Graves Pneumatic Preload Adjuster for Ohlins TTX shocks: ZX-10R, ZX-6R, Ninja 400, R6, R1 and others (some models could require an adapter).
These type of adjusters can be found on higher level race bikes. Advantages are size, weight and reliability. With a positive adjustment position there is no chance of failure or preload loss during a race. Benefits are also no oil leakage!
Note: For adjustment a filling tool is necessary this must be ordered separately.