4 顆液壓活塞 + EPB 作動器
四顆 28 mm 液壓活塞推動煞車來令片，搭配一顆 27 mm EPB 作動活塞，保留原廠電子駐車煞車。
產品詳情
xEvolution 系列 · 後軸 · 支援 EPB 的 BBK
Evolution EP4S 後輪大煞車套件（附電子手煞車）
Evolution EP4S 是專為仍需電子手煞車的現代化車款平台所打造的後軸大煞車套件。四顆液壓工作活塞負責煞車制動，而專用的 EPB 作動活塞則保留原廠駐車煞車功能——讓您獲得真正的後軸熱容量，同時不必犧牲原廠便利性。
為什麼改裝玩家選擇 EP4S
兩片式鍛造鋁合金卡鉗本體
EP4S 卡鉗由兩片式鍛造鋁合金本體加工而成，兼具高剛性與輕量化，單顆卡鉗不含來令片重 4.50 kg。
後軸熱容量
兩片式碟盤總成搭配 CNC 加工鋁合金帽蓋，有效控制簧下與旋轉質量，同時提供性能後軸所需的熱容量。
對應鐵盤與 CCB 的來令片搭配
鐵盤搭配街道／賽道用來令片，耐溫 0–600 °C，平均 μ ≈ 0.38。碳陶碟盤則隨附 CCB 專用來令片，耐溫 0–700 °C，平均 μ ≈ 0.45。
技術規格與套件選項
| 煞車卡鉗 | ||
|---|---|---|
| 系列 | Evolution 系列 | |
| 型號 / 適用車型 | EP4S | |
| 安裝軸位 | 後軸 | |
| 活塞數量 | 4 顆液壓 + 1 顆 EPB 作動器 | |
| 活塞類型 | 兩片式隔熱、防塵套 + EPB 作動器 | |
| 活塞直徑 | 28 mm × 4 / 27 mm × 1 | |
| 活塞總面積 | 每個卡鉗 30.4 cm² | |
| 卡鉗尺寸 | 278 × 202 × 93 mm（長×寬×高） | |
| 製造製程 | 兩片式鍛造鋁合金本體 | |
| 淨重 | 每個卡鉗 4.50 kg（不含來令片） | |
| 表面處理 | 高溫亮面塗層 | |
| 建議輪圈尺寸 | 18 吋以上 | |
| 建議碟盤尺寸 | Ø345–380 mm × 28 mm | |
| 煞車碟盤選項 | ||
| 碟盤選項 | 鐵碟盤 | 碳陶瓷碟盤 |
| 碟盤材質 | 熱處理高碳鑄鐵 | 碳陶瓷複合材質 |
| 安裝軸位 | 後軸 | 後軸 |
| 碟盤尺寸 | Ø345 / 355 / 380 × 28 mm | Ø380 × 28 mm |
| 結構 | 兩片式，內通風 | 兩片式，內通風 |
| 碟盤固定方式 | 固定式或浮動式，依尺寸／車型應用而定 | 浮動式 |
| 方向性設計 | 有 — 左右專用 | 有 — 左右專用 |
| 碟盤表面紋路 | 弧形溝槽／細溝槽／波浪溝槽／鑽孔與溝槽 | 鑽孔通風 |
| 來令片選項 | ||
| 來令片選項 | 鑄鐵碟盤來令片 | CCB 碟盤來令片 |
| 相容碟盤材質 | 僅限鑄鐵碟盤 | 僅適用碳陶瓷碟盤 |
| 工作溫度範圍 | 0–600 °C | 0–700 °C |
| 平均摩擦係數 | 平均 μ ≈ 0.38 | 平均 μ ≈ 0.45 |
| 煞車油管 | ||
| 煞車油管結構 | 三層強化結構 | |
| 煞車油管材質 | PTFE 內管 / SUS304 不鏽鋼編織層 / PVC 外披覆 | |
| 煞車油管接頭 | 車型專用接頭 | |
| 支架 | ||
| 碟盤帽製程 | CNC 精密加工 | |
| 碟盤帽材質 | 高強度鋁合金 | |
| 卡鉗支架製程 | CNC 精密加工 | |
| 卡鉗支架材質 | 碳鋼 | |
| 卡鉗安裝型式 | 徑向安裝，搭配車型專用支架 | |
| 車型適配 & 安裝 | ||
