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2017 KTM 450 SX-F Review and Specification

If the rider wants speed, durable chassis which holds a compact and powerful engine which delivers the explosive but controllable power than the all-new 2017 KTM 450 SX-F is the best choice for him. The new 2017 KTM 450 SX-F is the most powerful bike KTM Company has ever launched. This dirt bike is the weapon of choice for the Red Bull KTM Factory Team and their champs. This bike is extremely responsive and is quickly gaining its reputation among the KTM’s dirt bike lovers. This bike has active suspension system with quite an amazing braking system. The new 2017 KTM 450 SX-F has a sweet handling and has the gut-wrenching grunt. In short, the all-new 2017 KTM 450 SX-F is the dirt bike which is only for champs. The review of new 2017 KTM 450 SX-F with the specification is writing below.

2017 KTM 450 SX-F

2017 KTM 450 SX-F – Specs

Engine

The new 2017 KTM 450 SX-F comes with an extremely compact and powerful engine of 450 ccs. The engine has a high performance throughout the rev range and little weight, this is the lightest 450 engine present in the MX market. The dirt bike comes with a single overhead camshaft cylinder head and the advanced electronic fuel injection, which pumps out an unrivaled 62hp. The KTM’s were working to increase the service intervals and has the latest engine management technology on board and confidently shoots both pros and amateurs to the top of their time sheets. The new 2017 KTM 450 SX-F bike has a SOHC cylinder head which has an overhead camshaft that controls the gas flow through the ports. It will then activates the four ultra-lightweight titanium valves via extremely rigid rocker arms, which has a DLC-coated on the intake side. This configuration will allow the engine to speed up to 11,500 rpm. The engine of the new 2017 KTM 450 SX-F has lateral brackets which are made up of aluminum instead of steel, which will allow an efficient fixation of the bike to the chassis. The crankshaft of the new 2017 KTM 450 SX-F utilizes a short connecting rod, which makes the engine more compact and lightweight with a snappy power delivery. The bike has an everyday big-end bearing with two force-fitted bearing shells which run directly on the crank pin. The oil feed for the bearing is ensured by the engine’s pressurized lubrication. This design benefits the crankshaft in term of the service interval of a crankshaft, which can be increased due to plain bearing. The new 2017 KTM 450 SX-F has a state of the art Keihin Engine Management System with electronic fuel injection which contains a 44 mm throttle body. The engine is extremely responsive, making ride full of fun, this is only possible due to the unique position of the injector position.

2017 KTM 450 SX-F engine

The new 2017 KTM 450 SX-F has a lightweight ECU which contains an exceptional traction, and it launches control system for lightning quick response. The rider has the option of unleashing for more powerful mapping via the handlebar map switch. The design of the die-cast engine cases of the bike allows for the minimal weight, and it has a centralized shaft configuration. It makes with engine short and compact with the contribution to an efficient centralization of masses. The cover of an engine has a stable surface structure which not only reduces the wear caused by the rider’s boots. The new 2017 KTM 450 SX-F has a lightweight 4-speed gearbox with such gear ratios that are perfectly matched to the power delivery of its large displacement engine. The 1st and the 3rd gears are treated with the special surface coating for better reliability. The bike has advanced ‘No Dirt’ gear lever design that prevents mud and sand from blocking the joint of the lever and it ensure safe shifting. The bike has four stroke engines which are fitted with a gear sensor that gives the option of different engine characteristics for each gear. For the US market, the new 2017 KTM 450 SX-F is delivered with a 5-speed gearbox for best performance in the desert. The new 2017 KTM 450 SX-F comes with the KTM developed DDS clutch with a wear-free steel basket and extremely heat resistance clutch plates. The design of a diaphragm spring instead of the usual coil springs makes the clutch action much easier. The diaphragm spring also has sufficient space for a damping system to be integrated into the clutch hub. The primary objective was traction with durability as well. Moreover, it has a lighter basket, a reworked inner hub and the pressure plate that provides better oil supply and unsurpassed cooling. The light operation and telepathic amounts of control make this clutch, a hydraulic clutch. The bike has a new 2017 KTM 450 SX-F side mounted counterbalance shaft also drives the water pump. The dirt bike has a perfect balance and low oscillating masses, which reduces the engine vibrations to it minimum level. The engine has a bore of 95 mm with an incredible box in a box-type piston that delivers a significant contribution to the engine’s low vibration while it handles the high engine speed with ease.

