Heat Capacity for Long Descents
Application-correct Ø345 mm × 32 mm vented rotors and 79 cm² of piston area per caliper help hold pedal feel through grade after grade.
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Direct-Mount Series · Front Axle · Off-Road 6-Piston
The TTSPORT OR6 front big brake kit is built for Toyota LC150 Prado and Lexus GX400/GX460 owners running heavy. Armor, winch, drawers, long-range fuel, roof tent, larger tires, and trailer loads all ask more from the front brakes — especially on long mountain descents and rough trails where heat control and pedal consistency decide outcomes.
OR6 pairs a forged 6-piston front caliper with Ø345 mm × 32 mm heat-treated high-carbon cast-iron rotors, matched pads, and stainless-steel braided lines. The result is more thermal capacity, a firmer pedal, and predictable modulation under real overland weight — not a harsh, track-only bite that is hard to control off-road.
Application-correct Ø345 mm × 32 mm vented rotors and 79 cm² of piston area per caliper help hold pedal feel through grade after grade.
Pad compound rated 0–600 °C with average μ 0.38 — built for control on washboard, rocks, and slow technical sections, not single-lap sprints.
Engineered for trucks carrying steel bumpers, winches, drawers, fuel, water, recovery gear, and larger tires.
SUS304 stainless-braided PTFE lines reduce hose expansion when the truck is loaded, hot, and working downhill.
Caliper mounts directly to the vehicle-specific front knuckle geometry — no rotor hats or caliper brackets are used on this OR6 configuration.
Toyota Land Cruiser Prado (LC150), Lexus GX400, and Lexus GX460 use the OR6 Ø345 mm × 32 mm front rotor specification.
| Brake Caliper | |
|---|---|
| Series | Direct-Mount Series |
| Model / Application | OR6 |
| Axle Position | Front |
| Piston Count | 6-piston |
| Piston Type | One-piece heat-insulated pistons with dust boots |
| Piston Diameter | 40 mm × 4 / 43 mm × 2 |
| Caliper Dimensions | L 301 mm × W 149 mm × H 130 mm |
| Total Piston Area | 79 cm² per caliper, all pistons combined |
| Manufacturing Process | Two-piece forged aluminum body |
| Net Weight | 4 kg per caliper, without pads |
| Surface Finish | High-temperature gloss coating |
| Recommended Wheel Size | 17 in or larger |
| Recommended Rotor Size | Ø340–355 mm × 32/34 mm |
| Brake Rotor | |
| Rotor Material | Heat-treated high-carbon cast iron |
| Axle Position | Front |
| Rotor Dimensions for This Application | Ø345 mm × 32 mm |
| Construction | One-piece rotor |
| Ventilation | Internally vented |
| Rotor Mounting | Fixed |
| Directional Design | Yes — left/right specific |
| Rotor Face Pattern | Wave Slot |
| Brake Pads | |
| Compatible Rotor Material | Iron / steel rotors only |
| Operating Temperature Range | 0–600 °C |
| Average Friction Coefficient | Average μ: 0.38; variation depends on temperature, line pressure, and rotor condition |
| Lines | |
| Brake Line Construction | Three-layer reinforced construction |
| Brake Line Material | PTFE inner liner / SUS304 stainless-steel braid / PVC protective outer sheath |
| Brake Line Fittings | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
| Vehicle Application & Rotor Mapping | |
| 2009-2023 Toyota Land Cruiser Prado (LC150) | 345 mm × 32 mm |
| 2012-2017 Lexus GX400 | 345 mm × 32 mm |
| 2010-2023 Lexus GX460 | 345 mm × 32 mm |
| Fitment & Installation | |
| Vehicle Application | 2009-2023 Toyota Land Cruiser Prado (LC150) · 2012-2017 Lexus GX400 · 2010-2023 Lexus GX460 |
| Model Years | Toyota Land Cruiser Prado LC150: 2009-2023 · Lexus GX400: 2012-2017 · Lexus GX460: 2010-2023 |
| Axle | Front |
| Caliper Mounting Type | Direct mount |
| Minimum Wheel Size | 17 in or larger |
| Minimum Spoke Clearance | 91 mm |
| Brake Line Fitting Type | Vehicle-specific fittings; caliper-side and chassis-side fittings vary by application |
| Bedding-In Procedure | Required |
For 2009-2023 Toyota Land Cruiser Prado (LC150), 2012-2017 Lexus GX400, and 2010-2023 Lexus GX460, the correct OR6 rotor specification is Ø345 mm × 32 mm. Do not use the older 335 / 345 / 355 mm option layout for this application.
