2024 KTM 85 SX 19/16 Dirt Bike Review Specs Price

If you are reading this, then it’s safe to say things have become serious. The 2024 KTM 85 SX 19/16 Dirt Bike – in big-wheel guise – is the first real step into the big leagues. With its compact design, lightweight construction, high power output, and proven reliability, the KTM 85 SX packs real big-bike components into mini 85 cc geometry for the perfect launch of any young racing career.

2024 KTM 85 SX 19/16 Dirt Bike – Features and Specs

Engine

KTM‘s race-winning 2-stroke combination was extremely challenging to fit into this model’s compact engine. A 6-speed gearbox mates to a super-compact powerplant, delivering class-leading power and rideability across the entire rev range. The power valve fine-tunes power delivery to match track conditions and rider skill—leaving the competition in awe of its performance.

Cylinder

The 2024 KTM 85 SX 19/16 Dirt Bike has a 47mm cylinder bore and a 48.95mm stroke. It has a complex power valve system – exhaust valve and sub-exhaust ports – for superb torque and power delivery. This delivers excellent midrange performance, so on loamy or sandy soils you won’t have to work the clutch nearly so hard. The power valve opening time can be adjusted with an adjuster screw to suit the rider’s preference and track conditions.

Crankcases and engine covers

Manufacture the crankcases using high-pressure die-casting to achieve minimum wall thickness, high strength, and durability. The cases are designed to be compact, keeping the shaft arrangement as close to the centre of gravity as possible for improved handling.

Also Read: 2024 KTM 85 SX 17/14 Dirt Motorcycle Review

Transmission

The 2024 KTM 85 SX 19/16 Dirt Bike has a lightweight 6-speed gearbox, built for hard work. The gear ratio is engineered to suit the engine; shifting is easy and precise, letting the rider switch quickly and confidently to the next gear. Other gearbox features include a screw that holds the front sprocket to the driveshaft and a diaphragm spring, rather than a circlip, to keep the front sprocket snugly in place. As with all KTM SX models, the 2024 KTM 85 SX 19/16 Dirt Bike transmission has a “no-dirt” gear shifter which, like the footpeg design, prevents dirt build-up, like in 2023 KTM 85 SX 19/16.

Clutch

The 2024 KTM 85 SX 19/16 Dirt Bike’s clutch mechanism is optimised with its FORMULA hydraulic system, making it easy for the rider to adjust the clutch to any level. This keeps the “bite” point consistent, no matter what it’s going through during the ride.

Crankshaft

The 2024 KTM 85 SX 19/16 Dirt Bike features a lightweight crankshaft with optimal balancing to minimise vibration and rotating mass. Although it’s light as a crank, it doesn’t sacrifice rotational inertia, so you can achieve maximum torque and revs while keeping it extremely easy to ride.

Carburetor

A fully swung, race-tuned MIKUNI TMX flat slide 38mm carburettor is installed on the 2024 KTM 85 SX 19/16 Dirt Bike. This ensures smoother, more controlled power delivery from the rev limiter to the top, and the intake manifold angle minimises over-fueling. It is also less sensitive to altitude and temperature, and you can pin it wherever and whenever you want.

Cooling

Keeping the engine temperature at its optimum level is vitally important for consistent horsepower during the ride. The 2024 KTM 85 SX 19/16 Dirt Bike comes with a set of radiators positioned to lower the centre of gravity. They fit the shrouds like a dream and improve ergonomics with a clean, “slim” look.

The clever routing of the coolant system and innovative design ensure peak engine performance in any situation, with optimal engine temperature, thanks to CFD (computational fluid dynamics). The radiator protectors are also special, protecting against flying rocks and debris and dispersing energy around the radiators in the event of impact, while also providing a brace.

Exhaust

The exhaust system is designed to align the engine’s power characteristics and plays a key role in overall performance and rideability. A three-dimensional stamping process makes the header pipe. After forming, robots weld the components to ensure the highest quality, consistency, and durability. The compact, lightweight silicon silencer delivers a sweet 2-stroke sound and complies with race sound limits.

