Direct-Mount 後軸適用性
專為 Toyota Tundra（XK50）與 Toyota Sequoia（XK60）設計的車型專用後輪直上配置。
產品詳情
xDirect-Mount 系列 · 後軸 · 4 活塞
2007-2021 Toyota Tundra（XK50）& 2008-2022 Toyota Sequoia（XK60）AR4 直上型後輪大煞車套件
TTSPORT AR4 後輪大煞車套件為 Direct-Mount 系列後軸升級方案，適用於 2007-2021 Toyota Tundra（XK50）與 2008-2022 Toyota Sequoia（XK60）。鍛造四活塞後卡鉗、Ø365 mm × 28 mm 內通風碟盤、不鏽鋼金屬煞車油管，以及車型專用接頭，有助於在拖曳、載重行駛，以及前後煞車同步升級的配置下，恢復均衡的後軸煞車表現。
為什麼 Toyota Tundra XK50 與 Sequoia XK60 改裝玩家選擇 AR4
後煞車的作用不只是增加最大制動力。正確的後活塞面積、碟盤質量與卡鉗幾何，有助於在重煞時維持車身穩定、減少過度偏前的煞車配比，並在車輛載運乘客、貨物或拖車負載時，恢復扎實的踏板回饋。
4 活塞鍛造卡鉗
兩片式鍛造鋁合金卡鉗本體，搭配 30 mm × 2／34 mm × 2 隔熱活塞與防塵套。
32.3 cm² 活塞面積
每只卡鉗總活塞面積達 32.3 cm²，有助於在載重卡車與 SUV 改裝配置中恢復後軸的煞車貢獻。
Ø365 mm × 28 mm 後碟盤
一體式內通風後碟盤可提升後軸熱容量，同時讓 Direct-Mount 系列硬體維持結構簡單、易於保養。
車型專用煞車油管
PTFE 內層、SUS304 不鏽鋼編織層與 PVC 外層保護套管，有助於減少油管膨脹並提升踏板一致性。
均衡的後軸升級
專為拖曳、載重行駛以及前 + 後煞車同步升級而設計，不會讓後軸煞車力道過強。
AR4 直上型技術規格與套件選項
| 煞車卡鉗 | |
|---|---|
| 系列 | 直裝式系列 |
| 型號 / 適用車型 | AR4 |
| 安裝軸位 | 後軸 |
| 活塞數量 | 4活塞 |
| 活塞類型 | 兩片式隔熱活塞，附防塵套 |
| 活塞直徑 | 30 mm × 2 / 34 mm × 2 |
| 卡鉗尺寸 | 長 270 mm × 寬 162 mm × 高 106 mm |
| 活塞總面積 | 每顆卡鉗 32.3 cm²（所有活塞合計） |
| 製造製程 | 兩片式鍛造鋁合金本體 |
| 淨重 | 每顆卡鉗 3.20 kg（不含煞車來令片） |
| 表面處理 | 高溫亮面塗層 |
| 建議輪圈尺寸 | 17 吋或以上 |
| 建議碟盤尺寸 | Ø365 mm × 28 mm |
| 煞車碟盤 | |
| 碟盤材質 | 熱處理高碳鑄鐵 |
| 安裝軸位 | 後軸 |
| 本車型適用碟盤尺寸 | Ø365 mm × 28 mm |
| 結構 | 一體式碟盤 |
| 通風設計 | 內通風式 |
| 碟盤固定方式 | 固定式 |
| 方向性設計 | 有 — 左右專用 |
| 碟盤表面紋路 | 弧形溝槽 |
| 煞車來令片 | |
| 相容碟盤材質 | 僅適用鑄鐵／鋼製碟盤 |
| 工作溫度範圍 | 0–600 °C |
| 平均摩擦係數 | 平均摩擦係數 μ：0.38；變動取決於溫度、管路壓力與碟盤狀態 |
| 煞車油管 | |
| 煞車油管結構 | 三層強化結構 |
| 煞車油管材質 | PTFE 內層 / SUS304 不鏽鋼編織層 / PVC 保護外鞘 |
| 煞車油管接頭 | 車型專用接頭；卡鉗端與車身端接頭依車型而異 |
| 車型適用與碟盤對應 | |
| 2007-2021 Toyota Tundra (XK50) | 後輪 · Ø365 mm × 28 mm |
| 2008-2022 Toyota Sequoia (XK60) | 後輪 · Ø365 mm × 28 mm |
| 車型適配 & 安裝 | |
| 主要適用車型 | 2007-2021 Toyota Tundra (XK50) · 2008-2022 Toyota Sequoia (XK60) |
| 車型年份 | Toyota Tundra XK50：2007-2021 · Toyota Sequoia XK60：2008-2022 |
| 軸別 | 後軸 |
| 卡鉗安裝型式 | 直裝式 |
| 最小輪圈尺寸 | 17 吋或以上 |
| 最小輪輻間隙 | 100 mm |
| 駐車煞車相容性 | 車型專用；訂購前請確認正確的後軸硬體規格 |
| 煞車油管接頭型式 | 車型專用接頭；卡鉗端與車身端接頭依車型而異 |
| 磨合（開皮）程序 | 必要 |
針對 2007-2021 Toyota Tundra（XK50）與 2008-2022 Toyota Sequoia（XK60），正確的 AR4 後碟盤規格為 Ø365 mm × 28 mm。下單前請確認 17 吋以上輪圈、輪輻最少 100 mm 閃避空間、後軸硬體以及手煞車相容性。
AR4 直上型套件內容物
卡鉗 ×2
2 × AR4 鍛造四活塞後卡鉗，左右專用。
煞車來令片
兩顆後卡鉗適用的煞車來令片，耐溫 0–600 °C，適用於鑄鐵／鋼製碟盤。
煞車碟盤 ×2
