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KTM 350 SX-F 2017: THE ULTIMATE COMBO

SKU
Utsalgspris kr79.900

Beskrivelse

Since Tony Cairoli first took a 350 SX-F to the top of the MX1 World Championship in 2010, the Red Bull KTM athlete has dominated the class aboard this nimble but powerful bike with 5 (five!) consecutive world championship titles. No surprises here, with the combination of 450-style muscle and the agility of a 250. Who said you can’t have everything?

ENGINE

The engine of the 350 SX-F features a

compact and very light (27.2kg) construction. Its

DOHC (double overheard camshaft) design

with lightweight titanium valves and DLC

coated finger followers allows for lively but

strong engine characteristics. Fitted with the

latest electronic fuel injection system and

electric starter, it has an extremely wide usable

speed range, high performance and incredibly

efficient rideability. The 350 SX-F engine

shares the same layout as the one in the 250

SX-F, its playful handling similar to a 250

machine resulting mainly from reducing the

moving masses to a minimum.

CYLINDER HEAD

The cylinder head features two overhead

camshafts with friction-optimized finger

followers boasting a DLC coating and high-flow

ports. Four lightweight titanium valves

maximize the flow rate for an optimal power

band and outstanding performance across the

seemingly endless rev range of 13,400rpm,

power peaking at 58hp. New lateral brackets

now made of aluminum instead of steel allow

an efficient fixation of the engine to the frame

and cut any excess weight.

CRANKSHAFT

The 350 SX-F’s crankshaft utilizes a short

connecting rod, which makes for an overall

compact and lightweight engine with a snappy

power delivery. A plain big-end bearing with

two force-fitted bearing shells runs directly on

the crank pin. This design is a major

prerequisite for the extremely high engine

speeds and the unrivaled maximum power of

the 350cm3 engine. Not only that, it also

enhances the engine’s durability, allowing long

crankshaft service intervals – a customer

benefit in respect of time, effort and cost.

COUNTER BALANCER SHAFT

In order to balance the mass-forces, the 350 SX-F engine uses a

multifunctional counter balance shaft, which at the same time drives

the water pump and timing chain. Win, win, win!      

ELECTRIC STARTER

The 350 SX-F is fitted with a unique electric

starter as standard, which is a clear advantage

when it comes to crunch time in the heat of

battle. A strong starter motor made by Mitsuba

and the proven starter drive will fire up your

track star time and time again at the push of a button.

ENGINE MANAGEMENT SYSTEM

The state-of-the-art Keihin Engine

Management System with electronic fuel

injection features a 44mm throttle body. Thanks

to its unique injector position, the engine’s

response is instantaneous. And to make life

even easier, separate systems for cold starts

and idle adjustment await you. The lightweight

ECU features a unique traction and launch

control system for lightning-quick response

when the bar drops and maximized grip thanks

to different maps that sync with to the gear

you’re in. As an ultimate bonus, the rider can

unleash an even more powerful mapping via

the handlebar map switch.

CYLINDER AND PISTON

Inside the short cylinder, with a bore of 88mm,

thumps a box-type piston made by CP. Its

crown geometry is adapted perfectly to the

high-compression combustion chamber (14:1),

where its rigid structure and low weight shine.

Thanks to the low oscillating masses, the

engine is both snappy and strong.

CLUTH

The highly compact CSS clutch (coil spring

steel) features a wear-free steel basket fitted

with seven clutch plates, which are extremely

heat resistant due to their steel carrier discs.

The Brembo hydraulic system provides easy

and precise modulation.

ENGINE CASES AND COVERS

The design of the die-cast engine cases

minimizes weight and allows for a very

centralized shaft configuration. This makes the

engine short and compact, while contributing to

an efficient centralization of masses. The

engine covers also feature a solid surface

structure, which reduce the wear caused by the

rider’s boots. Brilliant.

TRANSMISSION

The reliable 5-speed gearbox features a special surface treatment on

the 2nd, 3rd and 4th gears for best reliability. The advanced ´No Dirt´

gear lever design prevents dirt from blocking the joint of the lever and

guarantees a safe activation of the transmission. All 4-stroke engines are

fitted with a gear sensor to give the option of different engine characteristics

for each gear.      

TECHNICAL DETAILS

ENGINE

Design 1-cylinder 4-stroke engine
Displacement 349.7 cm³
Bore 88 mm
Stroke 57.5 mm
Starting aid Electric
Transmission 5-speed
Primary ratio 24:73
Secondary ratio 14:50
Clutch Wet CSS multi-disc clutch, Brembo hydraulics
EMS Keihin EMS                                                                                         

CHASSIS

Frame 25CrMo4 steel central-tube frame
Forks WP-USD, AER Ø 48 mm
Shock absorber WP shock absorber wih linkage
Suspension travel Front 310 mm
Suspension travel Rear 300 mm
Brake system Disc brakes
Brake discs - diameter Front 260 mm
Brake discs - diameter Rear 220 mm
Chain 5/8 x 1/4"
Steering head angle 63.9°
Wheel base 1485±10 mm
Ground clearance (unloaded) 370 mm
Seat height (unloaded) 960 mm
Total fuel tank capacity approx. 7 l
Unleaded premium fuel (95 octane), mixed with 2-stroke engine oil (1:60)
Weight without fuel approx. 99.8 kg
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