Tyres, wheels and balance 387 Tyre construction 388 Types of tyre construction 389 Characteristics of tyres 389 Tyre profiles 390 Tyre sizes and identification 391 Tyre tread patterns 392 Australian Design Rules 393 Tyre wear 394 Tyre rotation 396 Wheels 396 Removing and fitting tyres 398 Lighttruck wheels and tyres 399 Wheel balance 400 Balancing wheels 402 Technical terms 404 Review questions 404