Chassis

The all-new 2017 KTM 450 SX-F has a high-tech lightweight chrome-moly steel for easy handling, excellent rideability, accurate cornering and outstanding stability. The rider can also count on high torsional rigidity and low longitudinal stiffness. It will results in better energy absorption created from the rear and front suspension, sucking up jumps and bumps. In other words, it will cause more comfort and less fatigue of rider. The new 2017 KTM 450 SX-F bike has a lightweight aluminum engine head which contributes to more precise cornering and in the reduction of vibration level. The engineers were able to reduce the weight of dirt bike and to make it a kilogram lighter than the lightest competitor on the market. The dirt bike is easy to maintain and is easier to work on and supplies more space for the tank and components. The dirt bike has an extra-light subframe which is made up of solid aluminum profiles. The all-new 2017 KTM 450 SX-F is the slimmest and lightest dirt bike of all time. Even though the 4-strokes are equipped with an electric starter as a standard feature while the competition needs to be kickstarted. The all-new 2017 KTM 450 SX-F dirt bike has a footpeg that prevents smudging up the pegs, even when a rider is digging in deep ruts. The new 2017 KTM 450 SX-F has footpegs 6 mm higher than the previous SX versions. The design of airbox offers maximum protection of the air filter against soiling, while it still ensures maximum airflow. The bike has a large twin-air filter which is installed in a wooden cage, which at the same time holds the system in place. The design of airbox is very simple, and anyone can pop a fresh one in with a face full of mud, within a few seconds without any tool. The new 2017 KTM 450 SX-F bike has incredible high-strength handlebars made up of aluminum by NEKEN, which is fixed in damped rubber mountings and has two different positions. For the new 2017 KTM 450 SX-F, the lower handlebar clamps are separated, whereas the upper side has a new bridge-type clamp which ensures more torsional stiffness. It is easy to replace the bar in case of any nasty accident or crash. The ODI vulcanized grip firmly sits on the right side, while on the left aspect of the handlebars, the comfortable ODI lock-on grip is mounted, which does not require any wire or glue to be fixed. The new 2017 KTM 450 SX-F has a cast aluminum design which offers a little weight and good flex behavior. The single-component casting process not only eliminates any inconsistencies but it also vanishes the inherent weak points which are created by welding. Since the FIM noise limits are the real challenge for every manufacturer, therefore KTM engineers managed to develop such exhaust system which meets all the requirement. All the four strokes are fitted with header pipes that have a unique standard feature i.e. an additional resonator system, with a small chamber connected to the pipe. The KTM engineers have developed the advanced version of FDH (Flow Design Header) which provides the better engine performance and reduces noise. The all-new 2017 KTM 450 SX-F comes with a short silencer installed close to the engine to reduce more weight. The reduction of the pressure causes extra mass centralization and better rideability. The advanced internal design will reduce the noise sufficiently to sit safely below the FIM noise limit. The new dirt bike comes with a durable seat that offers a great comfort and better grip. The all-new 2017 KTM 450 SX-F comes with a lightweight; CNC-machined hubs and high-end Excel rims which ensure the maximum stability and minimal unsprung weight. The wheels of this dirt bike are shod with the latest Dunlop Geomax MX 3S tires. The new 2017 KTM 450 SX-F has a lightweight polyethylene tank with the fuel capacity of 7 liters. The filler cap has an inside thread that makes a secure and reliable closure. The new 2017 KTM 450 SX-F has a cooling system which routes the coolant from the cylinder head through the frame triangle, directly to aluminum radiators made by WP. The bike has a flow optimized internal circulation and CFD-calculated air ventilation, this system is very efficient. Moreover, the radiator guards present in the front part of the spoiler provides the protection in case of crashes.

2017 KTM 450 SX-F

Design

The new 2017 KTM 450 SX-F comes with a Kiska Design and all the rider like it. The primary objective of the KTM engineers was to develop such machine which establishes the harmony between rider and bike. The new dirt bike has a perfect ergonomic design and contact points, which gives maximum freedom of movement. The new low seat height and sweet comfort, especially the rear part of the seat make the ride full of fun. The new I-beam structure of the rear and front fenders are the prime examples of such design; it will ensure the maximum stability and the little weight. The new bike has excellent graphics which provides a charming look.

Electrical features

The all-new 2017 KTM 450 SX-F dirt bike is equipped with a sophisticated with a new multi-functional handlebar map switch, which does three things.

  • Activation of the traction control
  • Activation of the launch control
  • Selection of an alternative power curve (Standard / Advanced)

Only the KTM Brand offers the traction control feature so far. It ensures the most efficient traction and better control of the bike when accelerating. On the rainy day rider has to push the button and reign supreme. With the help of map switch, the rider can quickly activate the launch control that provides more efficient starts out of the gate rider can go for holeshot easily. It just reduces the maximum engine speed for the very first moment of the outset to give the better control. Push both buttons when the engine idles and the EFI control lamp installed on the upper triple clamps will let the rider know about the bike. Moreover, the map switch will allow the rider to select an alternative, more robust route beside the standard configuration. The engine of the new 2017 KTM 450 SX-F are fitted with the electric starter, which is a unique feature of KTM, and it provides a significant benefit at all level of motocross racing. The new dirt bike has a compact and lightweight 495 grams Lithium Ion starter battery which breathes life into the engine, and it also contributes to low weight. The battery and wiring harness of the dirt bike are centralized into the compartment above the airbox that will allow the mechanic to remove the subframe without getting in conflict with the electrics. The all-new 2017 KTM 450 SX-F has a push started system; this bike is only started by pressing the button.

