Advertisement



Mini2nut

Well-known member
Joined
Apr 2, 2020
Messages
414
Reaction score
640
Location
CA
Vehicles
Tacoma TRD Pro
Country flag
It’s still amazing to me that most full size pickups still use leaf springs that were originally used in carts and carriages.
 

CyberMoose

Well-known member
First Name
Jacob
Joined
Aug 19, 2020
Messages
302
Reaction score
353
Location
Canada
Vehicles
Cybertruck
Country flag
They are pretty strong and reliable, especially for semi trucks. When I was in highschool I did a coop at an industrial auto shop and we were constantly replacing leaf springs. Another huge factor for them is that they are much cheaper than something like an automatic air suspension and quite easy to replace for maintenance. Air suspension is nice, automatic/adaptive air suspension is beautiful, but they each come with added costs.
 

ldjessee

Well-known member
First Name
Lloyd
Joined
Apr 22, 2020
Messages
394
Reaction score
280
Location
Indiana, USA
Vehicles
reservation for 2 motor Cybertruck, Nissan Leaf, Subau Outback, Suzuki C50
Occupation
programmer
Country flag
They are pretty strong and reliable, especially for semi trucks. When I was in highschool I did a coop at an industrial auto shop and we were constantly replacing leaf springs. Another huge factor for them is that they are much cheaper than something like an automatic air suspension and quite easy to replace for maintenance. Air suspension is nice, automatic/adaptive air suspension is beautiful, but they each come with added costs.
Drum brakes are cheaper than disk brakes. They are still on some motorcycles, where smaller, lighter weight components are very much what is designed for, but a brand new motorcycle can still have a rear drum brake... never mind that it over heats and loses stopping power, never mind that it is heavier than a disk brake, and never minde a disk brake can easily have ABS added... which higher end motorcycles are coming standard with now.

Sometimes a manufacturer thinks that safety is not the first concern, that cost is the first concern.

I am glad Tesla seems to put safety higher on their priority list.
 

CyberMoose

Well-known member
First Name
Jacob
Joined
Aug 19, 2020
Messages
302
Reaction score
353
Location
Canada
Vehicles
Cybertruck
Country flag
Drum brakes are cheaper than disk brakes. They are still on some motorcycles, where smaller, lighter weight components are very much what is designed for, but a brand new motorcycle can still have a rear drum brake... never mind that it over heats and loses stopping power, never mind that it is heavier than a disk brake, and never minde a disk brake can easily have ABS added... which higher end motorcycles are coming standard with now.

Sometimes a manufacturer thinks that safety is not the first concern, that cost is the first concern.

I am glad Tesla seems to put safety higher on their priority list.
Yes safety is definitely the highest priority for most companies I would say. If something can meet regulations to be considered safe, I think most companies would strive for that. While yes more safety is better, a company still needs to be profitable.

Drum brakes and leaf springs aren't unsafe, especially when you are driving properly. Just like a racecar style seatbelt would offer more protection but would also be more expensive in cars.
 

Crissa

Well-known member
First Name
Crissa
Joined
Jul 8, 2020
Messages
632
Reaction score
543
Location
Santa Cruz
Vehicles
2014 Zero S, 2013 Mazda 3
Country flag
The only place a drum brake is allowed is the rear wheel of a motorcycle... Where you don't use extra braking and you actually want less stopping power in an emergency.

Overheating isn't an issue in a motorcycle rear brake.

Most no longer do because the drum brake would be a special part now,

-Crissa
 

Ryan95738

Well-known member
First Name
Ryan
Joined
Jan 24, 2020
Messages
65
Reaction score
34
Location
Skagit Valley
Vehicles
CyberTruck
Occupation
CNA
Country flag
The only place a drum brake is allowed is the rear wheel of a motorcycle... Where you don't use extra braking and you actually want less stopping power in an emergency.

Overheating isn't an issue in a motorcycle rear brake.

Most no longer do because the drum brake would be a special part now,

-Crissa
I really liked the drum brakes in my Toyota, and I wasn't even that old
 

Crissa

Well-known member
First Name
Crissa
Joined
Jul 8, 2020
Messages
632
Reaction score
543
Location
Santa Cruz
Vehicles
2014 Zero S, 2013 Mazda 3
Country flag
I really liked the drum brakes in my Toyota, and I wasn't even that old
I had drum brakes on my last new car's rear, and they sucked 'cause they would fuse together and needed to be replaced as a unit. Glad they're gone.

-Crissa
 
Last edited:

ldjessee

Well-known member
First Name
Lloyd
Joined
Apr 22, 2020
Messages
394
Reaction score
280
Location
Indiana, USA
Vehicles
reservation for 2 motor Cybertruck, Nissan Leaf, Subau Outback, Suzuki C50
Occupation
programmer
Country flag
The only thing good about drum brakes for me is that I know I could make a drum brake from scratch. I am sure I could not do that for a diskbrake.
 

Advertisement




Advertisement







 
Top