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150 SX - 2018


150 SX - 2018

Model Description

£6249.00

With the agility of a 125 and enough muscle to take the fight to the 250cc 4-strokes, this bike punches well above its weight. Its snarling engine sets benchmarks in terms of power and torque, rocketing its state-of-the-art chassis miles ahead of the competition. The top step of the podium does have the unmistakable scent of 2-stroke premix exhaust.



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Below you can view the full technical specification for the machine

Engine Type: Single cylinder, 2-stroke
Displacement: 143.6 cc
Bore x Stroke: 58/54.5 mm
Compression Ratio: -
Starter: Kickstarter
Transmission: Claw shift
Engine Lubrication: Mixture oil lubrication
Gear Ratios: -
Primary Drive: 23:73
Final Drive: 13:48
Cooling: Liquid cooled
Clutch: Wet multi-disc clutch, Brembo hydraulics
Ignition: Kokusan
Frame: Central tube frame made of chrome molybdenum steel tubing
Subframe: Aluminium
Handlebar: Neken, Aluminium 28/22 mm
Front Suspension: WP USD, AER airfork 48 mm
Rear Suspension: WP Monoshock with linkage
Suspension Travel Front/Rear: 310/300 mm
Brakes: Front/Rear: Disc brake 260/220 mm
Rims: Front/Rear: 1.60 x 21; 2.15 x 19 Excel
Tyres: Front/ Rear: 80/100-21; 100/90-19
Chain: 5/8 x 1/4
Silencer: Aluminium
Steering Head Angle: 63.9 degrees
Wheelbase: 1,485 mm
Ground Clearance (unloaded): 375 mm
Seat Height: 960 mm
Tank Capactiy: 7 l
Weight (No Fuel): 87.2 kg
Range: Motocross


With the agility of a 125 and enough muscle to take the fight to the 250cc 4-strokes, this bike punches well above its weight. Its snarling engine sets benchmarks in terms of power and torque, rocketing its state-of-the-art chassis miles ahead of the competition. The top step of the podium does have the unmistakable scent of 2-stroke premix exhaust.

ENGINE
The engine of the KTM 150 SX was developed with the latest know-how and state-of-the-art technology. That's the only way to craft class-leading power all across the rev range.  This is the lightest and most compact 150cc firecracker you'll find. So prepare for surprisingly fast lap times and baffling rideability. As this motorcycle shares many of its key components with the class-leading KTM 125 SX, the cylinder, head and piston unit can now also be fitted on a 125cc engine base converting it to a KTM 150 SX without replacing the crankshaft. Buy one, get one free. Nearly.

CYLINDER
This compact cylinder with a 58mm bore features a cutting-edge power valve unit with a sophisticated mechanism for the lateral support exhaust ports. Matched to a twin-component cylinder head, it is KTM's secret to all-round grunt. The layout of the water jackets in the cylinder and head guarantees efficient heat dissipation when the going gets tough.

CRANKCASES
For the latest engine generation the KTM engineers designed lightweight die-cast engine cases featuring a high crankshaft position located close to the center of gravity, which results in optimal mass centralization and outstanding rideability.

CRANKSHAFT
This reliable piece of engineering has been skillfully balanced to guarantee minimal vibrations. In its latest form, it allows a decrease of the displacement to 125cc just by replacing cylinder, piston and head. There's no more need to change the crankshaft. Two-in-one in no time.

TRANSMISSION
A robust 6-speed transmission was designed specifically for the small 2-stroke engine, its gear ratios perfectly in sync with the 150's power band. The latest production technologies allowed for compact dimensions and minimal weight. Keeping safety in mind, an advanced ´No Dirt´ gear shift lever design prevents dirt from blocking the joint.

CARBURETOR
The KTM 150 SX is fitted with a MIKUNI TMX carburetor. This 38mm flat slide carb lives to provide smooth and controllable power all the way up to the rev limitation. With a new intake manifold the carburetor is turned 7° in order to reduce the overflow of fuel.  And it's less sensitive to different altitudes and temperatures, so you can pin it wherever, whenever.

EXHAUST SYSTEM
The engineers meticulously tuned the resonator chamber for maximum torque and power, so this little screamer is as tough as it is strong.

IGNITION
All 2-stroke models feature a new CDI control unit with an advanced hardware which improves the starting behavior of the engine. The ignition curves remain unchanged.

FEATHERWEIGHT
KTM engineers just love dropping weight year after year. The result: the 2018 KTM SX models are the slimmest, lightest dirt bikes out there.

