Fork Oil Level Gauge
If your telescopic fork becomes sluggish, what you need is the fork oil level gauge. This useful tool enables you to quickly determine the exact oil level in the forks and the height of the air chambers.
First you should change your folk oil, following the vehicle manufacturer's user manual and service manual.
The dipstick and the adjuster ring are then used to achieve the optimal level, as specified by the manufacturer. Excess oil can be suctioned off with a syringe. Please dispose of the fluid in an environmentally sound manner.