IV - THE MAIN PROBLEMS Threats to the tyre

MICHELIN 2wheeL - 177

The three main threats to the tyre are physical, environmental and human.

They are usually related to the inflation pressure, damage, the level of wear of the tread, weather conditions, maintenance, load conditions and speed, ... etc. With so many parameters involved, it is impossible to accurately predict the lifespan of a tyre.

PHYSICAL

Age Poor conditions of storage Wear and damage (punctures, cuts, impacts, cracking/ crazing of the tread/sidewall rubber, lumps and bulges, etc).

ENVIRONMENTAL HAZARDS

Extreme temperature. Moisture Ozone Solvents, Hydrocarbons Fuel Chemicals

human

Does not perform routine tyre checks for wear or damage. Does not maintain proper tyre pressure (under inflation or over inflation). Re-inflates a tyre that has run flat or seriously under-inflated. Does not change a tyre before it reaches the legal wear limit. Neglecting a change in behavior of the bike, loss of pressure, vibration, noise, .... Does not inspect a tyre after a severe impact. Has an aggressive riding style. Uses tyres of different sizes or types. Does not replace the valve when replacing a tubeless tyre. Repairs a tyre themselves rather than go to a tyre specialist Temporary repairs that become a permanent solution. Mount a tyre on a wheel that is damaged or distorted. Does not store tyres correctly.

Technical data