Öhlins shock absorber TTX Road & Track KT 302 for KTM 1290 Super Duke R 2014-2019

Product details

Öhlins TTX Road & Track KT 302 shock absorber, monoshock rear, gas-pressure damper with fixed, externa reservoir (“Piggy Back”); adjustable rebound damping, adjustable compression damping damping; integrated hydraulic spring preload adjuster; piston diameter 39 mm; with component approval for KTM 1290 Super Duke, model year 2014-2019

General description

Cavitation is devastating for a shock absorber, as it means the loss of damping and is therefore something you absolutely do not want to experience in your shock absorber. The small bubbles that form in the oil during cavitation can never support the desired damping properties of your shock absorber.

Traditionally designed dampers can easily fall victim to cavitation under extreme conditions due to the low pressure behind the piston.

The TTX system was designed by Öhlins development engineers to prevent the risk of cavitation in the shock absorber. The plan succeeded. Thanks to a well-thought-out pressure balance of the TTX technology, the risk of cavitation could be banished from the shock absorber.

The “TT” stands for “Twin Tube”, i.e. the twin-tube design, while the “X” in the designation describes the flow direction or the arrangement of the valves in the cylinder head of the TTX shock absorber.
Thanks to TTX technology, the pressure that normally builds up directly above the piston is routed towards the cylinder head and to the adjusters for compression and rebound damping.

It then flows into the free space between the inner and outer tube to the opposite side of the piston. All of this happens so quickly, thanks to ingenious bores and well-designed ducting, that one can almost speak of a balanced pressure ratio on both sides of the piston.

The reservoir of the TTX damper is only used during the compression and rebound of the shock absorber to either accommodate the oil expanded by heating or the oil displaced by the piston shaft, or to return it to the circuit. In the reservoir, there is a separating piston between the damper oil and the nitrogen located on the other side of the separating piston. The gas generates an oil pressure of six to nine bar, which essentially corresponds to the static pressure on both sides of the main piston.

In addition to its use in shock absorbers, Öhlins also relies on TTX technology for the construction of front wheel forks and cartridge kits. As is well known from Öhlins, TTX technology was also first introduced in the racing sector after extensive testing, to win races and championships there under extreme conditions.
Just two years after its introduction in racing, TTX technology was available for purchase by everyone. After its great success in sport and with supersport and superbike motorcycles for the street, the development has now also found its way into the field of dual-sport motorcycles and adventure touring bikes. TTX technology is also equipped for use in mechatronic segment.