KTM 85 SX Specifications

Either end of the 2025 KTM 85 SX's WP XACT suspension is adjustable. Upfront, the WP XACT AER fork can be easily adjusted with the use of an air pump. This allows riders to tailor the KTM 85 SX to their specifications, weight, or track conditions. At the rear, the new WP XACT monoshock is fully adjustable for preload, compression, and rebound.

Bringing this little screamer to a stop is down to the Formula brake system with radial calipers - four pistons in front, two in the rear - with lightweight Wave brake discs. The system is the benchmark in terms of controlled action and braking performance, ensuring powerful and confident braking.

The KTM 85 SX is fitted with a race-proven MIKUNI TMX carburetor with a 38 mm flat slide. This provides buttery smooth and controllable power all the way up to the rev limiter, while the angle of the intake manifold reduces any overflow of fuel. It's also less sensitive to different altitudes and temperatures, so you can pin it wherever, whenever.

Ultra-durable thanks to modified clutch components, the 2024 KTM 85 SX allows riders to actuate the clutch level with ease, thanks to the FORMULA hydraulic system, which conveniently ensures that play is always compensated for. This means the clutch "bite" point remains consistent throughout the ride and under all conditions.

The crankcases are manufactured using a high-pressure die-cast production process, keeping wall thickness to a minimum while retaining strength and durability. The design of the cases is very compact and aims at positioning the shaft arrangements as close as possible to the center of gravity, contributing to better handling.

The KTM 85 SX features a lightweight crankshaft with optimized balancing for reduced vibration and oscillating mass. As light as the crankshaft is, the rotational inertia has not been compromised, ensuring maximum torque and revs, as well as easy rideability.

The cylinder on the KTM 85 SX has a bore and stroke of 47mm and 48.95 mm respectively. It features a sophisticated power valve system, which controls both the exhaust valve and the sub exhaust ports, giving the bike excellent torque and power delivery.

Rocking an all-new white and orange color plastics combination and orange seat cover - not to mention bold, black, orange and purple graphics - the 2024 KTM 85 SX lines up behind the gate with pure race-winning intent.

Hang on tight - the KTM 85 SX features a strong, lightweight, tapered aluminum handlebar, with a specifically shaped bend to suit its overall ergonomics. Additionally, the bike comes standard with ODI lock-on grips, which include a vulcanized grip on the right side and a lock-on grip on the left that do not require glue or wire for mounting.

The KTM 85 SX features new state-of-the-art radiators produced by Pankl, inspired by the full-size SX concept. These feature the same design, albeit shortened to fit the 85cc needs and size, and work to ensure the engine is running at optimal temperatures when being ripped around the track, lap after lap.

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 it's its undeniable READY TO RACE and 'orange' heritage.

The one-piece swingarm is manufactured using a gravity die-cast production process for exceptional strength at the lowest possible weight.

The 2024 KTM 85 SX features a 'big wheel' Excel rim combo powdercoated in black, with a 19-inch front wheel and a 16-inch rear. These are mounted on CNC-machined hubs and wrapped in new MAXXIS MX-ST tires which deliver exceptional straight-line stability and excellent traction when chasing the holeshot.