
Rear drum brake cars are not inferior. Here are the specific details: 1. Drum Brake Introduction: Drum brakes operate by using hydraulic pressure to push the brake shoes inside the brake drum outward, causing friction between the brake shoes and the inner surface of the rotating brake drum, thereby achieving braking. The inherent structural characteristics of drum brakes mean that, in terms of braking force alone, they surpass disc brakes. The name 'drum brake' comes from the brake drum that moves synchronously with the wheel, resembling the shape of a drum. The braking force generated by drum brakes is actually much greater than that of disc brakes of the same size. However, drum brakes also have disadvantages, such as poor heat dissipation and excessive braking force. Frequent mountain driving requiring continuous or long-distance braking can lead to brake fade and unpredictable accidents. 2. Advantages of Drum Brakes: They provide strong braking force, enabling timely stopping of the vehicle. Drum brakes are widely used in large transport vehicles like trucks and buses. They have low manufacturing costs, with simpler part processing and assembly, and the rear drum brake handbrake mechanism is relatively easy to install.

As a veteran mechanic with 20 years of experience, I think drum brakes aren't as bad as the internet makes them out to be. They're perfectly adequate for daily grocery-getter cars, and actually less prone to skidding in rainy weather. Just look at the work trucks on sites - they all have drum brakes on the rear wheels. Durability and reliability are what really matter. Of course, if you're constantly driving mountain roads, you'd want disc brakes. But for regular family use, drum brakes are much easier to maintain - replacing brake pads costs just a few dozen yuan, while disc brakes require hundreds just for new rotors. I've seen too many taxis go 300,000 kilometers without needing rear brake service. The simpler design actually means lower failure rates.

When I bought a car last year, I also hesitated about the drum brake issue. In actual driving, it doesn't affect performance at all. The braking in city traffic is sufficiently linear, and the ABS intervention during emergency braking is very timely. The key advantage is the hassle-free : during the last dealership check, they said the rear brakes still had 70% thickness left, while a friend with the same model using disc brakes spent over 800 yuan replacing brake discs. The only drawbacks are needing to pump the brakes a couple more times after driving through water to drain it, and potential rusting and sticking if left unused for long periods. But considering the 3,000 yuan savings compared to disc brakes, these are acceptable trade-offs.

From a structural perspective, drum brakes actually have about 20% larger braking surface area compared to disc brakes, which means they offer better braking performance under normal conditions. However, their enclosed design does lead to slower heat dissipation, potentially causing heat fade during continuous downhill braking. Fortunately, modern vehicles are equipped with EBD (Electronic Brake-force Distribution) systems that automatically adjust front/rear braking ratios. I've tested fully-loaded drum brake vehicles on mountain roads with ten consecutive emergency stops - the braking distance was only about half a meter longer than disc brakes. For daily commuting, there's practically no difference. Interestingly, some performance cars even intentionally retain drum brakes as handbrakes for drifting purposes.

My girlfriend's Golf has rear drum brakes, and she can't feel any difference when driving. Once, when we went to fix a punctured tire, the mechanic pointed at the drum brakes and said, 'This setup won't need any attention for ten years.' Compared to her friend's Civic with disc brakes, which had to be repaired three times last winter due to brake noise, drum brakes are the most hassle-free—they don't care about driving habits, unlike disc brakes, which often get complaints about cold-start squeaking. As for technological advancements, Volkswagen's current electronic drum brakes, which use a motor to control parking, are much more efficient than traditional handbrakes. Of course, performance enthusiasts might scoff at them, but for regular families looking for convenience, they're a perfect fit.

I've studied the European and American markets. Models like the Skoda Octavia Combi and 308 use rear drum brakes in Europe. They perform perfectly fine even on Germany's unlimited-speed autobahns, proving they meet all safety standards. Some Chinese consumers view drum brakes as cost-cutting measures, but overlook several major advantages: 1. Dust covers effectively block mud and sand, making them particularly suitable for rural dirt roads; 2. Stronger parking brake locking force ensures more stable parking on slopes; 3. Larger wheel hub space facilitates easier installation of snow chains. My recommendation: For northern regions with frequent rain and snow, rear drum brakes are actually more practical than small-sized disc brakes.


