01. Engine & Exhaust
The most notable upgrade over its predecessor is the engine. Pumping out an impressive power, the engine in the KTM 890 ADVENTURE range boasts a spate of upgrades - most notably, a significant jump in power and torque. Improvements to electronics and pre-muffler also ensure it meets the strictest emissions regulations. This, paired with a 15,000 km service interval and low fuel consumption, makes it ready to hit the long road.
The DOHC cylinder head contains twin chain-driven camshafts and two spark plugs (one per cylinder). The camshafts are assembled, making them lighter than forged camshafts, while the cam profile has been developed to create an especially torquey engine. 1 mm larger intake and exhaust valves as well as reworked ports which have been flow optimized to maximize airflow also aid in delivering peak performance. A new balancer shaft in the cylinder head located between the camshafts matches the increased RPM and increased rotating mass, while a knock sensor has also been fitted to detect knocking combustions and allow for lower octane fuels - perfect for round the world travel.
Lighter, forged box pistons with three piston rings connected by a plain conrod bearing, combine with a DLC coated piston pin for reduced piston weight and less reciprocating mass. Piston cooling is also taken care of by two jets per piston, instead of the previous one per piston. The rotating mass of the crankshaft has been increased by 20% for improved engine behavior at constant speed. In addition, it is beneficial for cornering stability without losing the agile riding feeling.
KTM's ride-by-wire system electronically translates the throttle commands of the rider into optimum throttle valve positions for the specific riding situation.
When punching out those long days in the saddle, linking up tough offroad stages with sections of tarmac, uncomfortable engine vibrations are kept to a minimum thanks to two new balancer shafts, one in front of the crankshaft and the other in the cylinder head between the two camshafts.
The nicasil-coated aluminum cylinders are an integral part of the sleeveless engine casing. The open deck cylinder construction allows for optimal cooling, improved production tolerances, and reduces the potential for cylinder warpage during production. The bore of the cylinders has increased from 88 mm to 90.7 mm for increased displacement together with a longer stroke.
All-new conrods feature a trapezoidal V-shape top-end which reduces oscillating masses and supports higher the revvy nature and higher power output of the motor. The top-end bearing is also fitted with a bronze conrod bearing instead of a DLC coated top-end for longevity.
A rotating mass increase of 20% means this forged, one-piece crankshaft improves engine behavior at a constant speed, reducing any interference from centrifugal forces. The 435-degree firing order also produces a sound similar to that of the larger LC8 engine, which makes the KTM 890 ADVENTURE feel like one of its V-twin ADVENTURE brothers when cracking the throttle open.
New horizontally split crankcases allow for the engine's increased bore but remain high-pressure cast from aluminum. This allows for reduced wall thickness, weight savings and optimized surfaces, offering the engine designers more freedom in their design. The open-deck cylinders are integrated into the crankcase.
Oil circulation is based on a compact semi-dry sump system to minimize friction losses. The oil is actively pumped out of the crankcase, clutch housing and gearbox, which ensures that oil does not unnecessarily flow through the engine. The oil sump is integrated into the oil pump housing, together with two pumps (one scavenge, one pressure) and a pressure regulation valve. To cool down the oil, the engine is equipped with a larger oil cooler.
Adapted with new friction plates and improved cooling, the Power Assist Clutch (PASC) on the KTM 890 ADVENTURE serves a dual role. Not only is it a slipper clutch, preventing rear wheel chatter under hard deceleration, but also reduces the hard force needed when changing gears, allowing the clutch lever to be actuated with only one finger - saving you energy while riding.
The 6-speed sequential gearbox gets faster shifting thanks to shorter shift lever travel, lighter spring action and quicker Quickshifter+ technology, while the teeth on 4th, 5th and 6th gear are glass bead blasted for improved reliability. Quickshifter+ - optional on the KTM 890 ADVENTURE - allows for clutchless up and downshifts throughout the rev range.
Stainless-steel and ready for adventure! The exhaust system on the KTM 890 ADVENTURE boasts a reworked pre-muffler with an efficient catalytic converter to meet the latest emission limits. The whole design is focused on centralizing masses, which also improves the exhaust system's ground clearance.
The KTM 890 ADVENTURE features easy air filter accessibility for cleaning and servicing, even if you're out in the most remote location while on a ride. The airbox is located under the seat with the intake at the rear of the bike. This means that in addition to easy air filter access, the seat and tank could be kept low and the bike could be made narrower where it counts: in the leg area. It has also allowed better positioning of the electronics to keep mass centralized.
During extreme offroad exploration, it's important the LC8c engine keeps its cool to ensure its advanced power and performance are maintained. Thanks to the KTM 890 ADVENTURE's design and advanced cooling technology, riding for hours in hot conditions is no problem.