Master Cylinder Reservoir Cap Plastic O-Ring, This master cylinder reservoir cap plastic o-ring is a quality replacement component for repair, restoration, and regular maintenance. As the internal seals age and swell, the lever goes spongy or slowly sinks to the bar and braking fades.

• Restores firm lever feel and hydraulic pressure
• Cures a spongy or sinking lever
• Confirm bore size against your original

Fits

• 1984 Honda VF1000F
• 1985-1986 Honda VF1000R
• 2000-2006 Honda RVT1000R