Defender OCTA build & parts
| Vehicle | Land Rover Defender OCTA |
|---|---|
| Front calipers | OEM fixed 6-piston calipers, retained |
| Front rotors | STOPFLEX 400 x 38 mm carbon ceramic |
| Pads | STOPFLEX CCB-matched compound |
| Wheels shown | Factory 20-inch package |
| Upgrade scope | Front rotor and pad swap keeping the factory caliper |
Read this before you order
This setup is built around the OCTA's factory fixed 6-piston front calipers, 400 x 38 mm front rotors, and the factory 20-inch wheels shown here. If any of those three don't match your truck, confirm the details with us first.
What the upgrade actually changes
| STOPFLEX feature | Why it matters on the OCTA | What you notice |
|---|---|---|
| Carbon ceramic rotor, ~half the weight of same-size steel | The OCTA is a heavy, fast SUV, and a big steel rotor is a lot of unsprung, spinning weight at each front corner | Lighter steering, suspension that settles quicker over rough ground |
| Holds ~0.3μ friction at 900°C | Long descents and repeated hard stops cook iron rotors and the pedal goes long | Pedal stays firm and predictable when you're working the brakes hard |
| Low dust with STOPFLEX pads | Performance SUVs are notorious for coating wheels in dark dust | Factory 20s stay clean between washes |
| Does not rust after water exposure | Trails, water crossings, wet roads, and washdowns flash-rust iron rotors fast | Rotor faces still look right after the truck gets wet |
| Long-fiber CCB construction | A heavy truck on rough surfaces puts repeated load cycles through the disc | Built for strength, not just a good-looking rotor face |
| Normal cold bite to about -20°C | These get driven in winter and at altitude, not just warmed up on a track | Full braking on the first stop, no warm-up lap needed |
What gets better
- Less unsprung and rotating weight at the front axle
- Pedal that holds up on long grades and repeated hard stops
- Much cleaner wheels with STOPFLEX pads
- No flash-rust after rain, water crossings, or a wash
- Street life around 250,000–300,000 km off-track, versus roughly 100,000 km for steel
What to confirm first
- That your truck is a Defender OCTA on the OEM fixed 6-piston front calipers
- That you're running the factory 20-inch wheels shown here
- That you want a front rotor-and-pad upgrade, not a caliper change
- Your real use mix: overland, towing, winter, the occasional long descent
If you're not sure your truck matches the spec shown here, send us your details and we'll confirm Defender OCTA fitment before you order through our Land Rover CCB collection.
Build gallery
Defender OCTA brake FAQ
Can the Defender OCTA keep its factory 20-inch wheels with this setup?
Yes. This 400 x 38 mm front package is set up for Defender OCTA builds that keep the factory 20-inch wheels and reuse the OEM fixed 6-piston front calipers, so you change the rotors and pads, not the whole corner.
Do these brakes need to warm up before they work?
No. STOPFLEX carbon ceramic brakes are built for the street and bite from the first stop, down to about -20°C. They are not race-only carbon-carbon discs that need heat in them before they do anything.
Will mud or small rocks wreck carbon ceramic rotors off-road?
No brake rotor shrugs off a hard direct hit, but carbon ceramic is extremely hard and wear-resistant. STOPFLEX long-fiber construction is built for repeated load and rough surfaces, and unlike iron it will not rust or flash-corrode after water crossings and washdowns.
Does a carbon ceramic setup cut brake dust on the OCTA?
Yes. Paired with STOPFLEX pads, dust drops sharply versus a typical iron setup, so the factory wheels stay clean instead of going gray with the dark residue performance SUVs are known for.
How long do these rotors last on a street-driven Defender?
For street and overland use that stays off the track, STOPFLEX carbon ceramic rotors can last roughly 250,000 to 300,000 km, compared with around 100,000 km for typical steel rotors. That can mean far fewer rotor changes over the life of the truck.
