Lightweight, powerful, and built for the most demanding terrain, the KTM 300 EXC HARDENDURO is engineered to perform in extreme technical enduro conditions. Combining a responsive 2-stroke engine with a precise and agile chassis, it delivers exceptional traction, control, and confidence across steep climbs, rock gardens, and unpredictable terrain. Built on KTM's proven 300 EXC platform, widely regarded as the benchmark for technical enduro performance, the KTM 300 EXC HARDENDURO amplifies this foundation for extreme conditions. Compared to the standard model, the KTM 300 EXC HARDENDURO features a purpose-built race package designed for riders tackling the toughest conditions on the planet. Built around a distinctive orange frame and equipped with a dedicated HARDENDURO component package, it reinforces its factory-level intent in extreme conditions.
This motorcycle is designed, developed and produced in Austria.
At its core, the KTM 300 EXC HARDENDURO delivers strong low-end torque and highly responsive power, making it ideal for technical hard enduro terrain where traction, precision, and control are critical. Equipped with advanced Throttle Body Injection (TBI) and a separate oil injection system, it ensures optimal fuel-air mixture and consistent performance across all conditions, reducing rider workload and ensuring reliable performance across varying altitudes and temperatures. Its lightweight design enhances agility, allowing riders to navigate tight, slow-speed technical sections with greater confidence and reduced fatigue.
RACE HARD. LAST LONGER.
Race-Ready Drivetrain
The KTM EXC drivetrain is engineered for durability and efficient power transfer in extreme conditions, ensuring consistent drive in high-load, low-speed scenarios typical of hard enduro. On the KTM 300 EXC HARDENDURO, this is complemented by a Supersprox stealth rear sprocket and additional HARDENDURO-specific components such as an orange oil plug and clutch slave cylinder protection, ensuring durability and reliability in the harshest environments.
PROTECTION WHEN IT GETS TOUGH
HARDENDURO Protection Package
Designed for extreme terrain, the HARDENDURO adds a comprehensive protection setup including a radiator fan, skid plate, frame protection set, and front and rear brake disc guards. Additional HARDENDURO components such as black anodized engine hangers further improve durability and resistance in extreme riding conditions.
PURE 2-STROKE RESPONSE. MAXIMUM CONTROL.
2-Stroke Power & TBI
At its core, the KTM 300 EXC HARDENDURO delivers strong low-end torque and highly responsive power, making it ideal for technical hard enduro terrain where traction, precision, and control are critical. Equipped with advanced Throttle Body Injection (TBI) and a separate oil injection system, it ensures optimal fuel-air mixture and consistent performance across all conditions, reducing rider workload and ensuring reliable performance across varying altitudes and temperatures. Its lightweight design enhances agility, allowing riders to navigate tight, slow-speed technical sections with greater confidence and reduced fatigue.
RACE HARD. LAST LONGER.
Race-Ready Drivetrain
The KTM EXC drivetrain is engineered for durability and efficient power transfer in extreme conditions, ensuring consistent drive in high-load, low-speed scenarios typical of hard enduro. On the KTM 300 EXC HARDENDURO, this is complemented by a Supersprox stealth rear sprocket and additional HARDENDURO-specific components such as an orange oil plug and clutch slave cylinder protection, ensuring durability and reliability in the harshest environments.
PROTECTION WHEN IT GETS TOUGH
HARDENDURO Protection Package
Designed for extreme terrain, the HARDENDURO adds a comprehensive protection setup including a radiator fan, skid plate, frame protection set, and front and rear brake disc guards. Additional HARDENDURO components such as black anodized engine hangers further improve durability and resistance in extreme riding conditions.
02. CHASSIS
DIAL IT IN - FAST.
WP XACT Closed Cartridge Fork
The KTM EXC range features 48 mm WP XACT Closed Cartridge forks, delivering consistent damping and precise control. With full adjustability of compression and rebound without tools, riders can quickly adapt suspension settings to changing terrain. For improved setup precision, the KTM 300 EXC HARDENDURO features preload adjusters for fast and accurate front-end tuning, allowing riders to fine-tune performance for slow, technical climbs or aggressive obstacle sections.
TRACTION THAT KEEPS YOU MOVING.
WP XPLOR PDS Rear Shock
The WP XPLOR PDS rear shock provides progressive damping, improving traction and maintaining ground clearance in extreme sections. Its low-maintenance design ensures consistent performance, helping maintain drive and rear-wheel traction over rocks, roots, and loose terrain.
STABILITY WHEN IT MATTERS MOST.
Race-Optimized Frame
Engineered for longitudinal rigidity, the KTM EXC frame delivers precise rider feedback, stability at speed, and confidence in technical terrain. The signature orange frame highlights its HARDENDURO identity while maintaining proven handling characteristics.
PINPOINT FRONT-END CONTROL.
CNC Triple Clamps & Steering Precision
Black anodized CNC-machined triple clamps improve front-end stiffness and alignment, delivering precise steering feedback. Combined with a front axle puller, they also support fast and efficient wheel servicing.
BRAKE LATER. STAY IN CONTROL.
High-Performance Braking System
The KTM 300 EXC HARDENDURO features a floating front brake disc and solid rear disc for strong and consistent braking performance. Additional protection components, including front and rear disc guards and a rear brake safety wire, ensure reliability in extreme terrain.
DIAL IT IN - FAST.
WP XACT Closed Cartridge Fork
The KTM EXC range features 48 mm WP XACT Closed Cartridge forks, delivering consistent damping and precise control. With full adjustability of compression and rebound without tools, riders can quickly adapt suspension settings to changing terrain. For improved setup precision, the KTM 300 EXC HARDENDURO features preload adjusters for fast and accurate front-end tuning, allowing riders to fine-tune performance for slow, technical climbs or aggressive obstacle sections.