2 × OR6 forged 6-piston front calipers, left/right specific.
Brake pads for both front calipers, rated 0–600 °C and intended for iron / steel rotors.
2 × one-piece front rotors, Ø345 mm × 32 mm, heat-treated high-carbon cast iron, internally vented and left/right specific.
2 × stainless-steel braided brake lines with PTFE inner liner, SUS304 braid, PVC protective outer sheath, and vehicle-specific fittings.
Vehicle-specific direct-mount hardware for Toyota LC150 Prado / Lexus GX400 / GX460 front-axle installation.
Direct-Mount Series uses one-piece rotors and direct-mount calipers. Rotor Hats and Caliper Brackets are not included because they are not used on this OR6 application.
OR6 requires 17 in or larger wheels with at least 91 mm of spoke clearance. Wheel diameter alone is not enough; spoke shape, barrel profile, and offset all affect fit.
17 in or larger wheels are required.
Minimum spoke clearance: 91 mm. Verify spoke shape, wheel offset, and inner barrel profile before ordering.
Application: 2009-2023 Toyota Land Cruiser Prado (LC150), 2012-2017 Lexus GX400, and 2010-2023 Lexus GX460, front axle, with Ø345 mm × 32 mm rotor specification.
Send model year, trim, wheel specs, and intended use before ordering if you are unsure about clearance.
Yes. This listing covers the front axle 6-piston upgrade for 2009-2023 Toyota Land Cruiser Prado (LC150), 2012-2017 Lexus GX400, and 2010-2023 Lexus GX460. The correct rotor specification for this application is Ø345 mm × 32 mm.
2009-2023 Toyota Land Cruiser Prado (LC150), 2012-2017 Lexus GX400, and 2010-2023 Lexus GX460 use Ø345 mm × 32 mm one-piece front rotors in the OR6 Direct-Mount Series. Do not use the older 335 / 345 / 355 mm option layout for this application.
OR6 requires 17 in or larger wheels and a minimum spoke clearance of 91 mm. Wheel diameter alone is not enough; spoke profile, offset, and barrel shape must be checked before ordering.
No. This is a Direct-Mount Series OR6 application with one-piece rotors and direct-mount calipers. Rotor Hats and Caliper Brackets are not used on this configuration.
OR6 is tuned for control under sustained load — long descents, washboard, slow technical work — with a 0–600 °C pad and average μ 0.38. A track BBK targets short, very high-temperature stops and can feel grabby and hard to modulate off-road.
Yes. Each kit ships with two SUS304 stainless braided front lines, OR6 pads, one-piece directional rotors, calipers, and direct-mount hardware.
Yes. A proper bedding-in procedure is required to transfer pad material evenly to the rotor face and develop full friction. Skipping this step causes uneven deposits, vibration, and reduced bite.
Need a fitment check or help confirming OR6 compatibility for your LC150 Prado / GX400 / GX460 build?
Brake Kits · Fitment · Installation · Care Guide
A brake kit is not just a pair of larger calipers. Calipers, rotors, pads, hoses, brackets, rotor hats, mounting hardware, brake fluid, wheel clearance, and bedding procedure all work together as one system.
