The main purpose for Dual rear tires is for 2 basic reasons. 1. When towing a heavy load, it lessens the chance of over stressing the rear tires (In extreme cases, the blowout of the rear tires) 2. It provides more traction in all situations (by having more rubber on the road, the torque put out by the engine is displaced in more surface area than single rear tires) I'm sure a true expert can put it into better words, but there's a basic answer.
crossplys are only fitted on the rear on a dual system.
One purpose of dual rear tires is to distribute very heavy loads over a larger area. Though tires can often handle the load, they will often sink in on soft ground. Another major advantage is that if one tire has a blowout (suddenly loses its air), the other tire will take the load and the driver won't have trouble controlling the vehicle, sometimes even able to continue driving to a service shop.
The foil in front of the rear tires is there to proven air from getting under the rear tires and causing the tires to loose traction.
That'd be a tadpole trike
If it's just the rear axle which has dual tyres, then the answer would be six. If both axles have dual tyres, then eight.
Trade the rear tires to the front and the front tires to the rear. Every other time you do it, trade the right front tire to the left rear and right rear to left front
trucks with dual tires in the back are designed that way to improve the way it distributes the weight of the cargo/truck so it can tow/haul more
You cannot rotate tires on a vehicle when the rear tires are wider than the front. They must stay where they are,
DIRECTIONAL tires stay on the same side of the vehicle Front to rear , rear to front
It is a Rear Wheel Drive so tire chains go on the rear.
you can only use the single in and dual muffler on the rear to get dual exhaust.there is no way to use true dual pipes under the car.the floor pan is to low and they cant cross the rear axle.....
for traction