TRACTION THAT KEEPS YOU MOVING.
WP XPLOR PDS Rear Shock
The WP XPLOR PDS rear shock provides progressive damping, improving traction and maintaining ground clearance in extreme sections. Its low-maintenance design ensures consistent performance, helping maintain drive and rear-wheel traction over rocks, roots, and loose terrain.
STABILITY WHEN IT MATTERS MOST.
Race-Optimized Frame
Engineered for longitudinal rigidity, the KTM EXC frame delivers precise rider feedback, stability at speed, and confidence in technical terrain. The signature orange frame highlights its HARDENDURO identity while maintaining proven handling characteristics.
PINPOINT FRONT-END CONTROL.
CNC Triple Clamps & Steering Precision
Black anodized CNC-machined triple clamps improve front-end stiffness and alignment, delivering precise steering feedback. Combined with a front axle puller, they also support fast and efficient wheel servicing.
BRAKE LATER. STAY IN CONTROL.
High-Performance Braking System
The KTM 300 EXC HARDENDURO features a floating front brake disc and solid rear disc for strong and consistent braking performance. Additional protection components, including front and rear disc guards and a rear brake safety wire, ensure reliability in extreme terrain.
03. SOFTWARE & ELECTRONICS
MATCH THE TERRAIN IN SECONDS.
Map-Select & Engine Management
A handlebar-mounted map-select switch allows riders to quickly adapt power delivery to different terrain. This system ensures optimal performance whether tackling technical climbs or fast sections.
SMART ELECTRICS. LESS COMPLEXITY.
Offroad Control Unit (OCU)
The Offroad Control Unit replaces traditional fuses and relays with a smart, integrated system. It continuously manages electrical outputs and automatically isolates faults, ensuring reliability and easy diagnostics in remote hard enduro environments where support is limited.
MATCH THE TERRAIN IN SECONDS.
Map-Select & Engine Management
A handlebar-mounted map-select switch allows riders to quickly adapt power delivery to different terrain. This system ensures optimal performance whether tackling technical climbs or fast sections.
SMART ELECTRICS. LESS COMPLEXITY.
Offroad Control Unit (OCU)
The Offroad Control Unit replaces traditional fuses and relays with a smart, integrated system. It continuously manages electrical outputs and automatically isolates faults, ensuring reliability and easy diagnostics in remote hard enduro environments where support is limited.
04. BODYWORK & GRAPHICS
CONTROL IN EVERY MOVE.
HARDENDURO Control Package
To improve rider control in extreme terrain, the KTM 300 EXC HARDENDURO is equipped with pull straps, soft ODI grips, a Hard Enduro-specific bar pad design, and closed handguards. These features enhance handling, reduce effort, and increase confidence in technical sections.
TRACTION YOU CAN TRUST.
Factory Wheel & Tire Setup
A high-strength factory wheel set, combined with Metzeler 6 DAYS Extreme tires, delivers exceptional grip, durability, and control across rocks, roots, and loose terrain.
LOCKED-IN RIDER CONTACT.
HARDENDURO Seat
The dedicated ribbed factory seat features a high-grip surface, improving stability and rider control. Combined with the platform's refined ergonomics, it enhances comfort and precision during long and demanding sections.
RACE-FOCUSED IDENTITY.
HARDENDURO Design
Distinctive HARDENDURO graphics and premium finishes clearly differentiate the model, reinforcing its purpose-built character for extreme enduro riding.
CONTROL IN EVERY MOVE.
HARDENDURO Control Package
To improve rider control in extreme terrain, the KTM 300 EXC HARDENDURO is equipped with pull straps, soft ODI grips, a Hard Enduro-specific bar pad design, and closed handguards. These features enhance handling, reduce effort, and increase confidence in technical sections.
TRACTION YOU CAN TRUST.
Factory Wheel & Tire Setup
A high-strength factory wheel set, combined with Metzeler 6 DAYS Extreme tires, delivers exceptional grip, durability, and control across rocks, roots, and loose terrain.
LOCKED-IN RIDER CONTACT.
HARDENDURO Seat
The dedicated ribbed factory seat features a high-grip surface, improving stability and rider control. Combined with the platform's refined ergonomics, it enhances comfort and precision during long and demanding sections.
RACE-FOCUSED IDENTITY.
HARDENDURO Design
Distinctive HARDENDURO graphics and premium finishes clearly differentiate the model, reinforcing its purpose-built character for extreme enduro riding.
This motorcycle comes with a Premium Manufacturer's Warranty. Riders enjoy up to 1 year of coverage and experience the thrill of offroad riding with added peace of mind. To keep the warranty valid, always follow the guidelines outlined in your motorcycle's Owner's Manual, including using the bike as intended and completing all scheduled services at an authorized KTM dealer. The standard manufacturer's warranty conditions, as specified in the delivery certificate, also remain applicable. More information and details on how to benefit from this offer can be found on the KTM warranty page. Valid from Model Year 2027 onwards for all offroad motorcycles as well as the 450 SMR.
This motorcycle comes with a Premium Manufacturer's Warranty. Riders enjoy up to 1 year of coverage and experience the thrill of offroad riding with added peace of mind. To keep the warranty valid, always follow the guidelines outlined in your motorcycle's Owner's Manual, including using the bike as intended and completing all scheduled services at an authorized KTM dealer. The standard manufacturer's warranty conditions, as specified in the delivery certificate, also remain applicable. More information and details on how to benefit from this offer can be found on the KTM warranty page. Valid from Model Year 2027 onwards for all offroad motorcycles as well as the 450 SMR.
