Öhlins shock absorber TTX Road & Track BM 570 for BMW S1000RR 2023-

Product details

Öhlins TTX GP Road & Track BM 570 shock absorber, mono shock absorber rear, gas-pressure twin-tube damper with externa fixed reservoir; adjustable rebound damping, adjustable compression damping damping; integrated hydraulicer spring spring preload adjuster; piston diameter 36 mm; with ABE according to the usage list for BMW S1000RR, type 2R99, 2R99r, from model year 2023-

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 constructed 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 worked. Thanks to a well-thought-out pressure balance of the TTX technology, the risk of cavitation in the shock absorber was eliminated.

The “TT” stands for “Twin Tube”, referring to 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 directed towards the cylinder head and to the adjusters for compression and rebound damping.

It then passes into the free space between the inner and outer tube on the opposite side of the piston. All of this happens so quickly, thanks to ingenious bores and well-designed channel routing, 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 compression and rebound of the shock absorber to either absorb the oil expanded by heating or displaced by the piston rod, or to return it to the circuit. In the reservoir, there is a separator piston between the damper oil and the nitrogen located on the other side of the separator 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 in the construction of front wheel forks and cartridge kits. As is known from Öhlins, the TTX technology was also first introduced in the racing sector after long test series to win races and championships 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 dual-sport motorcycles and touring enduros. TTX technology is also equipped for use in mechatronic segment systems.

Features:
- Twin-tube damper
- piston diameter: 36 mm
- Gas-pressure damper with fixed, externa reservoir (“Piggy Back”)
- Adjustable rebound damping. Black adjuster on TTX36 shock absorber / silver adjuster on TTX GP shock absorber
- Adjustable compression damping damping. Gold adjuster on TTX36 / TTX GP shock absorber
- Adjustable length
- Integrated hydraulicer spring preload adjuster
- Length: 369 +7/-5 mm
- Stroke: 80 mm
- Rate N/mm: 58 N/mm
- Position: Rear