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2024 KTM 790 Duke Review
Point a KTM 790 Duke toward twisty roads, and you’ll want to keep riding till dark. (Photos by James Martinec.)
What a rider wants from a new motorcycle isn’t always what’s needed. I want a Mustang, but I drive an Accord. I want a KTM 990 Duke, but I’d happily settle for a KTM 790 Duke, which provides about 90% of what makes a 990 Duke great but at a 24% discount.
Stickering at $9,499, the 790 Duke offers European design and high-tech features for a price only $500 higher than the Suzuki GSX-S8S and $1,200 less than the Aprilia Tuono 660.
KTM first introduced the 790 Duke in 2017, and the 2024 version proves it’s no fly-by-night operation.
Introduced in 2017 with the LC8c parallel-Twin engine, the 790 Duke was replaced in KTM’s lineup by the 2021 890 Duke before being reintroduced in 2023. The 790 Duke retailed for $10,699 in 2020, but the lower costs of production by CFMoto in China have reduced its MSRP.
The Duke’s riding position is accommodating for most riders, with a tallish seat (32.5 in.) allowing decent leg space to the marginally rear-set footpegs. Short riders might prefer KTM’s accessory seat, which lowers the height to 31.7 in. The saddle has ample fore/aft space to accommodate taller riders.
The 790 Duke’s 4-inch TFT instrumentation is relatively small but clearly relays info in a simple and easy-to-navigate arrangement. Here you can see ABS has been set to Supermoto mode, which switches off rear ABS. The forgetful old-timer in me laments the lack of self-canceling turnsignals.
A 4-inch color TFT display reports pertinent information, including ride modes (Rain, Street, and Sport) and traction control settings. The electronic system also includes an IMU to inform lean-sensitive TC and cornering ABS.
This view of the 790 Duke displays KTM’s keen European design. The cast-aluminum subframe incorporates the engine’s airbox, where it breathes through intakes on both sides and allows simple air-cleaner servicing.
Optional features include Quickshifter+ ($447) and Track mode ($378), which includes an aggressive engine map, customizable traction-control settings (0 to 9), launch control, and the ability to switch off wheelie control. Our test bike was fitted with the Tech Pack, which includes the quickshifter, Track mode, and adjustable Motor Slip Regulation for $819. Buyers can also add cruise control and tire-pressure monitoring.
Smart compromises: Maxxis Supermaxx ST tires are plenty grippy; a radial-pump master cylinder sends fluid through braided-steel lines to radially mounted J.Juan brake calipers biting on Galfer rotors. It also has angled valve stems (not visible here) that are a convenient feature too often lacking from similar bikes.
The 790 Duke excels with an enviable smiles-per-mile ratio. It’s simultaneously easy to ride and thrilling, with a 105-hp punch that’ll keep up with most any other bike on public roads at street speeds. The 790 is down 148cc and 16 ponies on its bigger brother, the 990 Duke, yet its power delivery is delightful and rousing.
Considering the hooligan capabilities of the 790 Duke, it makes for a surprisingly versatile machine for bopping around town.
The 799cc parallel-Twin uses a 75-degree crankpin angle and 435-degree firing order to make it sound similar to a V-Twin. It feels a bit coarse, but dual counterbalancers keep vibrations unintrusive. The 790’s motor barks authoritatively within regulations and pleases ears with a fun burble spitting out the exhaust while engine braking during decel.
The 790 Duke is a veritable riot on an empty backroad.
Also lively is the chassis, steering with the sprightliness of a bike much lighter than the 406-lb curb weight claimed from KTM. It willingly heels over with a mild shove on its handlebar and responds with precision. For context, recall that Chris Fillmore won the Middleweight class at the 2018 Pikes Peak International Hill Climb aboard a 790 Duke, finishing just 4 seconds behind two Open-class racers to take third overall.
Read all of our KTM reviews here.
“The Scalpel” is KTM’s term for the 790 Duke, and it lives up to that monicker when carving corners with enviable agility. A steering damper eliminates any headshake concerns.
When building a bike that will sell for less than $10K, some cost-cutting measures are necessary. Instead of Brembo monoblock brakes, the 790 Duke uses a pair of J.Juan two-piece calipers biting on 300mm rotors. However, the calipers are radially mounted and apply force via a radial-pump master cylinder, resulting in excellent feedback with a surplus of power, even if they don’t have the stellar level of sophistication as a set of Stylemas.
The middleweight Duke has an excellent example of how to design a stylish EPA-legal exhaust system. It uses a jug of a canister mounted between the engine and rear tire, terminating in an attractive high-mount brushed-aluminum muffler.
