Normal for rear brakes to wear faster than front onfwd ?

Normal for rear brakes to wear faster than front onfwd ?

Author
Discussion

myvision

1,945 posts

136 months

Friday 30th November 2018
quotequote all
I ran a 2009 Toyota avensis from new to 100k miles in three years it needed pads and discs all round every 10k miles.
It also chewed through the tyres.

Ares

11,000 posts

120 months

Monday 3rd December 2018
quotequote all
underphil said:
Ares said:
underphil said:
Ares said:
vikingaero said:
Rear pads on MINI R55/56's wear fast.
banghead
I (/wife) have had a couple of cars where the brakes were all perfectly functional, yet the brake dusk accumulation on the rear wheels was always significantly higher than on the fronts (it's possible that the compound used for the rear pads is softer than the front, but not likely)
Front brakes ALWAYS do more braking than the rears, like 60-80% of the braking. Cars usually have bigger brake callipers/discs etc at the front (older cars have discs front, drums rear). My car has 6-piston callipers from, just 4 at the rear.

I've also always had significantly more brake dust on front than rear wheels. Extra things at play if you're getting more dust from the rears - different compound or issues with the brakes.
Have a read before you start declaring gospel:

https://www.knowyourparts.com/technical-resources/...
Yes. Rear brakes now handle more than they used to, but still less than the fronts.


underphil

1,245 posts

210 months

Monday 3rd December 2018
quotequote all
Ares said:
underphil said:
Ares said:
underphil said:
Ares said:
vikingaero said:
Rear pads on MINI R55/56's wear fast.
banghead
I (/wife) have had a couple of cars where the brakes were all perfectly functional, yet the brake dusk accumulation on the rear wheels was always significantly higher than on the fronts (it's possible that the compound used for the rear pads is softer than the front, but not likely)
Front brakes ALWAYS do more braking than the rears, like 60-80% of the braking. Cars usually have bigger brake callipers/discs etc at the front (older cars have discs front, drums rear). My car has 6-piston callipers from, just 4 at the rear.

I've also always had significantly more brake dust on front than rear wheels. Extra things at play if you're getting more dust from the rears - different compound or issues with the brakes.
Have a read before you start declaring gospel:

https://www.knowyourparts.com/technical-resources/...
Yes. Rear brakes now handle more than they used to, but still less than the fronts.
??

"Another factor that has accelerated brake wear (especially rear brake wear) in certain late model vehicles is the change to electronic brake proportioning. The proportioning valve that normally reduces hydraulic pressure to the rear brakes has been eliminated so the rear brakes will handle a higher percentage of the brake load and be more aggressive. The antilock brake system performs the job of brake proportioning by keeping an eye on how the rear brakes are behaving. If the rear brakes start to lock up when braking hard, the ABS system kicks in and cycles pressure to the rear wheels to prevent them from skidding.

This approach helps the vehicle stop in a shorter distance, but also increases rear brake wear dramatically. This means the rear brakes will often wear out before the front brakes."

Ares

11,000 posts

120 months

Monday 3rd December 2018
quotequote all
underphil said:
??

"Another factor that has accelerated brake wear (especially rear brake wear) in certain late model vehicles is the change to electronic brake proportioning. The proportioning valve that normally reduces hydraulic pressure to the rear brakes has been eliminated so the rear brakes will handle a higher percentage of the brake load and be more aggressive. The antilock brake system performs the job of brake proportioning by keeping an eye on how the rear brakes are behaving. If the rear brakes start to lock up when braking hard, the ABS system kicks in and cycles pressure to the rear wheels to prevent them from skidding.

This approach helps the vehicle stop in a shorter distance, but also increases rear brake wear dramatically. This means the rear brakes will often wear out before the front brakes."
Going from 20% of the braking to 30% of the braking would mean that are handling a higher percentage of the braking.

....and we know the rear brake pads will wear out quicker, but if you've ever seen rear brake pads, most cars have thinner and smaller pads on the rear.

underphil

1,245 posts

210 months

Monday 3rd December 2018
quotequote all
Ares said:
Rear brakes almost never wear faster, front does the most braking (most cars have far bigger brakes up front)...

....however, rear pads are almost always thinner, so they last less time.