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2025 KTM 85 SX 19/16

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Specs and Features

ENGINE

Primary drive

20:64

Transmission

6-speed

Secondary gear ratio

13:49

Starter

Kickstarter

Stroke

48.95 mm

Bore

47 mm

Clutch

Wet, multi-disc clutch, Formula hydraulics

Displacement

84.9 cm³

Design

1-cylinder, 2-stroke engine

Fuel-mixture generation

Keihin PWK 28

Chassis

Weight (without fuel)

69 kg

Tank capacity (approx.)

5.4 l

Wheelbase

1.282 mm

Front brake disc diameter

240 mm

Rear brake disc diameter

220 mm

Front brake

Disc brake

Rear brake

Disc brake

Chain

428, Non-sealed

Frame design

Central-tube frame with double-cradle

Front suspension

XACT 43 WP Upside-Down fork, Ø 43 mm

Ground clearance

333 mm

Handlebar

Tapered aluminum Ø 28/22 mm

Rear suspension

XACT WP PDS mono shock

Seat height

871 mm

Silencer

Aluminium

Steering head angle

63.5 °

Rear subframe design

Aluminum-reinforced polyamide

Suspension travel (front)

278 mm

Suspension travel (rear)

289 mm

Tyre dimensions (front/rear)

70/100; 90/100

Wheels

1.60 x 19"; 1.85 x 16"

2025 KTM 85 SX 19/16

Ready to step up into the big leagues? The 2025 KTM 85 SX is ready to take you there. Developed on track and at an international level, the KTM 85 SX boasts significantly enhanced handling, improved power delivery, and notable enhancements in race pace over longer distances. All said - the KTM 85 SX is 100% READY TO RACE.

Adjustable Suspension

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.

Engine

Give your KTM 125 SX more bite with a 125 Factory Performance Kit. Comprising of upgraded engine parts, FMF exhaust, and special engine mapping, it provides a strong power increase across the rpm range.

Ergonomics

Meet the 2025 KTM 85 SX in a dark alley, and you'd be forgiven for thinking it was one of its bigger siblings. With a carefully scaled-down design that mimics that of the full-sized KTM SX range, this little weapon has unparalleled aesthetic appeal. What's more, it also provides young riders with an exceptional riding experience and sensation, getting them ready to step up to the big leagues.

Frame

For 2025, the KTM SX and SX-F range has given the WP XACT AER fork and WP XACT rear shock an update. This means you'll be lining up at the starting gate with re-tuned settings, reduced weight, improved weight distribution, and an increase in overall response.

Radiators

The 2025 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.

2025 KTM 85 SX 19/16

Specs and Features

2025 KTM 85 SX 19/16

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