The 790’s suspension is a similar compromise of cost and performance. Made by KTM subsidiary WP, it uses a 43mm inverted fork that has no provisions for adjustments, and the rear shock is adjustable only for rear preload. Both have progressive-rate springs to cope with a variety of loads. They provided a cushy but controlled ride under my slight weight (150 lb), with plenty of rear preload still available.
The ergonomics of the 790 Duke accommodate riders of various sizes, although tall riders might wish for more legroom. Passengers enjoy a surprisingly comfy seat and the security of a grab handle.
GEAR UP
Helmet: Arai XD-5
Jacket: Alpinestars T SP-5 Rideknit
Vest: Alpinestars Tech-Air 3 Leather
Gloves: Alpinestars GPX V2
Pants: Alpinestars Copper
Boots: Alpinestars Grange
The engine is amazingly grunty for the pedestrian version of KTM’s parallel-Twins, a willing accomplice for motoring around town or unleashing on a canyon road. Its only foible is a nearly imperceptible surging with small throttle openings at lower revs, which seems a bit unrefined for a premium-adjacent bike.
Although not a powerhouse relative to its 990 and 1290 Duke brothers, the 790 Duke’s 105 hp is plenty enough to blur the scenery.
The 790 Duke’s slip/assist clutch has an easy pull and works seamlessly, but the least-polished aspect of the powerplant is its gearbox, which feels imprecise relative to many of the excellent trannies currently on the market. It’s not bad or troublesome, but it isn’t always slick.
Sharp creases are the hallmark of KTM’s Dukes.
Similarly, the Duke’s quickshifter doesn’t operate with the smoothness felt from other contemporary quickshift systems like the one fitted to Triumph’s Street Triple 765 (itself a worthy rival to this Duke, with 120 hp and a price starting at $10,595), so I preferred the smoother shifts provided by manual application.
But these are the only nits to pick with the 790 Duke, which otherwise satisfies in every way. It’s fun and friendly to hop on for errand-running, it’s relatively comfortable during highway jaunts, and it’s nearly spectacular when unwinding twisty canyon roads.
The 790 Duke features all-LED lighting and adjustable clutch and brake levers.
Sure, I’d prefer sharper brakes and a fully adjustable suspension, but what we’ve got here is leaps above merely adequate. It’s a highly functional blend of light weight and performance at a modest price point.
Related: KTM 200 Duke, 390 Duke, 890 Duke, and 1290 Super Duke R | Comparison Review
One of my all-time fave bikes is Suzuki’s SV650 (and I’m glad the SV remains in Suzuki’s current lineup 25 years later), but the KTM 790 Duke is like a faster, edgier SV, with an incomparable combination of usability, fun, and value with a European flavor.
The angular style of KTM’s Dukes doesn’t suit all tastes, but I like the looks of the 790, which nicely treads the line between garish and subtle.
Check out more new bikes in Rider’s 2024 Motorcycle Buyers Guide.
2024 KTM 790 Duke Specifications
Base Price: $9,499
Price as tested: $10,318
Warranty: 2 yrs., 24,000 miles
Website: KTM.com
ENGINE
Type: Liquid-cooled, transverse parallel-Twin, DOHC w/ 4 valves per cyl.
Displacement: 799cc
Bore x Stroke: 88.0 x 65.7mm
Horsepower: 105 hp @ 8,500 rpm (factory claim)
Torque: 64 lb-ft @ 8,000 rpm (factory claim)
Compression Ratio: 12.7:1
Fuel Delivery: EFI w/ throttle-by-wire, 46mm throttle bodies
Transmission: 6-speed, cable-actuated slip/assist wet clutch
Final Drive: Chain
CHASSIS
Frame: Chromoly tubular-steel trellis frame & aluminum subframe, aluminum swingarm
Wheelbase: 58.1 in.
Rake/Trail: 24.0 degrees/3.9 in.
Seat Height: 32.5 in.
Suspension, Front: WP Apex 43mm inverted fork, non-adj., 5.5 in. travel
Rear: WP Apex shock, w/ adj. spring preload, 5.9 in. travel
Brakes, Front: Dual 300mm discs w/ 4-piston radial calipers & cornering ABS
Rear: Single 240mm disc w/ 1-piston caliper & cornering ABS
Tires (F/R): 120/70-17, 180/55-17 Maxxis Supermaxx ST
Wet Weight: 406 lb
Fuel Capacity: 3.7 gal.
The post 2024 KTM 790 Duke Review appeared first on Rider Magazine.
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