Michelin Parts

Explore all factory and aftermarket dirt bike products directly engineered by Michelin.

Technical Authority Guide Brand Engineering & Heritage Guide

Michelin — French Engineering, Silica Technology & StarCross Innovation

### Brand Heritage & Global Motorsport Innovation Founded in 1889 by brothers Édouard and André Michelin in Clermont-Ferrand, France, Michelin is one of the world's most prestigious and technologically advanced tire manufacturers. With over 130 years of pioneering rubber chemistry and structural engineering, Michelin has earned countless world championships across MotoGP, World Rally Championship (WRC), FIM Motocross World Championship (MXGP), and the Dakar Rally.

Michelin's off-road tire research is conducted at its state-of-the-art Technology Center in Ladoux, France. Michelin was the first manufacturer to introduce synthetic Silica Technology into commercial motocross tires with the revolutionary StarCross 6 series. By replacing traditional carbon black fillers with sub-micron silica particles, Michelin engineers achieved a monumental leap in tire performance: simultaneously increasing wet and dry traction while dramatically reducing abrasive wear and knob chunking.

  • StarCross 6 Medium Soft Front & Rear: The most versatile soft-to-intermediate motocross tire, featuring Adaptive Design block architecture and Silica Technology.
  • StarCross 6 Hard Rear: Hard-pack, clay, and blue-groove specialized rear tire designed for maximum surface contact and extreme tear resistance.
  • StarCross 6 Medium Hard: Intermediate-to-hard terrain tire delivering exceptional braking stability and longevity on packed dirt.
  • StarCross 6 Sand: Deep-sand and mud tire featuring aggressive paddle-scoop geometry for maximum drive.
  • Michelin Bib Mousse Inserts: The world's leading flat-proof cellular foam insert system, replacing inner tubes for zero-flat reliability in cross-country and enduro racing.

### How Michelin Silica Technology Outperforms Standard Compounds 1. Homogeneous Silica Matrix: Standard tires rely on carbon black fillers that degrade and lose grip as the sharp outer edge of the knob wears down. Michelin's Silica Technology maintains chemical grip throughout the entire depth of the tread block, delivering up to 19% more traction when worn compared to conventional tires. 2. Adaptive Design Technology: Michelin's computerized tread block arrangement features micro-siped edges that adapt dynamically to ground pressure, maximizing braking traction when upright and delivering progressive lateral bite at extreme lean angles. 3. High-Compliance Polyester Carcass: Michelin's 2-ply and 3-ply high-tensile polyester casing provides superior internal damping over high-speed chop, reducing rider wrist and forearm fatigue.

### The Science of Bib Mousse Technology Invented by Michelin in 1984 for extreme desert rally racing, the Michelin Bib Mousse replaces standard pneumatic tubes with an engineered micro-cellular butyl foam ring. Simulating an air pressure of approximately 13 PSI (0.9 bar), the Bib Mousse eliminates the risk of pinch flats, thorn punctures, and rim strikes, making it the indispensable choice for hard enduro, GNCC, and desert competition.

  • Bib Mousse Care: When installing Michelin Bib Mousse inserts, always coat the insert generously with Michelin Mousse Gel to reduce internal friction and heat buildup.
  • Tube Pressures: If running standard inner tubes, set cold operating pressure at 12.5-13.5 PSI for StarCross 6 Medium Soft front and rear tires.
  • Bead Seating: Lubricate tire beads thoroughly with soapy water or tire paste; inflate to 32 PSI to pop beads onto the rim seat before adjusting to operating pressure.
  • Storage Tips: Store unused tires and bib mousses in a cool, dark environment away from direct sunlight, electric motors, and ozone sources.

Frequently Asked Questions

Q: Why does Michelin Silica Technology extend tire life?

A: Silica creates a denser molecular network within the rubber compound that resists mechanical tearing and abrasive wear, allowing tread knobs to maintain sharp edges up to 19% longer.

Q: How long does a Michelin Bib Mousse last?

A: Under normal riding conditions with proper gel lubrication, a Michelin Bib Mousse typically provides 6 to 12 months of competition service.

Q: Can I run the StarCross 6 Medium Soft in muddy conditions?

A: Yes. The Medium Soft features wide block spacing designed to clear mud and wet clay efficiently while biting into firm dirt underneath.

Q: What is the benefit of reversible tread patterns on StarCross 6?

A: StarCross 6 rear tires feature a symmetrical block layout that allows you to dismount and flip the tire on the rim to expose fresh leading braking edges as the knobs wear.