2 × 一體式後碟盤，Ø365 mm × 28 mm，熱處理高碳鑄鐵，內通風，弧形溝槽，且左右專用。
煞車油管 ×2
2 × 三層不鏽鋼編織煞車油管，內層為 PTFE、SUS304 編織層、PVC 保護外鞘，並配備車型專用接頭。
安裝五金
專為 Toyota Tundra XK50 / Sequoia XK60 後軸安裝所設計的車型專用直上硬體。
Direct-Mount 系列採用一體式碟盤與直上式後卡鉗。此 AR4 應用不使用碟盤盤帽與卡鉗轉接座。
這組套件能裝上你的 Toyota Tundra XK50 或 Sequoia XK60 嗎？
AR4 需要 17 吋或更大的輪圈，且輪輻間隙至少須達 100 mm。訂購前必須確認後駐車煞車相容性與車型專用煞車油管接頭。
1. 輪圈直徑
需使用 17 吋或更大輪圈。
2. 輪輻間隙
最小輪輻間隙：100 mm。訂購前請檢查輪輻形狀、ET 值、墊片使用與輪圈內桶輪廓。
3. 車型
適用車型：2007-2021 Toyota Tundra（XK50）與 2008-2022 Toyota Sequoia（XK60）後軸，碟盤規格為 Ø365 mm × 28 mm。
訂購前請提供您的年式、車型等級、後煞車硬體照片、輪圈規格與前煞車配置，以便 TTSPORT 確認相容性。
Toyota Tundra XK50 與 Sequoia XK60 安裝與磨合
- 此 AR4 套件專為 2007-2021 Toyota Tundra（XK50）與 2008-2022 Toyota Sequoia（XK60）的後軸所打造。
- 正確的後碟盤規格為 Ø365 mm × 28 mm。
- Direct-Mount 系列採用車型專用後安裝幾何與車型專用煞車油管接頭。
- 駐車煞車相容性取決於確切的後煞車硬體配置，且訂購前必須確認。
- 訂購前請確認使用 17 吋或更大輪圈，且輪輻間隙至少 100 mm。
- 後煞車性能最佳的前提，是搭配正確匹配的前煞車配置。在進行僅後輪升級前，請先確認您的前煞車配置。
- 必須執行正確的磨合程序，使來令片材質均勻轉移至碟盤面，並穩定摩擦性能。
- 建議由合格的煞車技師進行專業安裝。
Toyota Tundra XK50 與 Sequoia XK60 AR4 後輪大煞車套件常見問題
這組 AR4 後煞車套件能對應 2007-2021 Toyota Tundra XK50 與 2008-2022 Toyota Sequoia XK60 嗎？
可以。這組 AR4 Direct-Mount 後煞車套件專為 2007-2021 Toyota Tundra（XK50）與 2008-2022 Toyota Sequoia（XK60）配置。正確的後碟盤規格為 Ø365 mm × 28 mm。
這款 AR4 套件對應的車軸與碟盤尺寸為何？
這是一套後軸專用套件，採用 Ø365 mm × 28 mm 一體式、內通風、方向性後碟盤，表面為曲線溝槽設計。
需要多大的輪圈尺寸與輪輻間隙？
需使用 17 吋或更大的輪圈，且輪輻與後卡鉗之間至少需有 100 mm 的最小間隙。僅有輪圈直徑並不足夠；訂購前必須檢查輪輻形狀、偏移量、是否使用墊片，以及輪圈內桶輪廓。
這款套件是否包含碟盤中心盤或卡鉗轉接座？
沒有。這是 Direct-Mount 系列的 AR4 應用，採用一體式後碟盤與直裝式後卡鉗。此配置不使用碟盤中心盤與卡鉗轉接座。
是否保留手煞車相容性？
手煞車相容性依車型而異，取決於實際的後煞車硬體配置。訂購前請與 TTSPORT 確認您的年式、車型等級與後煞車硬體。
我可以將它作為僅後輪升級來安裝嗎？
可作為後煞車升級安裝，但後煞車性能最理想的情況，是搭配經過正確匹配的前煞車配置。若只進行後煞車升級，請先向 TTSPORT 確認您的前煞車配置。
需要磨合（開皮）嗎？
是的。必須進行正確的磨合（bedding-in）程序，讓來令片材質均勻附著於碟盤表面，並穩定摩擦性能。
準備好為你的 Tundra 或 Sequoia AR4 後煞車改裝開出規格了嗎？
需要確認後煞車安裝適配性、檢視輪圈間隙，或是前後匹配的煞車套裝方案嗎？
保養指南
xBrake Kits · Fitment · Installation · Care Guide
Brake Kit 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.
1. Before Ordering: Confirm the Full Vehicle Setup
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.
- Vehicle year, make, model, trim, market version, and chassis code if available
- Front or rear axle position
- Current brake rotor diameter, thickness, and caliper type if known
- Wheel diameter, width, offset, spoke shape, and inner barrel clearance
