KTM 690 DUKE 2018

Engine & Exhaust

The brilliant LC4 showcases twenty-four carats of fun. With its powerful, lightweight single combined with a sophisticated electronic engine management , dual-spark ignition with plug-selective mappings and a second balancer shaft, the results are top refinement, a wide powerband and a full 54 kW (73 hp) of peak power.

Engine & Exhaust
Engine

From the trademark 690 cm³ thumper, the engineers have extracted a whopping 73 hp (54 kW) and 74 Nm of torque, making light work of the equally lightweight 690 DUKE. How it happened? They completely reworked the cylinder head, inserted an ultra light and extremely strong piston and connection rod, rerouted the air intake through a resonator chamber and provided the crankshaft with sleeve bearings. As a result, the powerband is a thousand rpm wider, which means an even more uniform power delivery, especially in the mid to high rev range. Twin ignition featuring plug-selective mapping, rock solid but featherweight internals and optimized intake and exhaust systems cultivate this massive mono to be as strong as it is smooth, assisted by an advanced ride-by-wire system, which guarantees great refinement as well as low fuel consumption and emission figures. You’re green, while they’re green with envy. And you haven’t even begun mentioning upmarket goodies like a standard slipper clutch.

Cylinder head

Inside the cylinder head, the exhaust valves are actuated by roller rockers while the camshaft powers the intake valves. Therefore, the valve timings can be controlled with far greater accuracy. The result is more peak power over a broader rev range. Win-win!

Second balancer shaft

Second balancer shaft

In a free-revving firecracker like this, you want to smooth things out a bit. That’s why the LC4 serves a bonus balancer shaft, nipping annoying vibrations in the bud.

Engine management

The electronic engine management system lives to make the LC4 shine. Twin ignition with individual mappings for each spark plug ensures that your precious fuel is always burned to perfection, irrespective of load and engine speed. And then there is genuine ride-by-wire, in other words: Electronically controlled throttle valve actuation without any mechanical linkage. You’d be forgiven for thinking it runs on cream. Whipped cream, that is.

A2 allowed

A2 allowed

A restricted power version is available for those riders who have just started their two-wheeled career. But restricted power doesn´t necessary mean restricted fun: thanks to its lightweight and dynamic chassis, the KTM 690 Duke is the perfect playmate for all ages. Regardless of your experience level, the 690 Duke is your license to thrill.

Exhaust

Exhaust

Thanks to its optimized intake and exhaust system, the LC4 engine even complies with the Euro IV emission control standards. A first in KTM’s history.

Mass centralization

Mass centralization

The Duke does not only impress with its low weight and perfect chassis geometry; the centralization of weight - for example, by positioning the brushed stainless steel pre-silencer under the engine - also contributes to its playful handling and razor-sharp precision.

Silencer bracket

Akrapovič "Slip-on Line"

Akrapovič kit "Racing Line"

Heat protection

Airfilter

K&N air filter

CNC-parts

Oil filter cover

Factory ignition cover plug

Oil plug