motor to unleash over 35KW of blistering, track-shredding peak performance. It's an elite, heavy-hitting powerhouse engineered for one thing only: total, uncompromising domination.''
The Battery is the Unrestricted Power Grid
''We don't just pull power; we weaponized it. Subsonic unleashed an elite, high-current ecosystem: a massive 72v lithium backbone built on heavy-hitting 21700 5C cells-available in 44ah or an endurance-shattering 64ah unlocked by a 300-amp jinkong BMS. This ultimate power supply feeds 680 amps of fardriver fury straight into the QS138-90H motor, delivering instant, spine-snapping acceleration that never fades, never backs down, and never stops pulling and pushing power.''
IMPORTANT INFORMATION
We will provide a tracking number after payment clears, so you can track all your packages.
Production:
Our Subsonic S1 Mach 1 Go Karts are hand-built and put together 2to 5 days after they are removed from single molds and cleaned up and epoxy coated by our professional team. Fabrication and assembly time is roughly around 30 to 40 days.
Quality Control:
We at Subsonic triple check every order and triple check every square inch of every single part after each test drive of every purchased kart before it leaves our main factory. This stage takes about 2 to 3 days.
Shipping:
Safe and secure transport to your location.
We send out update emails updating you on the kart progress each step of the way. This is very important to use letting you know your karts delivery time frame.
Each kart will require assembly of parts listed below.
wheels/battery banks and plugs/wing/steering wheel bracket and seat. I will proving a link to a video for all installation information.