Urban Proof BNB 20 x 4.00 AV 45GR

Curved 45° AV valve boosts inflation speed and fit for 20×4.00 fatbike tires, giving you flawless urban rides every time

€15

Price for FATclub members: €14

Out of stock

Free delivery on orders over €50
After delivery or monthly payments with Klarna & ALMA
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Unmatched Durability and Performance for Your Fatbike Adventures.

Conquer urban terrains and rugged trails with ultimate reliability and superior tire support. The Urban Proof bnb 20 x 4.00 inner tube eliminates common puncture frustrations by delivering a perfect fit and enhanced air retention for fatbikes. Its innovative 45-degree bent AV Auto/Schrader valve ensures easy inflation even in tight spaces, making maintenance effortless and fast.

Key Features

  • Precision fit for 20 x 4.00 fatbike tires.
  • Durable construction designed to withstand urban and off-road challenges.
  • 45-degree bent AV Auto/Schrader valve for convenient access and inflation.
  • Optimized air retention to keep your ride smooth and consistent.
  • Compatible with all fatbike models requiring ETRTO 100-406 inner tubes.

Technical Specifications

  • Size: 20 x 4.00 inches.
  • ETRTO: 100-406.
  • Valve Type: AV Auto/Schrader valve.
  • Valve Angle: 45 degrees bent.
  • Application: Designed specifically for fatbikes.

Frequently Asked Questions

Yes, it is designed to fit fatbike tires with a 20 x 4.00 size and ETRTO 100-406 standard.
The bent valve allows easier access for inflation in tight or awkward spaces, improving convenience during maintenance.

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