2025 Krämer APX-350 MA
The Spec-bike for the MotoAmerica Talent Cup
MSRP: $22,495 - For Competition Use Only
Krämer Motorcycles is proud to announce the launch of its new APX line of motorcycles, aimed at the small-displacement category of motorcycle racing. The first model from this new lineup is the 2025 Krämer APX-350 MA race bike, which brings grand prix performance for a fraction of the cost. We are also honored to say that the Krämer APX-350 MA will hone the skills of America’s top young racers as the spec-bike in the new MotoAmerica Talent Cup.
The Krämer APX-350 MA is built around a true racing chassis that is fully adjustable and features premium components. Its 350cc single-cylinder engine comes from the KTM EXC-F and makes over 55hp. Fueled up and ready to race, the Krämer APX-350 MA weighs under 242 lbs. Advanced electronics come in the form of a Mectronik MKE7 race ECU, with an oversized throttle body and ride-by-wire throttle control system.
Available for delivery in February 2025, pricing for the Krämer APX-350 MA is set at $22,495. Units imported for the 2025 season will be limited, and priority will be given to MotoAmerica Talent Cup entrants based on order of deposit receipt. We encourage interested race teams to reserve their allocation as soon as possible.
Chassis: At the heart of the Krämer APX-350 MA is a chromium-molybdenum steel trellis frame that has been tuned for the ideal flex and feedback necessary for road racing. The chassis design has the ability to be adjusted at the headstock angle, triple-clamp offset, swingarm angle, seat height, rearset height, and handlebar angle, making it ideal for different riding styles and riders of differing sizes.
Fuel Cell: Built from cross-linked polyethylene, the 12-liter fuel cell is created using a rotational molding process, which results in a lightweight and durable design. A staple of Krämer ingenuity, a cutout is made in the fuel cell for easy access to suspension settings on the rear shock — one of many race-focused designs on the APX platform.
Engine: The Krämer APX-350 MA features a 350cc single-cylinder engine from the KTM EXC-F enduro motorcycle. Mated to a giant sealed airbox that has been optimized for maximum airflow to an oversized throttle body, peak power for the APX-350 MA will be a class-leading 55hp, before taking into account the ram-air effect on the intake. This power will be transmitted through a six-speed gearbox.
Ride-by-Wire: Throttle control on the APX-350 MA is fully digital, with a ride-by-wire system developed by Krämer Motorcycles in cooperation with Mectronik. This allows for robust engine braking control parameters, adjustable throttle maps, as well as precise ignition control for the up/down quickshifter.
Race ECU: The Krämer APX-350 MA features the Mectronik MKE7 race ECU, which should be a familiar sight for any hardcore race team. The APX-350 MA will ship with an engine calibration for VP Racing’s MGP-R Reg fuel (the spec fuel of MotoAmerica).
Data Ready: Owing to its race-built design, the Krämer APX-350 MA comes pre-wired for potentiometers that can be installed on the front and rear suspension, and is ready to use a number of data-logging solutions. The TFT dash from ECUMASTER displays key bike information and features an integrated GPS-powered lap timer.
Components: The Krämer APX-350 MA will come with premium components from WP Suspension for the forks and shock, a single front disk setup with a Brembo Stylema caliper, and Dunlop race slicks on lightweight 17” cast aluminum wheels.
Bodywork: The fiberglass bodywork on the APX-350 MA is extremely lightweight, but does not sacrifice durability. All mounting and high-stress points are reinforced with a carbon/aramid fiber composite. The front air intake is designed to help the engine breathe efficiently all the way to max revs.
2025 Krämer APX-350 MA Prototype Technical Specifications | |
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Engine |
Four-Stroke, Single-Cylinder, SOHC, Four-Valve, Liquid-Cooled |
Displacement | 349.7cc |
Bore x Stroke | 88 x 57.5 mm |
Compression Ratio | 13.7:1 |
Power | 55 hp @ 10,700 RPMA |
Torque | 27 lbs•ft @ 8,100 RPM |
Redline | 12,500 RPM |
Fuel System | Keihin DFI with 50mm Throttle Body |
Ignition | Mectronik MKE7 ECU with Ride-by-Wire Throttle |
E-Start | Standard |
Electronics | Adjustable Engine Brake Control and Throttle Mapping, Integrated Lap Timer, and Data Acquisition Ready |
Transmission | 6-Speed |
Clutch | Hydraulic |
Frame Type | Chromium-Molybdenum Steel-Trellis Frame |
Chassis Adjustment | Steering Head Angle, Swingarm Angle, and Triple Clamp Offset |
Ergonomics | Adjustable Seat Height, Clip-on Angle, and Rearset Height |
Seat Height | 32.2 inches (820mm) |
Curb Weight | 242 lbs / 110 kg |
Fuel Capacity | 12 Liters (3.17 US Gallons) |
Wheelbase | 53.39 in. (1,356mm) |
Steering Damper | Adjustable |
Final Drive | DID 520 Chain |
Front Suspension | WP USD 43mm Forks, Open Cartridge, Adjustable Pre-Load and Damping (Rebound/Compression) |
Rear Suspension | WP Monoshock, Adjustable Pre-Load and Damping (Rebound/Compression) |
Front Brakes | Single 320mm Floating Rotor, Single Brembo Stylema caliper, Radially Mounted |
Rear Brakes | Single 220mm Rotor, Formula Four-Piston Caliper |
Front Wheel | 17" x 3", Cast Aluminum Wheels |
Rear Wheel | 17" x 4", Cast Aluminum Wheels |
Body | Fiberglass Fairing with Carbon/Kevlar Reinforcement (Unpainted), XPE Plastic Fuel Tank/Seat |
Handlebars | CNC Handlebar Clamps with Replaceable Tubes |
Safety Wired | Standard |
*Technical Specifications subject to change without notice.
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