Frame

The 2024 KTM 85 SX 19/16 Dirt Bike frame is a downsized version of the fully championship-proven full-size frames. The frame is made of minimum-deviation, robot-welded, hydroformed chromium-molybdenum steel tubes and is pinpoint accurate for the highest level of consistent quality and flex.

Swingarm

The one-piece swingarm is produced via gravity die-casting to ensure maximum strength with minimal weight. The rear wheel can be adjusted over a broad range for a shorter wheelbase on tighter, twisty tracks and a longer wheelbase for extra stability on longer, choppier tracks. It makes adjustment easier and more accurate by letting you see the chain measurement markings on the swingarm from the top.

Subframe

This lightweight aluminium subframe offers stability and good support to the rear fenders, and it also contributes to the rigidity and handling of the 2024 KTM 85 SX 19/16 Dirt Bike.

Wheels

For 2024, the 2024 KTM 85 SX 19/16 Dirt Bike uses a ‘big wheel’ Excel rim combo powder-coated in black, with a 19″ front disc and a 16″ rear disc. They are installed on CNC-machined hubs and fitted with super straight-line stability and great traction holeshot tyres in the form of MAXXIS MX-ST.

Front suspension

The 2024 KTM 85 SX 19/16 Dirt Bike front fork uses the same suspension as the full-size motocross range. The WP XACT fork with AER technology features a split fork design with an encapsulated air spring in the left leg and the tried-and-true oil damping system in the right leg. Preload adjustment is extremely simple and can be adjusted using the single air pressure valve and supplied air pump. The design is also compressible and reboundable, making it easy to get to the clickers.

Rear suspension

The 2024 KTM 85 SX 19/16 Dirt Bike features the sophisticated PDS (Progressive Damping System) controlled WP XACT rear shock absorber. This model is programmed to run at a high rate and responds well to bumps and dips, similar to the larger bikes. It also provides a whopping 305 mm of rear-wheel travel and is adjustable for preload, compression and rebound.

Brakes

To stop this little screamer, it’s the Formula brake system that has radial callipers – there are four on the front and two on the rear – and lightweight Wave brake discs. The system is the standard for controlled action and braking, so that you can be sure of powerful, confident braking.

Airbox

There is no doubt the KTM 85 SX airbox is a piece of engineering brilliance, making maximum use of limited space to deliver performance and filter protection. The air filter is easily accessed, without using any tool, by removing the left side panel. The Twin Air filter and an all-new filter cage design provide an easy, secure mounting system, so you can maintain the filter quickly without spending too much time in the pits and more time winning races.

Fuel tank

The tank has an ideal capacity of 5.2 litres of pre-mixed fuel. It is designed to be small and slim for easy, unobstructed rider movement, yet still large enough to complete a full race at full throttle.

Handlebar

Hang on tight – the KTM 85 SXSX’s handlebar is strong, light, and tapered, with a specially engineered bend to support the overall ergonomics. The bike also features ODI lock-on grips that mount without glue or wire on the right side, with a lock-on grip on the left.

Footpegs

The 2024 KTM 85 SX 19/16 Dirt Bike features “no-dirt” footpegs with an effective self-cleaning system to ensure the footpegs always return to their normal position, with 100% control in all situations.

Seat

Providing the perfect blend of grip, durability and comfort, the 2024 KTM 85 SX seat does everything you’d expect it to, while showing off its undeniable READY TO RACE and ‘orange’ heritage.

Decals

The 2024 KTM 85 SX 19/16 Dirt Bike is ready to compete for victory – not just with the bold black, orange and purple graphics, but also with an all-white and orange colour combination of plastics and an orange seat cover.

2024 KTM 85 SX 19/16 Dirt Bike – Price

The new 2024 KTM 85 SX 19/16 Dirt Bike is available for only $ 6,899.

2024 KTM 85 SX 19/16 Dirt Bike – Technical Specifications

Engine

Chassis