
RDA Brakes · Part number RDA7905 · NZ$149.00 incl. GST
Need new disc brake rotors for your Holden Commodore or Berlina? These rotors are what your brake pads grip onto to bring you to a safe stop. Easy peasy!
NZ$149.00 including GST. Part number RDA7905.
Disc Brake Rotor Replacement Guide — Featuring RDA
> Disc brake rotors are the unsung heroes in your Holden Commodore or Berlina's braking setup. They face a tough life, dealing with constant friction and heat. Over time, this can lead to them wearing down, meaning your braking might not be as sharp as it used to be, especially if you give your car a bit of stick.
Symptoms That Led You Here
• Squealing or grinding noises when you hit the brakes.
• Feeling a vibration or pulsing through the brake pedal.
• Your stopping distance seems to have increased.
• You can see scoring or damage on the rotor itself.
• Your brake pads are wearing unevenly.
Will it pass WOF?
Worn or damaged disc brake rotors are a surefire way to fail a WOF here in New Zealand. Your rotors need to be within the minimum thickness and free from serious damage to pass the test.
🛠️ Bob's "Get It Done Right" Companion Checklist
Before you start yanking things apart, let's make sure you're set up for success. This isn't just about swapping parts; it's about doing the job safely and properly. Here's your quick rundown:
• Safety First, Mates!: Never, ever get under a car that's only supported by a jack. Use proper Jack Stands. Safety glasses are a no-brainer to keep rust and brake dust out of your peepers, plus grab some Nitrile Gloves – keeps the hands clean.
• Cleanliness is Next to Godliness: Before slapping on those new rotors, give everything a good blast with Brake Cleaner. This gets rid of all the brake dust and grime, giving your new pads the best chance to bed in properly. Plus, it'll help you spot any leaks or issues while you're in there.
• Anti-Seize is Your Friend: A tiny dab of anti-seize caliper grease on the caliper pins and the back of the brake pads keeps everything moving smoothly and quietly. Trust me; you'll thank yourself when it's time for the next brake job.
DIY or Workshop?
Difficulty: 6/10
Estimated Time: 1-2 hours per rotor
Tools Required: Jack, jack stands, wheel wrench, socket set, torque wrench, brake cleaner, and potentially a brake caliper tool.
Expert Recommendation
Swapping out your disc brake rotors is vital for keeping your Holden Commodore or Berlina stopping safely. Bob @ CARFIX is always keen to lend a hand figuring out exactly what you need for your Holden. Pop into Bob's Shop for a yarn!
Fitment Notes
Double-check these fit your specific Holden Commodore or Berlina model and year. Some models might have different rotor sizes or need a slightly different fitting method. Best to be sure!
Bob's tip: Remember to dispose of your old rotors responsibly. Most metal recyclers will take them off your hands.
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🛠️ Bob's Pro Tip: Do the Job Right!
> GDB7715)](/parts/GDB7715) to ensure a perfect bed-in and get the job done properly first time!
🧰 What Else You'll Need:
• Safety First: Never work under a vehicle supported only by a jack. Always secure it on heavy-duty safety jack stands.
• Brake Dust Protection: Keep a pack of Nitrile Gloves handy to protect your hands from grease and dust.
• Clean and Prep: Use Brake Cleaner to clean the anti-corrosion shipping oil off the new rotors before mounting the calipers.
• Lubrication: Apply caliper grease to caliper slide pins and pad contact points to prevent squealing.