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2019 KTM 250 XC-W TPI
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2019 KTM 250 XC-W TPI
Speed Injected: When the smoke clears, you'll be the last rider standing. The KTM 250 XC-W TPI is one of the best pound-for-pound fighters in the world of Enduro, pummeling its more complex 4-stroke rivals. All muscle, no fat: this groundbreaking, fuel-injected 2-stroke machine is as lean as it is powerful.
- The KTM 250cc engine is known to be the most powerful and most competitive 2-stroke engine of the class. And things get even better. The KTM 250 XC-W TPI is fitted with a transfer port injection fuel injection system, a unique feature when it comes to sporty 2-stroke race bikes. The patented EFI system with two injectors mounted on the transfer ports of the cylinder makes the engine much smoother to ride and reduces the fuel consumption drastically, a global game changer in terms of technology. On top of that, the KTM 250cc powerhouse features a modern shaft arrangement that's beneficial in terms of mass centralization, a well-protected E-starter, a balancer shaft for low engine vibrations, a 6-speed Enduro transmission and a hydraulically operated DDS clutch. This is a song of belly tingling 2-stroke symphony when keeping it pinned on the pipe, while still being able to deliver ultra-smooth and reliable drive when you need it.
- Cylinder: The KTM 250 XC-W TPI cylinder has a bore of 66.4mm and is fitted with the sophisticated power valve providing smooth and controllable power characteristics. For the EFI application the cylinder features two lateral domes, which hold the fuel injectors supplying fuel into the rear transfer ports. Thus the loss of unburnt fuel is reduced for fewer emissions, a more efficient combustion and low fuel consumption. A tube in the back of the cylinder is connected with an intake pressure sensor, which supplies pressure data to the control unit.
- Crankcases and engine covers: For optimal mass centralization the lightweight die-cast crankcases hold the clutch shaft and the crankshaft in a high position close to the center of gravity for quick handling and a light feel. In addition, it allows the implementation of a balancer shaft. So your ride will be as relaxed as it is rapid. Plus, your new favorite engine will keep looking as fresh as the day you bought it: the engine covers feature a surface structure that reduces the wear caused by the rider's boots.
- Transmission: This 6-speed Enduro transmission features an Enduro-specific wide-ratio specification and provides precise and easy shifting. An advanced ´No Dirt´ gear shift lever design prevents mud and dirt from blocking the joint. Because even dirt lovers hate mud when it's in the wrong places.
- Balancer shaft: Say goodbye to numb feet and hands. This engine design allows the implementation of a lateral balancer shaft in order to keep the vibrations to a minimum. You know what that means: more comfort, less fatigue, more racing.
- Engine management system: The engine management system (EMS) of the TPI models features a control unit located below the seat. The control unit determines the ignition timing and the amount of fuel to inject is based on several sensor readings such as intake and ambient air pressure, throttle position, oil and water temperature. Thanks to altitude and temperature compensation the hassle and time of jetting a 2-stroke is no more.
- Clutch: The KTM 250 XC-W TPI employs the KTM-developed DDS clutch (damped diaphragm steel) with a wear-free steel basket, extremely heat resistant clutch plates and nitrated steel liners. This clever design employs a diaphragm spring instead of the usual coil springs, making for considerably easier clutch action. A diaphragm spring also leaves sufficient space for a damping system to be integrated into the clutch hub. The goal is traction, but durability is as well. Light operation and telepathic amounts of control are standard with this hydraulic Brembo actuated clutch.
- Oil pump: Pre-mixing 2-stroke fuel is a thing of the past for KTM XC-W TPI owners. An electronic oil pump feeds oil from the oil tank via the throttle body into the engine intake, and ensures a perfect fuel-oil mix in all conditions and engine speeds. The system, which reduces up to 50% of the smoke from the exhaust system over carburettor models, is managed by the control unit based on the engine's revs and load measured by the TPS (throttle position sensor). The oil capacity of approximately 0.7 liters is enough for 5-6 refills of fuel, giving you more time to ride, less time measuring things out.
- Throttle body: The TPI engine is fitted with a 39mm throttle body made by Dell`Orto. The airflow is regulated by a butterfly connected with a twin-cable throttle cam, which is operated by the handlebar throttle assembly. A throttle position sensor provides airflow data to the control unit, while a bypass screw allows the regulation of the idle speed. The cold start device also opens a bypass supplying more air. Via an oil intake tube oil supplied from the oil pump is mixed with the incoming air to lubricate crankshaft bearings and cylinder/piston etc.
- Cooling: KTM's proven cooling system routes the coolant from the cylinder head through the frame triangle, directly to aluminum radiators made by WP. The additional KTM PowerParts radiator fan is regulated by the EMS control unit for easy installation. Thanks to flow optimized internal circulation and CFD-calculated ventilation, the system is superbly efficient. In addition the radiator protectors 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.
- Exhaust: This nickel-plated pipe is produced by WP Performance Systems. It is designed for an optimal power band and maximal performance of the engine. A modern 3D production process guarantees top precision and reliability of the pipe, so this screamer is as tough as it is strong.
