Final answer:
Trailer-specific tires and tractor tires differ in tread depth, weight, and retreading capabilities.
Step-by-step explanation:
Trailer-specific tires and tractor tires are designed for different purposes in the context of transportation.
Trailer tires typically have shallower treads compared to tractor tires. This is because trailers do not provide any power, so they do not need as much traction as tractors.
Trailer tires are also lighter in weight compared to tractor tires. Since trailers are typically towed by tractors, reducing the weight of the trailer tires contributes to overall fuel efficiency.
While tractor tires can often be retreaded to extend their lifespan, trailer tires generally cannot be retreaded due to their design and construction.