Pro-Tek RC-550B - Kawasaki Blue Front Brake or Clutch Fluid Reservoir Cap Front Brake or Clutch Fluid Master Cylinder Reservoir Cap in blue anodized finish This rectangular bolt-on cap (Pro-tek Part No. RC-550) is 2.60" x 1.75" and has the words Pro-tek Racing USA engraved on it. It does not come with the two bolts. 100% CNC made from 6061 T6 billet aluminum Replaces only the stock plastic caps