2pcs GUB Aluminum CNC Bicycle Tire Valve Cap MTB Road Bike Tube Tyre Gas Nozzle Cover for AV FV Schrader Presta Valve Dustproof

Key Features

• Dust and Water Seal — It keeps dirt, water and debris out of the valve core.
• Aluminum Alloy Build — The aluminum alloy is lightweight, tough and rust-resistant, and suits all weather conditions.
• Air Pressure Support — It helps maintain air pressure and extend valve lifespan.
• Color Options — It comes in black, red, blue and gold to match the look of your bike.
• Lightweight Caps — Each cap weighs 0.67g for Presta and 1.6g for Schrader.

Product Specifications

• Piece Count: 2 pcs
• Compatible valve types: Presta or Schrader; AV FV Schrader Presta
• Presta cap size: 16 × 7 mm (0.63 × 0.28 in)
• Schrader cap size: 16 × 10 mm (0.63 × 0.39 in)
• Material: Aluminum alloy
• Weight per cap: Presta 0.67g, Schrader 1.6g

What It Is / How It Works

These are GUB aluminum alloy valve caps for bicycle tires, fitting Presta or Schrader valves. Valve caps are small covers that screw onto the end of a tire valve stem to keep the valve core clean.

Who It's For / Use Cases

Valve caps suit riders who want a simple cover for the valves on their wheels. Mountain bike and road bike riders who want both protection and a finished look for their wheels will find them a practical addition.

How to Use / Care

1. Screw each cap onto the valve stem by hand. No tools are needed.
2. Keep the cap on when the valve is not in use to help keep dirt, water and debris out of the valve core.

How to Choose

Start with the valve type on your wheel. Presta valves have a narrow stem, while Schrader valves are the wider type found on car-style valves. The Presta cap measures 16 × 7 mm and the Schrader cap measures 16 × 10 mm, so choose the size that matches your valve. Pick a color that suits your bike, since the caps come in black, red, blue and gold.

Frequently Asked Questions

Which valve types do these caps fit?
They fit Presta or Schrader valves. The Presta cap is 16 × 7 mm (0.63 × 0.28 in) and the Schrader cap is 16 × 10 mm (0.63 × 0.39 in).

How many caps are in a pack?
The pack has 2 pcs, and both caps in a pack are the same type.

What are the caps made of?
The caps are made of aluminum alloy. The alloy is lightweight and rust-resistant.

Do the caps keep dirt and water out?
The caps keep dirt, water and debris out of the valve core.

Do the caps help with tire pressure?
The caps help maintain air pressure and extend valve lifespan.