Suspension

The all-new 2017 KTM 450 SX-F comes with a WP moto shock which has been developed with the entire frame and swingarm design in mind, including the new linkage system and the WP AER 48 front forks. It contains machined and black anodized component and is a valuable, high-end product compared to the roughcast reservoirs. The new setting of the suspension and the softer spring perfectly match the reworked front end set up, and it is sparkling WP color scheme lets the other riders know that you have the excellent taste in suspension. The new 2017 KTM 450 SX-F has a lightweight WP AER 48 front fork with the 48 mm USD air sprung fork developed by WP in close collaboration with KTM, is the split fork with the entirely separate functions for each leg. It only means that damping functions are present on the right side, whereas the air spring is on the left side. The left leg contains the two chamber system with a capsule air cartridge to prevent any loss of atmospheric pressure. The rider needs not to worry about if the outer seal starts to leak, the internal cartridge pressure will keep the bike in position. The air spring of the bike is easy to adjust to any rider weight via a single air valve without any particular tool. The right fork leg integrates the damping cartridge, which tailors to all rider damping needs. It can easily be adjusted to any track condition, and the riders preference with a twist of a dial. The new 2017 KTM 450 SX-F has the AER 48 which contains a redesigned outer tubes with better bending characteristics, less friction, and smoother operation. These forks are both comfortable and sensitive. The all-new dirt bike has a top quality CNC machined triple clamps which are the trademark of the KTM Company. They guarantee an accurate handling and the support of flex characteristics, and the action of the forks. The new 2017 KTM 450 SX-F dirt bike has the upper triple clamp which features a redesign in conjunction with the new fork tubes. The rubber damped handlebar fixation is now reworked, and the lower handlebar clamps are now separated, while the upper side of the new bridge-type clamps ensures the maximum torsional stiffness and it can be easily replaced just in case of any crash. Also, the hour meter is fitted with the upper triple clamp to let the rider know at the time of service. The new 2017 KTM 450 SX-F has a high-tech Brembo brakes which are combined with the lightweight wave discs made by Galfer. Just for the new 2017 KTM 450 SX-F, the rear brakes have 10 mm longer brake pedal.

2017 KTM 450 SX-F

2017 KTM 450 SX-F – Specs

2017 KTM 450 SX-F Specs

Engine

Design 1-cylinder, 4-stroke engine
Displacement 449.9 cm³
Bore 95 mm
Stroke 63.4 mm
Starter Electric starter
Transmission 4-speed
Primary Drive 31:76
Secondary Gear Ratio 13:48
Clutch Wet, DDS multi-disc clutch, Brembo hydraulics
EMS Keihin EMS

2017 KTM 450 SX-F specs 1

Chassis

Frame Design 25CrMo4 steel central tube frame25CrMo4 steel central tube frame
Front Suspension WP-USD, AER 48, Ø 48 mm
Rear Suspension WP shock absorber with linkage
Suspension Travel (Front) 310 mm
Suspension Travel (Rear) 300 mm
Front Brake Disc brake
Rear Brake Disc brake
Front Brake Disc Diameter 260 mm
Rear Brake Disc Diameter 220 mm
Chain 5/8 x 1/4.”
Steering Head Angle 63.9 °
Wheelbase 1485 ± 10 mm
Ground Clearance 370 mm
Seat Height 960 mm
Tank Capacity 7 liters
Weight Ready to Race 100.2 kg

2017 KTM 450 SX-F

Conclusion

The new launched 2017 KTM 450 SX-F is an excellent dirt bike for those riders who want the bike with quite an impressive classical design, and robust 450 cc’s engine and is incredibly responsive bike. The review with the specification of 2017 KTM 450 SX-F is written under www.bikescatalog.com. This article provides the complete information about the newly launched 2017 KTM 450 SX-F dirt bike for champs by KTM Company. 2017 KTM 450 SX-F is the fantastic and classic bike which has outstanding features and has an excellent suspension, cooling, electrical and braking system. The design of the 2017 KTM 450 SX-F is unique, and this bike has a lightweight as compared to other competitors with some exceptional features as well, so purchase this new 2017 KTM 450 SX-F dirt bike. Enjoy the ride of this fantastic dirt bike in motocross races and some dirt tracks as well and come back later for some more about bikes in the shape of discussion and don’t forget to leave your comments here.

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