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2013 KTM 450SX-F

2013 KTM 450SX-F

2013 KTM 450SX-F

2013 KTM 450SX-F Review

2013 KTM 450SX-F

A completely new, significantly lighter engine, featuring groundbreaking injection technology, guarantees brutal yet controllable power. Packed into a chassis, which has been improved massively in terms of bodywork, frame and suspension, the 2013 KTM 450 SX-F sets a new benchmark among the 450 four-strokes in terms of performance and maneuverability with its easy handling.

 

2013 KTM 450SX-F Features and Benefits

ENGINE

Less weight, less maintenance. But, because you can’t save on everything, the 449.3 cm³ (27.418 cu in) SOHC SX-F engine offers one major plus: more power. If you combine the 4.4 pounds saved by the more compact design with the unbelievable 60 hp, you end up with unparalleled power development and handling previously unheard of in the 450 class.

CYLINDER HEAD

This is precision engineering: a cylinder head reconfigured for optimal motocross characteristics with a very broad rev range. In this extremely compact and lightweight construction, only one camshaft specially designed for the KTM SX-F actuates four titanium valves via weight-reduced rocker arms (DLC-coated on the intake side). Together with ultra-light valve springs and spring retainers, a maximum engine speed of up to 11,500 rpm can be achieved for maximum power.

CRANKSHAFT

The crankshaft on the new KTM 450 SX-F with a 63.4 mm (2.496 in) stroke is equipped for 2013 with a revolutionary plain bearing in the lower conrod eye. This means that the conventional needle bearing is replaced by 2 press-fit bearing shells in the ultra-light Pankl connecting rod, which run directly on the crankshaft’s additionally reinforced crank pin. The sliding bearing is supplied with oil directly from the pressurised oil circuit via the crankshaft. In other words: No problem when it comes to rev limits, and the need for servicing the crankshaft is halved. And, because the gyrating mass has been reduced, the bike has more bite and it’s even more agile and dynamic.

FRAME

The modern frame design of lightweight, high-strength, chromoly steel section tubes guarantees an ideal mix of longitudinal and torsional stiffness, resulting not only in easy handling and precise steering behavior, but also in excellent ride stability. The four-stroke frames in MY 2013 feature a stiffer frame triangle and thinner-walled down tubes. This leads to an improvement in tracking stability (increased torsional stiffness) accompanied by a reduction in weight. The engine braces to the cylinder head have also been optimized, along with their attachment to the frame. The frame features a new color on the 2013 KTM 450 SX-F and it is still the benchmark in terms of weight and stability.

FORK

The further improved 48 mm (1.89 in) upside-down fork featuring closed-cartridge technology has been optimized with completely revamped settings developed in the United States for perfect harmony with the new frame and engine. The new oil is significantly more wear-resistant and guarantees more consistent damping throughout both the course of a race and the bike’s life cycle. A new lower triple clamp is 80 g (2.82 oz) lighter and, just like the upper triple clamp, CNC-machined from high-quality aluminum, whereby the steering characteristics, and hence, the responsiveness of the fork have been noticeably improved.

SWINGARM

The cast aluminum swingarm has been developed with state-of-the-art calculation and simulation software and constructed, in terms of design and wall thickness, for minimum weight with optimum stiffness and sufficient flex. For the 2013 model year, engineers have redesigned the rear section of the swingarm to allow installation of a thicker rear wheel axle (25 mm (0.98 in) instead of 20 mm (0.79 in)) for the benefit of better tracking stability. Moreover, they have succeeded in reducing weight by more than 100 g (3.53 oz) by revising the bolts, cups and nuts on the linkage.

CLUTCH

A DDS clutch (Damped Diaphragm Steel) with a wear-free steel cage is fitted to the new KTM SX-F engine, allowing use of thin steel discs for minimum overall width. The diaphragm spring, which preloads the package, not only reduces the operating force required to pull the clutch, but also provides space for integrated hub damping. The result: more traction and protection for the transmission. And with hydraulic clutch actuation from Brembo, the rider has everything under control right from the start.

ELECTRIC STARTER

Every milli-second counts when starting. That’s why the new KTM 450 SX-F can also be started simply at the press of a button. This is an invaluable benefit in the heat of a motocross battle.

BODYWORK

Visually the completely revamped bodywork indicates that the 2013 model year represents a new SX generation. Above all, the ergonomics and function of the plastics have been designed in such a way that the whole chassis and engine package forms a perfect harmony with the rider down to the very last detail. The fuel tank and spoiler have been restyled along with the airbox cover and the front fender, including the front number plate. A particular highlight is the new front fender, which has no ribbing on the inside, to prevent mud build-up. A pioneering structure and improved attachment of the fender to the triple clamp result in up to 50% greater lateral stiffness.

 

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2013 KTM 450SX-F – USA Specifications/Technical Details
US MSRP Price: See dealer for pricing in USD

ENGINE
Design 1-cylinder 4-stroke engine, water-cooled
Displacement 449.3 cm³ (27.418 cu in)
Bore 95 mm (3.74 in)
Stroke 63.4 mm (2.496 in)
Starting aid Electric starter
Gearbox 5-gear, claw shifted
Engine lubrication Pressure circulation lubrication with two Eaton pumps
Primary transmission 32:76
Secondary ratio 14:50
Cooling Water cooling, permanent circulation of coolant by water pump
Clutch Multidisc clutch in oil bath/hydraulically activated
Ignition Contactless controlled fully electronic ignition with digital ignition adjustment
CHASSIS
Frame Central tube frame made of chrome molybdenum steel tubing
Fork WP Suspension Up Side Down 4860 MXMA CC
Shock absorber WP Suspension 5018 BAVP DCC
Suspension travel Front 300 mm (11.81 in)
Suspension travel Rear 317 mm (12.48 in)
Brake system Disc brakes, brake calipers on floating bearings
Brake discs – diameter Front 260 mm (10.24 in)
Brake discs – diameter Rear 220 mm (8.66 in)
Chain 5/8 x 1/4″
Steering head angle 63.5°
Wheelbase 1,495±10 mm (58.86±0.39 in)
Ground clearance, unloaded 375 mm (14.76 in)
Seat height, unloaded 992 mm (39.06 in)
Total fuel tank capacity, approx. 7.5 l (1.98 US gal)
Super unleaded (ROZ 95/RON 95/PON 91)
Weight without fuel, approx. 106.2 kg (234.1 lb.)

