Front: TTX46
through rod
solid piston
twin tube
compression/rebound independent adjustment
Rear: TTX36 Inline
twin tube
solid piston
compression/rebound independent adjustment
Honestly one of the most advanced dampers on the market. Because the piston is solid, damping is achieved by moving fluid through the external valves (where the knobs are). Öhlins even offers a Matlab-based program which can generate theoretical damping curves right on your screen.
Here's a manual for those who have a curious mind.
http://performanceshock.com/TTX40_TT...ner_Manual.pdf