- Tire size and vehicle weight changes from armor, cargo, towing equipment, or track setup
- Driving use: daily street, towing, mountain driving, off-road, HPDE, rally, drift, track, or competition
- Whether the vehicle uses electronic parking brake, brake pad wear sensors, ABS / ESC systems, or special hydraulic routing
Wheel Clearance & Data Disclaimer: Technical fitment data applies strictly to rotor hats and mounting brackets—not wheel geometry. Wheel compatibility specs are provided for general reference only. Insufficient wheel clearance is not covered under warranty or data accuracy claims; if clearance is insufficient, wheel spacers must be added at the customer's discretion.
2. Understand What Type of Brake Kit You Are Ordering
Different TTSPORT brake kit series use different hardware layouts. Always confirm what the kit includes before purchase.
Direct-Mount Kits
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.
Two-Piece Rotor Kits
Use separate friction rings and rotor hats. Hat offset, ring bolt pattern, hardware style, and rotor direction must be matched correctly.
Racing / Custom Kits
May require bespoke brackets, rotor hats, brake lines, and engineering confirmation based on knuckle, hub, wheel, and competition use.
Off-Road / Heavy Vehicle Kits
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.
3. Confirm the Kit Specification Before Payment
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.
- Confirm vehicle application and axle position
- Confirm caliper model, piston count, and caliper color if applicable
- Confirm rotor diameter, rotor thickness, rotor construction, and left / right direction if applicable
- Confirm brake pad compound and intended use
- Confirm brake hose fitting type and routing compatibility
- Confirm whether caliper brackets, rotor hats, mounting hardware, wear sensors, or brake fluid are included
- Confirm minimum wheel diameter and spoke clearance requirement
- Confirm lead time, shipping method, and final invoice details
If any part is not listed in the final order or product page, do not assume it is included.
4. Before Installation: Inspect the Complete Kit
Inspect every component before installation. Do not modify, grind, drill, stretch, force, or space brake kit components to make them fit.
