Land Rover Range Rover Big Brake Kit Upgrade / TTSPORT Classic 8703
A full-size Range Rover already stops well by SUV standards — Land Rover quotes an average braking distance of around 40 meters for a vehicle pushing over two tons. But owners chasing sharper pedal feel and more margin under repeated hard stops often want more than the stock setup can give. This build swaps in a TTSPORT TT8703 six-piston front kit paired with a 405mm drilled rotor, plus a 380mm big-rotor upgrade at the rear.
The car runs its factory 19-inch wheels throughout this install. The front axle gets the full TT8703 caliper-and-rotor package, while the rear keeps its OEM electronic parking brake caliper and steps up to a larger rotor — a common approach on vehicles where the rear caliper isn't a simple bolt-off swap.
Vehicle & Kit Specs
| Item | Specification |
|---|---|
| Vehicle | Land Rover Range Rover, factory 19-inch wheels |
| Front caliper | TTSPORT TT8703 cast monobloc six-piston caliper |
| Front rotor | TTSPORT 405x34mm high-carbon, heat-treated, drilled rotor |
| Rear rotor | TTSPORT 380x26mm big-rotor upgrade, retains factory EPB caliper |
| Lines | TTSPORT stainless steel brake lines |
Why It Works
The TT8703 is a one-piece cast six-piston caliper. A rigid, single-piece body resists flex under hard braking better than a caliper prone to spreading under load — flex is what turns a firm pedal soft and inconsistent, so a stiffer caliper body helps keep pedal feel predictable lap after lap or stop after stop. The drilled 405mm front rotor adds mass and surface area over the stock disc, giving the system more thermal capacity before fade sets in, and the vented/drilled design helps shed heat and gas faster during repeated hard stops.
- Cast monobloc six-piston caliper resists flex for a firmer, more consistent pedal
- 405x34mm drilled front rotor adds heat capacity and helps resist fade
- Both axles clear the factory 19-inch wheels as installed
A larger rear rotor increases the lever arm between the pad's contact point and the axle centerline, which increases braking torque for the same clamping force and friction coefficient. That's the basic reason a bigger rotor shortens stopping distance without needing a caliper change — a useful option on vehicles like this one where the rear caliper houses an electronic parking brake mechanism and isn't a straightforward swap.
Installation Gallery
FAQ
Why does the rear axle get a bigger rotor instead of a caliper swap?
What's included in the front TT8703 kit?
Does the kit fit behind the factory 19-inch wheels?
Need fitment confirmation? Choose the closest TTSPORT series or send your vehicle, wheel size, and intended use before ordering.