This guide explains how to confirm the right TTSPORT brake kit before ordering, what to check before installation, and how to care for the system after installation.
Do not order a brake kit by vehicle name alone. The correct kit depends on the vehicle, axle position, wheel package, driving use, and brake system layout.
Brake kits are application-specific. A visually similar kit can still have the wrong rotor offset, bracket geometry, hose fitting, caliper position, or wheel clearance requirement.
Different TTSPORT brake kit series use different hardware layouts. Always confirm what the kit includes before purchase.
Use direct-mount calipers and one-piece rotors where specified. These kits do not use rotor hats or caliper brackets unless the final product page clearly states otherwise.
Use separate friction rings and rotor hats. Hat offset, ring bolt pattern, hardware style, and rotor direction must be matched correctly.
May require bespoke brackets, rotor hats, brake lines, and engineering confirmation based on knuckle, hub, wheel, and competition use.
Require extra attention to wheel clearance, tire size, vehicle load, descent control, hose routing, and dust / water exposure.
Do not assume every brake kit includes the same parts. Package contents vary by product series, vehicle application, and final order configuration.
Before finalizing the order, review the kit specification carefully. Confirm the brake kit is matched to your vehicle and wheel setup, not only to the model name.
If any part is not listed in the final order or product page, do not assume it is included.
Inspect every component before installation. Do not modify, grind, drill, stretch, force, or space brake kit components to make them fit.
Safety: Brake kits affect braking force, hydraulic sealing, heat control, wheel clearance, and vehicle stability. Do not install the kit if fitment, torque, direction, clearance, or compatibility is unclear.
Correct installation is as important as the brake kit itself. A properly engineered kit can still perform poorly if installed with dirty mounting faces, incorrect torque, poor hose routing, or trapped air in the hydraulic system.
Verify caliper centering over the rotor and confirm even pad sweep across the friction surface.
Confirm left / right rotor direction if the rotor uses directional vanes or directional face pattern.
Check brake hose length and routing at full steering lock and full suspension travel. No twisting, rubbing, stretching, or kinking.
Check caliper-to-spoke and caliper-to-barrel clearance before road use. Wheel diameter alone is not enough.
Use the correct brake fluid type and bleed the system until pedal feel is firm and consistent.
Torque all brake hardware to the specified value. Do not reuse damaged, unknown, stretched, or corroded safety-critical fasteners.
Brake pads and rotors need a controlled bedding process before full performance is available. Bedding helps create an even transfer layer on the rotor surface, improving bite, pedal consistency, and vibration resistance.
Street pads, race pads, iron rotors, two-piece rotors, and carbon ceramic rotors may require different bedding procedures. Use the procedure supplied with the specific kit.
After installation and bedding, give the system a short break-in period before aggressive use. Pedal feel, pad contact, dust output, and noise may continue to settle after the first drives.
Brake kits need regular inspection, especially after track use, off-road use, towing, mountain driving, winter salt exposure, or any brake service.
Inspect pads, rotors, fluid level, and hose condition during normal service intervals. Prioritize quiet operation, smooth pedal feel, and even wear.
Check pad thickness, rotor surface condition, and fluid condition more often. Long descents create sustained heat even without track use.
Inspect for mud, sand, stone impact, hose abrasion, dust boot damage, and caliper contamination after trail use.
Inspect pads, rotors, fluid, and hardware before and after every event. Track heat shortens service intervals.
Check rear brake temperature, hydraulic handbrake behavior, pad wear, rotor cracking, and hardware condition frequently.
Use only compatible pads and approved bedding procedures. Inspect rotor surface condition carefully and avoid incompatible friction materials.
Do not continue driving if the brake system shows any of the following symptoms. Inspect the system or contact a qualified brake technician before using the vehicle again.
Send your vehicle details, brake kit series, wheel specs, driving use, photos, and any symptoms you notice. TTSPORT will help confirm fitment, installation checks, and the correct care path for your brake kit.
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