2019 · Adventure · Buyer's Guide
Sharp Orange, Unfinished Business
KTM built this one around the 799 cc LC8c parallel twin, and the figures set the tone: 95 hp, 65 lb-ft, and drive that arrives early enough to be useful on a loose climb. The chassis is the real argument, though. A 21-inch front wheel, an 18-inch rear, 7.9 inches of travel front and rear and 9.2 inches of ground clearance put it firmly in the dirt-capable half of the middleweight adventure class rather than the styling-exercise half. Cornering ABS, traction control and ride-by-wire mapping are standard, along with a TFT dash, slipper clutch and adjustable seat height.
It rides like a KTM rather than a softened tourer: light on its feet, direct, happiest on a broken back road where the travel earns its keep. Setup is basic. The fork offers no adjustment at all, and the shock takes preload only. This is a machine for the rider who wants the dirt option left open on every trip, not one who wants everything smoothed over. The honest caveat is durability. The LC8c can wear camshaft lobes early, starting faults and immobiliser gremlins are documented, and two safety recalls cover the front brake master cylinder return spring and the rear brake line and lever screw. Buy on service history.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 95 hp (70 kW) @ 8,250 rpm |
|---|---|
| Torque | 65 lb-ft (88 Nm) @ 6,500 rpm |
| Displacement | 799 cc |
| Engine | Parallel twin |
| Cooling | Liquid-cooled |
| Gearbox | 6-speed |
| Final drive | Chain |
| Fork | Telescopic |
| Front brake | 320 mm |
| Front tire | 90/90-21 |
| Rear tire | 150/70-18 |
| Ground clearance | 9.2 in (234 mm) |
| Front travel | 7.9 in (200 mm) |
| Rear travel | 7.9 in (200 mm) |
| Wet weight | 450 lb (204 kg) |
| Fuel capacity | 5.3 gal (20 L) |
| Fuel economy | 56 mpg (US) |
Equipment check
Chassis
Comfort
Connectivity
Drivetrain
Lighting
Safety
The first thing your body registers is height. The 21-inch front and the long-legged stance put you up where you see over traffic, and the seat gives you a choice of two positions, which matters if you are short in the leg. The bars are wide, and standing on the pegs feels natural inside the first mile instead of something you have to negotiate. At 450 pounds wet it is no featherweight when you are pushing it around a gravel lot, but roll away and the mass folds into the steering and stops bothering you. The twin sends a hard, flat beat up through the pegs at cruising revs, texture rather than buzz, and it stays that way hour after hour. After dark the LED light throws a wide, useful pool, which counts when the day runs longer than you planned.
This section isn't my test ride. It's what I've picked up over years of listening: paddock talk at events, conversations with owners at gas stops and club nights, and the messages and emails riders send me directly about the bikes they actually live with. On the 790 Adventure the chatter runs in one clear direction. Riders talk about the chassis and the engine with real enthusiasm, then almost all of them add a list of small frustrations they've learned to work around.
The praise is consistent and it starts with what the bike does off pavement. Riders describe a light chassis, long travel and a torquey twin that let them take on genuinely rough ground with confidence, well beyond what they expected from a middleweight. The engine draws the same enthusiasm: it pulls from low revs, keeps spinning to the top, and owners talk about a raucous character that keeps both highway miles and trail sections interesting. Range comes up constantly too, with riders reporting well over 280 miles between fills from the low-slung tank. Comfort holds up on long days, with the adjustable seat and upright position suiting a broad spread of rider sizes. Even the fork and shock, with little adjustment on offer, get credit for plush, controlled damping on both surfaces.
Seat height leads the complaints. Riders under 5'9" report that even the lower setting is a stretch, and the width of the seat makes the reach to the ground worse. Fueling down low is the other recurring theme: in slow technical going or city traffic, owners find the throttle abrupt and hard to meter smoothly. Beyond that, a group of smaller issues shows up often enough to mention. Some riders deal with moisture fogging the inside of the TFT screen in rain or humidity. Owners running the optional quickshifter report false neutrals between first and second. And a number of them describe hard starting, with the engine needing several attempts before it catches.
Front brake master cylinder return spring (Recall KTB2106 / NHTSA 21V-304)
The preload force of the front brake master cylinder piston return spring may be too low, potentially impairing braking function. Affects 2019-2020 models.
Rear brake line and lever screw recall
A separate recall addresses a potential issue with the rear brake line or rear brake lever screw, which could lead to loss of rear braking.
Camshaft lobe premature wear
The LC8c parallel twin can suffer premature camshaft lobe wear, the hardened lobe surfaces breaking down far earlier than normal service life would suggest. Owners notice hard or reluctant starting, a metallic top-end rattle, and a gradual loss of power as valve lift falls away. Left unchecked the wear spreads to the followers and the cylinder head has to come apart for camshaft replacement.
Quickshifter false neutrals
The optional QuickShift+ can fail to engage second gear from first, resulting in a false neutral and sudden loss of drive. More common on early models.
Starting problems (hard start, multiple attempts)
Engine often requires two or three start attempts, especially when cold. May be related to ECU mapping; a firmware update may improve it.
Condensation in TFT dash display
Moisture builds up inside the instrument cluster, causing fog and possible electrical issues. Many owners report the problem, though KTM has not issued a fix.
Side stand switch failure
The side stand switch is known to malfunction, causing the bike to cut out or not start. Some owners bypass the switch entirely or relocate it.
Immobiliser fault
Some bikes suffer from immobiliser recognition problems, leaving the rider stranded even with the correct key.
Where this KTM 790 Adventure pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.
Power
Torque
Displacement
Wet weight
Forget spec-sheet bragging. Here's who the 790 Adventure is actually built for.
For 200 to 400 mile days on Highway 1 or the Blue Ridge it works well, and the range keeps stops rare. Accept that the 21-inch front trades some pavement sharpness for dirt ability, and that the screen doesn't adjust.
Made for Black Hills · Blue Ridge Parkway · Cherohala Skyway
The fuel range and load capacity suit big park routes. But two-up on a 450 pound middleweight, with luggage and cruise control both on the options list, is a compromise you have to genuinely want.
Made for Beartooth Highway · Blue Ridge Parkway · Going-to-the-Sun Road
This is your machine. Real ground clearance, real travel, fuel for long gaps between stations, and parts for everything. Buy one with a documented service record and plan around the camshaft issue.
Made for AZBDR — Arizona Backcountry Discovery Route · California BDR South · COBDR — Colorado Backcountry Discovery Route
If this one isn't quite the fit, these are the bikes worth riding back-to-back against it.
Any price note compares both bikes at the same age — the youngest age both have on the used market — against this KTM 790 Adventure. “cheaper/pricier” is what that bike costs second-hand, not how worn it is.
Successor · 2021–2024
Orange Attack, Low Center
Successor · 2023–2024
Road Bike In Adventure Skin
Competitor · 2019–2022
Stripped Down, Dirt Ready
Roughly $1,000 cheaper used than this bike at 6 yr
Competitor · 2018–2024
Luggage-Ready, Corner-Friendly Middleweight
~$1,300 pricier used than this bike at 7 yr