| 最小輪輻間隙 | 97 mm | |
| 建議輪圈尺寸 | 18 吋以上 | |
| EPB 電子手煞車介面 | 車型專用；最終 EPB 介面規格依車型應用而異 | |
| 磨合（開皮）程序 | 激烈操駕前必須完成 | |
鑄鐵碟盤搭配街道／賽道兩用來令片，耐溫 0–600 °C，平均 μ ≈ 0.38。碳陶瓷碟盤則隨附 CCB 專用來令片，耐溫 0–700 °C，平均 μ ≈ 0.45——初段咬合力強勁，且隨踏板深度展現線性控制。
包裝清單
卡鉗 ×2
2× EP4S 四活塞後卡鉗，內建 EPB 電子手煞車馬達。
煞車來令片
兩側卡鉗皆隨附對應碟盤材質的高性能來令片。
煞車碟盤 ×2
2× 兩片式碟盤，採您所選的尺寸與碟面紋路。
卡鉗轉接座 ×2
CNC 碳鋼轉接座。
碟盤盤帽 ×2
CNC 鋁合金碟盤中心盤。
煞車油管 ×2
不鏽鋼金屬煞車油管，附車型專用接頭。
附安裝五金配件。
裝得下嗎？3 步驟檢查
本產品為依車型平台適配的後輪大煞車套件。最終卡鉗轉接座、煞車油管接頭、碟盤直徑與 EPB 電子手煞車介面規格會因車型而異，訂購前必須先行確認。
1. 輪圈直徑
需搭配 18 吋（含）以上輪圈。
2. 輪輻間隙
輪輻最小閃避間隙為 97 mm。購買前請確認輪圈偏移量與輪輻內部幾何。
3. 車型
轉接座、煞車油管接頭、碟盤尺寸與 EPB 介面均依各車型逐一確認。
請提供年份／廠牌／車型／等級與輪圈規格並與我們聯繫，以便在您下單前確認安裝相容性。
安裝與磨合
- 最終卡鉗轉接座、煞車油管接頭、碟盤直徑與 EPB 電子手煞車介面規格會因車型而異，訂購前必須先行確認。
- EP4S 在與您的車輛正確介接後，可保留原廠電子手煞車功能。
- 激烈操駕前必須先完成磨合（開皮）程序。
- 請依隨附程序操作，使來令片材質均勻附著於碟盤，並穩定摩擦係數。
常見問題
EP4S 能保留原廠電子手煞車嗎？
可以。此卡鉗除了四顆液壓工作活塞外，另配備專用的 EPB 致動活塞（27 mm），因此只要與您的車輛正確介接，即可保留原廠電子手煞車功能。
有哪些碟盤尺寸可選？
鑄鐵碟盤提供 Ø345、355 與 380 mm × 28 mm。另有 Ø380 × 28 mm 的碳陶瓷複合材質選項。全部皆為兩片式、內部通風結構，且具方向性（左／右專用）。
我需要什么尺寸的轮圈？
需為 18 吋以上輪圈，且輪輻最小間隙為 97 mm。即使是相同直徑，輪圈內部幾何也可能不同——訂購前請對照卡鉗外廓尺寸（278 × 202 × 93 mm）確認間隙。
這能直接安裝在我的車上嗎？
EP4S 是依車型平台適配的套件。卡鉗轉接座、煞車油管接頭、碟盤尺寸與 EPB 介面皆依各車型分別確認。請提供您的年份／廠牌／車型／等級與輪圈規格，我們可在您下單前先為您確認安裝相容性。
EP4S 如何提升煞車性能？
它以剛性更高的四活塞鍛造卡鉗與更大的兩片式通風碟盤，取代原廠較小的後卡鉗與碟盤。結果是熱容量更大、後軸制動貢獻更穩定，且在反覆重煞下踏板腳感更扎實。
套件隨附哪種來令片配方？
鑄鐵碟盤隨附 0–600 °C 街道／賽道來令片（平均 μ ≈ 0.38）。碳陶瓷碟盤則隨附專為 CCB 設計、額定 0–700 °C 的來令片（平均 μ ≈ 0.45）。兩者皆與碟盤材質匹配，絕不可混用。
準備好規劃您的 EP4S 配置了嗎？
需要確認安裝相容性、訂製碟盤盤面花紋，或搭配的前輪大煞車套件嗎？
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.
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