Everett Stone
6 min.

The sun hasn't yet crested the horizon as I stare at two machines that share the same heart but speak different languages of adventure. KTM's 390 Adventure twins represent more than just marketing differentiation – they're a recognition that "adventure" means something different to every rider who answers its call. After 3,000 miles on each variant across terrain ranging from high-desert single track to rain-slicked city streets, the true nature of this evolutionary split becomes clear.
The Heart: Engineering Meets Evolution

Thumb the starter on either variant and the revised LC4c Single barks to life with KTM's signature urgency. The engine note isn't just sound – it's a statement of intent. At 373cc, it's not the biggest thumper in the woods, but it might be the most eager. The revised airbox design, perched higher in the chassis like a predator's raised hackles, transforms every twist of the throttle into instant response.
That new gearbox, though – that's where you feel the evolution. Gone is the occasionally vague shift from the previous generation. Each gear change now clicks home with the kind of precision that makes you wonder if KTM's engineers spent time studying Swiss watchmakers. The spacing between 5th and 6th, once a slight hesitation in the bike's rhythm, now flows like poetry written in precision-machined steel.
The R Factor: Born for the Wild

Point the R variant at a horizon where pavement fears to tread, and you understand why KTM's rally heritage matters. At 34.2 inches, that seat height isn't just tall – it's purposeful. It's the kind of height that lets you read the trail like a book written in rocks and ruts, staying above the chaos instead of drowning in it.
The WP Apex suspension isn't just about numbers, though 9 inches of travel tells part of the story. It's about how that travel translates terrain into information. Those 30 clicks of compression and rebound adjustment aren't just settings – they're a conversation between you and the trail. Dial in the compression three clicks firmer, and suddenly that rock garden transforms from obstacle to opportunity.
Those Mitas Enduro Trail E07+ tires deserve their own chapter. On loose surfaces, they don't just grip – they interpret. The way they translate surface changes into usable feedback makes you wonder if Mitas engineers have some sort of pact with the physics of friction.
The X Factor: The Hybrid Warrior

Swing a leg over the X variant, and the family resemblance is clear but the mission changes completely. That 32.4-inch seat height isn't just lower – it's an invitation to riders who measure their adventures in urban jungle terms. The 19/17-inch cast wheel combination might sacrifice some off-road prowess, but the way it transforms city streets into a playground makes you question whether that's really a sacrifice at all.
The suspension might offer less adjustability than its dirt-focused sibling, but those 7.8 inches of travel speak a different dialect of speed. It's tuned for the kind of compliance that makes pot-holed city streets disappear while still maintaining the composure to handle the occasional fire road escape route.
Digital Intelligence Meets Mechanical Soul

Both variants share KTM's latest generation of electronic rider aids, but each uses them differently. The R's lean-sensitive ABS and traction control don't just manage traction – they interpret your intentions. That additional Rain mode the R carries isn't just about wet weather; it's about having another tool in your adventure arsenal.
The Bybre brakes – 320mm front disc matched with a 2-piston caliper, 240mm rear with single-piston – prove that stopping power isn't just about raw force. It's about control, about the kind of feedback that lets you dance on the edge of traction whether you're trail braking into a dirt switchback or navigating rain-slicked city streets.
The Reality of Choice
At $6,999, the R variant asks for a premium over the X's $5,899 price tag. But after thousands of miles on both, the question isn't about value – it's about honest self-assessment of where your adventure dreams lead. The R's sophisticated adaptability comes with demands – it expects you to use that extra suspension travel, to appreciate those spoked wheels, to venture where cell signals fear to tread.
The X's focused urban prowess isn't a compromise – it's a different interpretation of adventure. It's for riders who see city streets as their wilderness, who measure achievement in daily useability as much as weekend escape potential.
KTM 390 Adventure Variants:
- R Variant: $6,999 - Off-road focused with 9" suspension travel and spoked wheels
- X Variant: $5,899 - Urban-oriented with 7.8" suspension travel and cast wheels
The Bottom Line
KTM's split evolution of the 390 Adventure platform isn't just clever marketing – it's a recognition that adventure rides on multiple frequencies. Whether you're calculating your ride in latitude and longitude or in city blocks and bike lanes, there's now a 390 Adventure that speaks your language of exploration.
Specifications: The Numbers Behind the Experience
While riding impressions tell the emotional story, the specifications reveal the engineering decisions that shape each variant's personality. Here's how these siblings compare on paper:
KTM 390 Adventure R
Engine & Performance
- Engine: 373cc liquid-cooled DOHC single-cylinder
- Power: 43 hp @ 9,000 rpm
- Torque: 27 lb-ft @ 7,000 rpm
- Transmission: 6-speed with quickshifter
- Fuel System: Bosch EFI with 46mm throttle body
- Fuel Capacity: 3.8 gallons (14.5 liters)
Chassis & Suspension
- Frame: Steel trellis
- Front Suspension: WP APEX 43mm USD fork, 9.0 inches travel, fully adjustable
- Rear Suspension: WP APEX monoshock, 9.0 inches travel, adjustable preload and rebound
- Front Wheel: 21-inch spoked
- Rear Wheel: 18-inch spoked
- Tires: Mitas Enduro Trail E07+
- Front Brake: 320mm disc, 2-piston Bybre caliper, cornering ABS
- Rear Brake: 240mm disc, single-piston Bybre caliper, cornering ABS
Dimensions & Weight
- Seat Height: 34.2 inches (868mm)
- Ground Clearance: 9.4 inches (240mm)
- Wheelbase: 56.3 inches (1,430mm)
- Dry Weight: 348 lbs (158 kg)
Electronics & Features
- Ride Modes: Street, Offroad, Rain
- ABS: Cornering ABS with Offroad mode
- Traction Control: Cornering MTC with Offroad mode
- Display: 5-inch TFT with connectivity
- Lighting: Full LED with daytime running light
- Price: $6,999
KTM 390 Adventure X
Engine & Performance
- Engine: 373cc liquid-cooled DOHC single-cylinder
- Power: 43 hp @ 9,000 rpm
- Torque: 27 lb-ft @ 7,000 rpm
- Transmission: 6-speed
- Fuel System: Bosch EFI with 46mm throttle body
- Fuel Capacity: 3.8 gallons (14.5 liters)
Chassis & Suspension
- Frame: Steel trellis
- Front Suspension: WP APEX 43mm USD fork, 7.8 inches travel
- Rear Suspension: WP APEX monoshock, 7.8 inches travel, adjustable preload
- Front Wheel: 19-inch cast alloy
- Rear Wheel: 17-inch cast alloy
- Tires: Continental ContiTrail
- Front Brake: 320mm disc, 2-piston Bybre caliper, cornering ABS
- Rear Brake: 240mm disc, single-piston Bybre caliper, cornering ABS
Dimensions & Weight
- Seat Height: 32.4 inches (824mm)
- Ground Clearance: 7.8 inches (200mm)
- Wheelbase: 56.3 inches (1,430mm)
- Dry Weight: 339 lbs (154 kg)
Electronics & Features
- Ride Modes: Street, Offroad
- ABS: Cornering ABS with Offroad mode
- Traction Control: Cornering MTC
- Display: 5-inch TFT with connectivity
- Lighting: Full LED with daytime running light
- Price: $5,899
The numbers tell a clear story: the R variant commits fully to its off-road mission with taller suspension, wire-spoked wheels, and a comprehensive electronics package. Meanwhile, the X prioritizes urban accessibility with its lower seat height, cast wheels, and simplified suspension. These aren't just different trim levels – they're different interpretations of what adventure means.