- Check all received parts against the order confirmation
- Inspect calipers, rotors, brackets, hats, hoses, pads, and hardware for shipping damage
- Confirm left / right caliper and rotor orientation where applicable
- Confirm rotor size, pad shape, hose fittings, bracket layout, and hardware style before installation
- Clean all mounting faces before assembly
- Confirm torque values, bedding procedure, fluid type, and bleeding procedure before starting work
- Use a qualified brake technician for installation
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.
5. Installation Checks
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.
Caliper Position
Verify caliper centering over the rotor and confirm even pad sweep across the friction surface.
Rotor Orientation
Confirm left / right rotor direction if the rotor uses directional vanes or directional face pattern.
Brake Hose Routing
Check brake hose length and routing at full steering lock and full suspension travel. No twisting, rubbing, stretching, or kinking.
Wheel Clearance
Check caliper-to-spoke and caliper-to-barrel clearance before road use. Wheel specs are for general estimation only—clearance issues are excluded from warranty/data claims and may require user-supplied wheel spacers.
Brake Fluid & Bleeding
Use the correct brake fluid type and bleed the system until pedal feel is firm and consistent.
Hardware Security
Torque all brake hardware to the specified value. Do not reuse damaged, unknown, stretched, or corroded safety-critical fasteners.
6. Bedding and First Heat Cycle
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.
- Follow the bedding procedure supplied with the exact pad and rotor compound
- Use moderate heat first unless the supplied procedure requires otherwise
- Do not start with emergency stops on a fresh pad / rotor setup
- Avoid holding the brake pedal while stopped on very hot pads and rotors
- Allow the brakes to cool after bedding
- After the first heat cycle, inspect pad contact, rotor surface, hose routing, hardware security, and fluid leaks
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.
7. Initial Break-In Period
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.
- Avoid repeated emergency stops unless required for safety
- Avoid hard track use until bedding and inspection are complete
- Monitor pedal feel, vibration, noise, smell, and rotor surface appearance
- Recheck for fluid leaks after the first road test
- Recheck torque where the kit instructions require post-heat-cycle inspection
- Contact TTSPORT if brake feel changes suddenly after installation
8. Routine Care and Inspection
Brake kits need regular inspection, especially after track use, off-road use, towing, mountain driving, winter salt exposure, or any brake service.
- Inspect brake pads for uneven wear, taper, glazing, cracking, or backing-plate damage
- Inspect rotors for cracks, heavy scoring, hot spots, minimum thickness, and runout
- Inspect calipers for fluid seepage, piston movement, dust boot damage, and uneven pad retraction
- Inspect brake hoses for rubbing, cuts, swelling, leaks, and fitting corrosion
- Inspect brackets, rotor hats, and mounting hardware for cracks, fretting, corrosion, or loosening
- Check brake fluid level, color, service age, and boiling-point suitability for your driving use
- Clean brake dust from wheels and calipers regularly, especially after wet, salty, or track conditions
9. Care by Use Case
Daily Street
Inspect pads, rotors, fluid level, and hose condition during normal service intervals. Prioritize quiet operation, smooth pedal feel, and even wear.
Towing & Mountain Roads
Check pad thickness, rotor surface condition, and fluid condition more often. Long descents create sustained heat even without track use.
Off-Road
Inspect for mud, sand, stone impact, hose abrasion, dust boot damage, and caliper contamination after trail use.
Track / HPDE
Inspect pads, rotors, fluid, and hardware before and after every event. Track heat shortens service intervals.
Drift / Competition
Check rear brake temperature, hydraulic handbrake behavior, pad wear, rotor cracking, and hardware condition frequently.
Carbon Ceramic
Use only compatible pads and approved bedding procedures. Inspect rotor surface condition carefully and avoid incompatible friction materials.
10. Stop Driving If You Notice These Symptoms
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.
- Soft pedal, sinking pedal, or sudden increase in pedal travel
- Brake fluid leak or wetness near a line, caliper, fitting, or master cylinder
- Grinding, scraping, severe vibration, or heavy brake judder
- Vehicle pulling strongly to one side under braking
- Burning smell after light driving
- Loose wheel, rotor, caliper, bracket, or hardware noise
- Brake warning light, ABS warning light, or traction-control fault after brake work
Need help confirming brake kit setup or care?
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.
- 選擇結果將重新載入完整頁面。