 

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2013 KTM 450SX-F – Canadian Specifications/Technical Details
Canada MSRP Price: See dealer for pricing in CDN

ENGINE
Design 1-cylinder 4-stroke engine, water-cooled
Displacement 449.3 cm³ (27.418 cu in)
Bore 95 mm (3.74 in)
Stroke 63.4 mm (2.496 in)
Starting aid Electric starter
Gearbox 4-gear, claw shifted
Engine lubrication Pressure circulation lubrication with two Eaton pumps
Primary transmission 32:76
Secondary ratio 14:50
Cooling Water cooling, permanent circulation of coolant by water pump
Clutch Multidisc clutch in oil bath/hydraulically activated
Ignition Contactless controlled fully electronic ignition with digital ignition adjustment
CHASSIS
Frame Central tube frame made of chrome molybdenum steel tubing
Fork WP Suspension Up Side Down 4860 MXMA CC
Shock absorber WP Suspension 5018 BAVP DCC
Suspension travel Front 300 mm (11.81 in)
Suspension travel Rear 330 mm (12.99 in)
Brake system Disc brakes, brake calipers on floating bearings
Brake discs – diameter Front 260 mm (10.24 in)
Brake discs – diameter Rear 220 mm (8.66 in)
Chain 5/8 x 1/4″
Steering head angle 63.5°
Wheelbase 1,495±10 mm (58.86±0.39 in)
Ground clearance, unloaded 375 mm (14.76 in)
Seat height, unloaded 992 mm (39.06 in)
Total fuel tank capacity, approx. 7.5 l (1.98 US gal)
Super unleaded (ROZ 95/RON 95/PON 91)
Weight without fuel, approx. 106.2 kg (234.1 lb.)

Prices and specifications subject to change without notice.

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2013 KTM 450SX-F – UK/Europe Specifications/Technical Details
UK/European MSRP Price: £6,895.00 GBP.

ENGINE
Design 1-cylinder 4-stroke engine, water-cooled
Displacement 449.3 cm³
Bore 95 mm
Stroke 63.4 mm
Starting aid Electric starter
Transmission 4-gear, claw shifted
Engine lubrication Pressure circulation lubrication with two Eaton pumps
Primary transmission 32:76
Secondary gear ratio 14:50
Cooling Water cooling, permanent circulation of coolant by water pump
Clutch Multidisc clutch in oil bath/hydraulically activated
Ignition Contactless controlled fully electronic ignition with digital ignition adjustment
CHASSIS
Frame Central tubular frame made from chrome molybdenum steel tubes
Forks WP Suspension Up Side Down 4860 MXMA CC
Shock absorber WP Suspension 5018 BAVP DCC
Suspension travel Front 300 mm
Suspension travel Rear 330 mm
Brake system Disc brakes, floating brake calipers
Brake discs – diameter front 260 mm
Brake discs – diameter rear 220 mm
Chain 5/8 x 1/4″
Steering head angle 63.5°
Wheel base 1,495±10 mm
Ground clearance (unloaded) 375 mm
Seat height (unloaded) 992 mm
Total fuel tank capacity approx. 7.5 l
Unleaded premium fuel (95 RON)
Weight without fuel approx. 106.2 kg

Prices and specifications subject to change without notice.

 

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2013 KTM 450SX-F – Australian Specifications/Technical Details
AU MSRP Price: See dealer for Pricing in AUD

Engine
Engine Type1-cylinder 4-stroke spark-ignition engine, liquid-cooled
Displacement449.3cm³
Bore / Stroke95/63.4mm
Compression Ratio12.6:1
Starter / BatteryElectric Start / 12V 3Ah
Transmission5 gear, claw shifted
Fuel ManagementKeihin EFI, throttle body 44mm
Control4 V / SOHC with rocker levers
LubricationPressure lubrication with 2 oil pumps
Primary Ratio32:76
Final Drive14:50
CoolingLiquid cooling system
ClutchWet multi-disc clutch / hydraulically operated
IgnitionKeihin EMS

Chassis
FrameCentral tube frame of chrome molybdenum steel tubing
Sub-Frame aluminium
HandlebarRenthal aluminium
Front SuspensionWP Suspension USD 4860 MXMA CC
Rear SuspensionWP Suspension 5018 BAVP DCC
Suspension Travel – Front / Rear300/330mm
Front / Rear BrakesDisc brake 260mm front / 220mm rear
Front / Rear Rims1.60 x 21″ / 2.15 x 19″ Excel
Front / Rear Tyres80/100-21″ / 100/90-19″
Chain5/8 x 1/4″
Silenceraluminium
Steering Head Angle63.5º
Wheel Base1495 ± 10mm
Ground Clearance371mm
Seat Height992mm
Tank Capacity approx.7.5l
Weight Without Fuel approx.106.4kg

Specifications, features and prices to change by manufacturer without notice. All information correct as of posted date.