GroupTyre

1. tread depth
2. tread markings
   • DOT codes
   • load & speed
   • sidewall markings
3. tyre fitting
   • alignment
   • balance
   • punctures
   • valve
4. patterns
5. inflation
6. specialist tyres
   • original equipment
   • runflat
   • winter tyres
7. tyre labelling
   • legislation
   • retailer responsibilities
   • sales process flow
   • telephone sales