Flat Tire Defender - FTD II 700C Gravel & Cyclo Cross Series 2pc Kit

Introducing the Flat Tire Defender II 700C Gravel & Cyclo Cross Series — the lightweight foam insert engineered specifically for the demands of modern gravel riding and cyclo cross racing.

Designed, developed, and field-tested by Flat Tire Defender®, this true foam rubber insert delivers the perfect balance of rim protection, traction, and low rolling resistance while keeping rotating weight to a minimum.

Whether you're racing cyclo cross, tackling rough gravel roads, or pushing hard through technical terrain, the FTD II Gravel Series helps you ride smoother, corner harder, and maintain better control on every ride.

TECH SPECS

• Wheel Size: 700C
• Compatible Tire Width: 30mm to 45mm
• Recommended Pressure Range: 25 PSI to 30 PSI
• Weight: 120–140g each
• Compatibility: Tubeless setup only
• Kit Includes: 2 foam inserts & 2 tubeless valve stems

KEY FEATURES

The FTD II Gravel & Cyclo Cross Series is designed to maximize performance across mixed terrain and demanding riding conditions:

• Increased Traction: Run lower tire pressure for enhanced grip and better control on loose gravel, roots, and rough surfaces.
• Improved Comfort: The advanced foam material absorbs impacts and vibrations, delivering a smoother and more stable ride feel.
• Rim & Sidewall Protection: Helps protect your wheels and tires from impacts, pinch flats, and harsh terrain damage.
• Reduced Rolling Resistance: Lightweight construction minimizes rotating mass while maintaining excellent efficiency.
• Optimized for Tubeless: Specifically engineered for modern tubeless gravel and cyclo cross wheel setups.

ENGINEERED FOR REAL-WORLD RIDING

Flat Tire Defender inserts are developed through extensive field testing in real riding conditions — not just in the lab.

Based on testing, riders can typically reduce tire pressure by approximately 10% compared to standard tubeless setups without inserts. This translates into better traction, increased comfort, and more confidence when riding aggressive gravel routes or technical cyclo cross courses.

WHY USE A GRAVEL TIRE INSERT?

A foam insert can significantly improve the performance and durability of your gravel or cyclo cross bike setup:

• Better Grip: Lower tire pressure improves traction and cornering confidence.
• More Wheel Protection: Helps prevent rim damage from rocks, roots, and hard impacts.
• Enhanced Ride Quality: Reduces trail chatter and absorbs harsh terrain vibrations.
• Increased Stability: Supports tire sidewalls for more predictable handling.
• Confidence on Rough Terrain: Push harder knowing your wheels are better protected.

BUILT FOR MODERN GRAVEL & CX RIDERS

Whether you're racing cyclo cross, exploring backroads, or taking on long-distance gravel adventures, the Flat Tire Defender II Gravel Series is built to improve your ride experience from start to finish.

Lightweight, durable, and performance-driven, it’s the ideal upgrade for riders looking to maximize traction, comfort, and wheel protection without sacrificing speed.

RIDE FARTHER. RIDE HARDER.

Upgrade your gravel or cyclo cross setup with the Flat Tire Defender II 700C Gravel & Cyclo Cross Series and experience the next level of performance, protection, and confidence on every ride.