You are looking at a Pro-tek CNC billet Front Brake Fluid Master Cylinder Reservoir Cap or a Clutch Fluid Reservoir Cap in brite-dipped anodized finish that replaces the stock plastic cap on a 2003-2018 Honda ST1300/A/PA models.

This one cap comes available in 4 colors -red, blue, gold and silver.

This reservoir cap is CNC made from 6061 T6 billet aluminum, is brand new still in original packaging, manufactured in the USA, and comes complete with manufacturer warranty.

This rectangular bolt-on front brake or clutch fluid reservoir cap (Pro-tek Part No. RC-700) is 3.31" (84.14mm) x 1.69" (42.86mm) with two bolt holes and breather vents etched into the underside to prevent gas vapor vacuum pressure buildup. This cap does not come with bolts. You must use your stock cap bolts. Replacement bolts are available in Flat Head Stainless Steel 316 (A-4) if you are tired of the stock bolts that rust and strip or break off. This cap is engraved with the words Pro-tek Racing.

The retail price for this cap is $25.

These are not "NO Named Brand" cast aluminum caps machined later to look like billet (made in China) that are all over the Internet. These are American made from solid billet aluminum, 100% CNC machined from a name you can trust - Pro-tek - a leader in the motorcycle industry for over 25 years.

Applications:
2003-2018 Honda ST1300/A/PA

-Condition: 100% Brand New
-Material: 6061T6 Aluminum
-Available Colors: Red, Blue, Silver, Gold
-Surface finish: Brite-Dipped Anodized
-Feature: 100% CNC manufactured with Pro-tek Racing engraved
-Size: 3.25" (82.55mm) x 1.25" (31.75mm) with Height .25" (6.35mm) (1)
-Placement on vehicle: Front
-Contents of package: One Front Brake Fluid or Clutch Fluid Reservoir Cap
-Item is easy to install without any instruction.