SRK

The Arcimoto SRK is an ultra-efficient pure electric enclosed frame tandem three-wheeled motorcycle with superior ride characteristics and familiar automotive controls.  We know, that’s a mouthful.  Read on to learn all the details.

Ultra-Efficient

Maximizing the efficiency of the vehicle is what drives the project and is the core metric against which every design decision is judged. Arcimoto’s goal is to build the most efficient vehicle possible that still meets the needs of everyday driving. It’s the right tool for the job for the vast majority of driving tasks. Cars today are inefficient by design: the vehicles themselves are significantly over capacity for the typical driver’s needs, and they’re typically powered with a pollutive energy source that feeds a very inefficient combustion process. We no longer live in a world where oil is dirt cheap and the environmental consequences of just torching all that energy can be ignored. The Arcimoto SRK achieves ultra-efficiency through its pure electric drive, aerodynamic tandem seating, a lightweight footprint, and three wheels for reduced road drag while maintaining superior handling characteristics.

Pure Electric

The pure electric drive is simple, efficient, quiet, has instantly available torque, and can be powered by renewable sources of energy. On the order of 3 times the energy efficiency of an internal combustion engine and featuring zero tailpipe emissions, the electric drive is the mother of all transportation no-brainers. The Arcimoto drive train is battery agnostic, accommodating everything from yesterday’s lead-acid batteries to the advanced battery chemistries of tomorrow, and allows for a variety of range options depending on the battery pack purchased. The Arcimoto SRK will have multiple options for charging as well. Plug it into your 110-volt household outlet at home, or use a 220-volt appliance outlet or J1772 charging station outlet for faster charging.

Enclosed Frame

Race vehicle designers achieve safety and lightweighting goals by utilizing tube safety frames. Arcimoto's safety frame is engineered to protect occupants in a vehicle roll over and has crumple zones to provide added safety in the event of front and rear collisions. Racing seats and four-point harnesses are included for both passengers to further increase occupant safety. The enclosed frame base model can be augmented with clear polycarbonate panels to provide full protection from the elements yet preserve the unprecedented visibility the SRK affords to the driver.

Tandem

Tandem seating provides a unique driving and riding experience. Driving in the center of a narrow vehicle allows you to truly “own the lane”. No more hugging the lane divider to accommodate the unused right half of your car. The rear seat is fully comfortable as well, so you don’t have to sacrifice usability for the best-in-class environmental efficiency offered by a narrow vehicle fuselage, whether you’re in the pilot or the “gunner” seat. The tandem seating configuration also provides optimal occupant balance on the centerline of Arcimoto’s three-wheeled platform.

Three-Wheeled Motorcycle

The Federal Motor Vehicle code defines a motorcycle as “a motor vehicle … designed to travel on not more than three wheels in contact with ground” (49 CFR 571.3). Despite the SRK’s motorcycle designation, states including California allow the operation of three-wheeled motorcycles and motorcycles with sidecars with a standard driver's license (CVC 12804.9). Most states allow motorcycles to be driven alone in carpool/HOV lanes. Arcimoto's unique platform positions the wheels in "tadpole" form (two wheels in front) for stability and traction during turning and improved braking performance.

Superior Ride Characteristics

Sporting front wheel drive, the Arcimoto SRK rides like a dream. More than two thirds of the vehicle curb weight is over the front drive and steering wheels, greatly increasing handling and stability. With a low center of gravity for optimal balance, racing-inspired suspension and clean, smooth, quiet acceleration the drive experience is pure joy, guilt free.

Familiar Automotive Controls

There’s nothing new to learn. The Arcimoto SRK features standard automotive controls: a steering wheel, accelerator pedal, and brake pedal. You don’t have to change the way you drive. Just do it more efficiently.

Target Specifications

Specifications are not final

PERFORMANCE

Top speed: 75 mph
Acceleration: 0-60mph in 8.6 seconds
Range: 40 standard; 80 or 120 miles with battery upgrade
Turning circle (curb-to-curb): 31 feet

GENERAL

Curb Weight: 1,500 lb
Gross Weight: 2,200 lb
Configuration: 3-wheel, "tadpole"
Weight distribution (front/rear): 70/30
Wheelbase: 87 in
Track width: 58 in
Length overall: 124 in
Width overall (at wheels): 69 in
Width (at fuselage): 34.5 in
Height overall: 56 in
Ground clearance: 5 in
Frame construction: Welded tubular steel

ERGONOMICS

Steering: Steering wheel
Direction select: RND select on dash
Pedals: Accelerator and brake
Seating: 2 - driver and passenger in tandem (fore-aft)
Restraints: 4-point harness
Cockpit enclosure options: Semi-open, hard-panel enclosed
Door: Single door on curb-side
Cargo area: Plenty of room for groceries and golf clubs

DRIVE TRAIN

Motor horsepower (peak): 100 HP
Motor torque (peak): 230 ft-lb
Motor type: Series wound, brushed DC
Transmission type: Synchronous belt drive, fixed ratio
Transmission ratio: 5.67:1

SUSPENSION/STEERING

Front: Double “A” Arm with coil-over shocks and anti-sway bar
Rear: Single-sided tubular trailing arm with coil-over shock

Battery Pack

Capacity: 8.9kWh, 17.6kWh or 24.8kWh (varying amp-hours of cells for differing range options)
Chemistry: Lithium iron phosphate (LiFePO4)