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ID # 21083775

2023 KTM 300 SX

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Overview

Maximum power at the least possible weight, amplified by low maintenance costs and smooth, linear power delivery - the 2023 KTM 300 SX is set to take the MX Open category back to school. Churning out more than enough power from an engine weighing only 52.6 lb, the KTM 300 SX sets the benchmark when it comes to power to weight ratios. Could the 2023 KTM 300 SX be the new Open Class president?

Specifications

Model

300 SX

Year

2023

Sale Type

New

Manufacturer

KTM

Engine Size

293.2 cm³

EMS

Vitesco Technologies EMS

BORE

72 mm

CHAIN

X-Ring 5/8 x 1/4"

CLUTCH

Wet multi-disc DS clutch, Brembo hydraulics

DESIGN

1-cylinder, 2-stroke engine

STROKE

72 mm

STARTER

Electric starter

REAR BRAKE

Disc brake

FRONT BRAKE

Disc brake

SEAT HEIGHT

958 mm

DISPLACEMENT

293.2 cm³

FRAME DESIGN

Central double-cradle-type 25CrMo4 steel

TRANSMISSION

5-speed

REAR SUSPENSION

WP XACT Monoshock with linkage

FRONT SUSPENSION

WP XACT-USD, Ø 48 mm

GROUND CLEARANCE

354 mm

STEERING HEAD ANGLE

63.9 °

WEIGHT (WITHOUT FUEL)

99.4 kg

TANK CAPACITY (APPROX.)

7.2 l

REAR BRAKE DISC DIAMETER

220 mm

SUSPENSION TRAVEL (REAR)

300 mm

FRONT BRAKE DISC DIAMETER

260 mm

SUSPENSION TRAVEL (FRONT)

310 mm

before the gate

Easy Suspension Adjustment

Get dialed in! The 2023 KTM SX range boasts totally tool-free suspension setup at both ends. Thanks to an all-new shock absorber design featuring hand-adjustable dual compression control, it allows riders to adjust high- and low-speed settings in a matter of seconds. On the front end, the forks are also easily adjusted thanks to a single air pressure preload valve, as well as through easy access click adjusters for compression and rebound. We'll even throw the air pump in as standard.

Electronic Fuel Injection

Pre-mix gets a remix across the 2-stroke KTM SX range, with Electronic Fuel Injection setting the standard. Now there's no more jetting setup pre-race. And thanks to the all-new Keihin EFI and reed valve case design, you can be guaranteed of laying down optimal power at any altitude, all of the time.

Electric Start

Picture this; You're 7 laps into an absolute ripper of a race. You miss your line and end up stalling in a deep rut. But you don't sweat it. All you do is press the starter button and you blast off again to take the final flag. This is the reality on the 2023 KTM 300 SX. Thanks to a 12.8V 2 Ah lithium ion battery placed under the rider’s seat, a new high-quality stator and pickup and super robust design, the days of kick-starting are over.

start strong

EFI + Power Valve

With EFI comes great rideability. Along with the electronic fuel injection, a new Power Valve has also been fitted to the KTM 300 SX, allowing for more usable power throughout the rev range. Smoother power means better traction. Better traction means holeshot heaven!

Performance

The new 300 cc 2-stroke powerhouse brings a new choice of weapon into the MX Open category and provides more choice for racers looking for maximum power at the least possible weight. Along with low maintenance costs, massive power on tap, and an overall engine weight of just 52.6 lb, the 2023 KTM 300 SX provides pure performance. And then some.

Selectable Maps

The 2023 KTM 300 SX features a map select switch allowing the racer to switch between 2 engine maps. Map 1 provides a linear, predictable power delivery, while Map 2 gives it the full beans with crisp, explosive power output.

calm under fire

Absolute Control

No matter how gnarly the track is, you'll stay in complete control thanks to an all-new frame design that has not only been engineered for longitudinal rigidity but also repositions rotating mass closer to the center of gravity. A new shock mounting also provides improved anti-squat behavior to better traction out of corners, while the footpeg mounting position has moved inwards for less risk of hooking up in deep ruts or when scrubbing jumps.

Ergonomics

The 2023 KTM SX and SX-F range feature an entirely new and improved rider triangle, providing improved knee contact - especially when standing on the pegs - with improved gripping surfaces all around. New plastics work to expel mud buildup in wet, muddy conditions, with a new, flatter seat profile and high grip seat cover providing exceptional rider movement and control. The polyamide reinforced aluminum subframe further enhances rider feel and feedback.

Mass Centralization

With a major emphasis placed on mass centralization, the 2023 KTM 300 SX engine is designed to centralize rotating mass for optimal operation with the chassis. This results in a lighter, more agile handling feel that simply runs rings around the competition.

hit the big stuff

Traction

Ready to rip your arms out of the sockets? Together with the benefits of mass centralization and an overall lighter feel, the anti-squat behavior of the chassis is significantly improved by changing the backbone of the steel frame concept. In layman's terms, the 2023 KTM 300 SX gets its power down perfectly when tearing out of corners.

WP XACT Fork

48 mm air type WP XACT front fork with a split damping function provides all the confidence you need to attack the track. New hydrostops in the fork legs improve bottoming-out resistance and account for less rebound when attacking big jumps, bumps, and thumps. Redesigned fork protection rings also increase protection against dirt, making them as reliable as they are awesome.

Stability

The 2023 KTM 300 SX is rock-solid at any speed thanks to a repositioned and forged steering head connection and CNC milled triple clamps. Made from high-grade aluminum, these feature optimally tuned steering stem stiffness, perfect alignment of the fork tubes, and precise geometry of the fork clamps to ensure highly responsive and smooth fork action - not to mention unwavering stability when charging across ruts and onto the podium.

maintaining momentum

Energy absorption

Besides the expertly crafted, hydro-formed, laser-cut, and robot-welded frame being engineered to provide exceptional rider feedback and straight-line stability, it consists of specifically calculated parameters of longitudinal and torsional flex. This means the frame acts as a "shock absorber" of sorts, making for a less harsh ride, resulting in less rider fatigue over many hard laps.

Ground clearance

The all-new frame and shock absorber geometry on the 2023 KTM 300 SX improve ground clearance of the linkage, with all-new topology optimized die-cast footpegs that are less susceptible to hooking on deep ruts, and take-offs when scrubbing.

Consistency

A new WP XACT shock absorber provides unmatched consistency lap after lap, thanks to low-friction SKF linkage seals and advanced damping characteristics for unsurpassed traction and energy absorption.