- KTM engineers just love dropping weight year after year. The result: the 2019 KTM XC-W 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, lightweight engine head stays (the connection between cylinder head and frame) contribute to a reduced vibration level. Two threaded inserts in the lower cradle tubes allow for safe fixation of an optional skid plate. The engineers could pull off all of this while making the frame 2.2 pounds 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. On the XC-W TPI models the upper frame tube features a slot where the oil filler cap is mounted, which feeds the oil tank via a hose inside the frame tube. The bike also features an extra-light subframe made of high quality aluminum, which tip the scales at less than 2 pounds.
- 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 good looking as well.
- Wheels: The XC-W wheels feature lightweight, CNC machined hubs and high-end Giant rims guaranteeing maximum stability at minimum weight. The wheels are fitted with Dunlop AT 81 tires - perfect for surefooted performance offroad.
- Front suspension: The WP XPlor 48 upside-down fork is a split fork developed by WP in close collaboration with KTM. It is fitted with a spring on both sides, but features separated functions for each fork leg: compression damping is fitted on the left side, while rebound is on the right. So the fork can easily be adjusted for compression and rebound with the twist of a dial on top of the fork tubes (30 clicks each). In addition, a sealed hydro-stop guarantees better resistance to bottoming-out. Due to high-quality materials and a state-of-the-art production process, the WP XPlor 48 fork - with approx. 300mm of travel - has outstanding response and damping characteristics. An optional preload adjuster allows for a threefold spring preload setting without any tools. Easy as one, two, three.
- Rear suspension: The WP XPlor PDS system is a KTM trademark where the shock absorber is directly connected to the upper side of the swingarm. We don't use any linkage.The progressive damping is achieved by a second piston, which works together with a closed cup towards the end of the stroke. This design contributes to an optimal progression behavior of the damping supported by a progressive shock spring.Various machined and anodized components and a distinctive WP color trim (black reservoir, white spring, silver body) make this a valuable, high-end product compared to the roughcast bodies of many competitors. You'd hate to see it get dirty. Almost.
- Triple clamp: The 250 XC-W TPI is fitted with forged triple clamps with an offset of 22mm, ensuring a solid grip of the fork and precise handling. The handlebar is adjustable forwards and backwards over 4 positions; this XC-W will fit you like your favorite gloves.
- Brakes: You couldn't brake any harder, better, faster or stronger. These high-tech Brembo brakes are combined with lightweight Wave brake discs and are the ultimate solution in braking technology. First you outrun them, then you outbrake them.
- Fuel tank: This is a lightweight polyethylene tank with a capacity of 2.4 gallons. The XC-W TPI models incorporate an integrated fuel pump system and an additional fuel level sensor so you'll always know when you're running low on gas.
- Airbox: The air filter box design offers maximum protection of the air filter against soiling, while ensuring maximum airflow. The large Twin Air air filter is mounted on 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.
- READY TO RACE ergonomics give you the edge on all terrain, ride harder for longer.
- Handlebar: KTM engineers sure know how to handle handlebars. This tapered unit, made of high-strength aluminum by NEKEN, features a throttle assembly with a twin-cable for TPI models just like their 4-stroke brothers with a double-cable aluminum body and straightforward free-play adjustment. A volcanized grip sits on the right, while on the left side of the bar a comfortable ODI lock-on grip is mounted, which does not require any wire or glue to be fixed.
- Footpegs: Sophisticated ´No Dirt´ footpegs prevent jamming up the pegs, even when digging in deep ruts. The pegs on the Enduro models are 6mm higher than the ones used on SX models, which benefits ground clearance. But you can swap them at will.
- KTM R&D, KISKA Design and the factory racers all 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 XC-W TPI. 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. Clever brake hose routing on the front number plate prevents wear and tear.
- Decals: New graphics convey the READY TO RACE character of the 2019 KTM XC-W model line.
- The latest technology, reduced to the minimum: READY TO RACE
- Battery & wiring harness: A strong lithium ion battery breathes life into the engine and contributes to low vehicle weight. The lightweight battery and wiring harness are centralized in a compartment above the air filter box, allowing the mechanic to remove the subframe without removing the electronics. A happy mechanic is a good mechanic.
- Design: 1-cylinder, 2-stroke engine
- Displacement: 249 cm³
- Bore: 66.4 mm
- Stroke: 72 mm
- Starter: Kick and electric starter
- Transmission: 6-speed
- Clutch: Wet, DDS multi-disc clutch, Brembo hydraulics
- Frame design: 25CrMo4 steel central-tube frame
- Rear suspension: WP Xplor PDS shock absorber
- Front brake: Disc brake
- Rear brake: Disc brake
- Front brake disc diameter: 260 mm
- Rear brake disc diameter: 220 mm
- Chain: X-Ring 5/8 x 1/4"
- Steering head angle: 63.5 °
- Engine Type
- 1-cylinder, 2-stroke
- 249 cm³
- Bore and Stroke
- 66.4 mm x 72 mm
- Front Brakes
- Disc brake
- Rear Suspension
- WP Xplor PDS shock absorber
- Rear Brakes
- Disc brake
- Final Drive
- Chain: X-Ring 5/8 x 1/4 in.