FRAME
The high-tech, lightweight chrome-moly steel frame has a knack for easy handling, outlandish rideability, precise cornering and excellent stability. You can also count on high torsional rigidity and low longitudinal stiffness. This results in better absorption of the energy created from the front and rear suspension, sucking up jumps and bumps. In short: more comfort and less rider fatigue. Laterally attached, engine head stays (the connection between cylinder head and frame) are now made of lightweight aluminum. They contribute to more precise cornering and a reduced vibration level. The engineers were able to pull off all that, while making their frame a big fat kilogram lighter than that of the lightest competitor on the market. In addition, it is easier to maintain, easier to work on and supplies more space for the tank and other components. The bike also features an extra-light subframe made of stable aluminum profiles, which tiptoes the scales at less than 900g.

FOOTPEGS
Sophisticated ´No Dirt´ footpegs prevent clogging of the footpeg pivot, even when digging in deep ruts. Looking for a higher riding position? Then just mount the footpegs of the MY2018 EXC models, which are 6mm higher than the SX versions.

AIR FILTER BOX
The air filter box design offers maximum protection of the air filter against soiling, while ensuring maximum airflow. The large Twin Air filter is mounted in a stiff cage, which at the same time holds the system in place. This design is so simple, you could still pop a fresh one in with a face full of mud. Without tools. In seconds.

HANDLEBAR
KTM engineers sure know how to handle handlebars. This tapered one, made of high-strength aluminum, is fixed in damped rubber mounts and has two different positions. ODI lock-on grips make grip changes easy and do not require any wire or glue to be secured.

SWINGARM
The cast aluminum design offers low weight and a perfect flex behavior. The single-component casting process eliminates any inconsistencies and inherent weak points created by welding. It's better looking too.

FUEL TANK
A lightweight polyethylene tank with a capacity of 7.0 liters of juice. The filler cap has an inside thread, which makes for easy and reliable closure.  

WHEELS
Featuring lightweight, CNC machined hubs and high-end Excel rims, they guarantee maximum stability and minimal unsprung weight. The wheels are shod with the latest Dunlop Geomax MX 3S tires.

COOLING SYSTEM
KTM's proven cooling system routes the coolant from the cylinder head through the frame triangle, directly to aluminum radiators made by WP. Thanks to flow optimized internal circulation and CFD-calculated ventilation, the system is superbly efficient. In addition, new radiator protections improve heat dissipation. Especially in the mud. They are also integrated into the front part of the shrouds to protect the radiators in a crash.

BODYWORK
KTM R&D, KISKA Design and all our factory riders had their say in shaping the plastics with one goal: complete harmony between rider and bike. Perfect ergonomics and contact points provide maximum comfort in movement on the SX. The I-beam structures of the front and rear fenders guarantee maximum stability and a low weight thanks to well thought-out construction and mounting. They also stay cleaner for longer.

GRAPHICS
A new, tailor-made kit and a Factory orange frame. Because in this sport, champs deserve to look the part regardless of the dirt.

SHOCK ABSORBER
The WP shock absorber has been developed with the entire frame and swingarm architecture in mind, including the linkage and the WP AER 48 front fork. It features machined and black anodized components and is a valuable, high-end product compared to roughcast reservoirs. A new, confidence inspiring setting with improved damping characteristics perfectly matches the front-end setup and its sparkling WP color scheme lets everyone know you have excellent taste in suspension.

FORK
The lightweight WP AER 48 front fork, a 48mm USD air-sprung fork developed by WP in close collaboration with KTM, is a split fork with separate functions for each leg. That means damping functions are on the right side, whereas the air spring is in the left. This left leg features a 2-chamber system with a capsuled air cartridge to prevent loss of air pressure. Should the outer seal start to leak, the internal cartridge pressure will keep the bike in position. The air spring is easy to adjust to any rider weight via a single air valve. No special tools are required; the fork air pump supplied with the bike will do just fine. The right fork leg integrates a damping cartridge that tailors to all your damping needs. It can be adjusted to the track conditions and the rider's preferences with a twist of a dial (compression from the top, rebound from the bottom, 30 clicks each). Right off the dealer floor, this fork (with reworked damping characteristics) is more comfortable and more sensitive than ever. But you can still hammer the hell out of it.

TRIPLE CLAMP
Top quality, CNC machined triple clamps have been a KTM trademark for years to ensure precise handling. The rubber damped handlebar fixation allows for two positions and an hourmeter is fitted in order to let the rider know it's time for a service.

BRAKES
These high-tech Brembo babies are combined with lightweight Wave brake discs. You couldn't brake any harder, better, faster or stronger.
150 SX - 2018

Price: £6249.00

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