GM Gravel Muncher Folding Gravel Tire



Quick Overview

The Serfas® Gravel Muncher is made with a fast rolling low profile center gravel pattern tread while the outer edges closest the sidewalls have a single ring of medium sized lugs that can dig in on corners for improved grip and handling.

FPS® Flat Protection System

Dual Density® Silica Compound

TSR Tubeless Ready



30 Day Warranty
Serfas® Tires are covered by our 30 Day Warranty which guarantees a product free of defects in material and/or workmanship up to 30 days after purchase. This warranty does not apply to damage due to heat, environmental factors, misuse, or negligence. *Tire purchase must be from authorized Serfas® retailer for eligibility.


  • FPS® Flat Protection System
  • Dual Density® Silica Compound
  • Aggressive High Performance Tread Pattern Perfect For Gravel
  • TSR Tubeless Ready
  • Red Accented Sidewall Detail


  • Bead: Folding
  • TPI: 120
  • Size: 650Bx42
  • Pressure: 50 – 80 PSI
  • Weight: 490g +/-

Additional information

Tire Sizes

650Bx42 Folding, 650×42 Folding, 700×45 Folding


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