後軸獨立輸入
專用 4 活塞液壓卡鉗，負責腳煞調節、循跡煞車與後軸煞車偏壓控制。
產品詳情
xRacing 系列 · 甩尾 · 後軸 · 雙 4 活塞
DR4+4 後雙卡鉗甩尾大煞車套件
後軸每側配置兩具卡鉗，各司其職。DR4+4 將手煞車輸入與腳煞車輸入在後軸分離為獨立的液壓與機械迴路，因此拉起手煞車時，壓力絕不會回流至腳煞車油路，也不會在車輛旋轉過程中改變後煞車配比。
競技系列 — 甩尾
後軸
雙 4 活塞配置
每側 8 活塞
Ø325 mm × 12 mm 實心碟盤
最小 17 吋輪圈
賽車運動專用
為什麼改裝玩家選擇 DR4+4
在競技甩尾中，手煞車是轉向輸入，而不是駐車裝置。當單一後卡鉗必須同時負責手煞車機構與液壓腳煞迴路時，用力拉手煞車會把油液推回總泵，使踏板手感變軟，並在車手正準備以循跡煞車帶動車輛旋轉的瞬間讓車身失去穩定。DR4+4 的解法，是讓每種輸入各自擁有專用卡鉗。
專用手煞車鎖定
專用 4 活塞機械卡鉗負責手煞車鎖定與釋放，與液壓腳煞迴路完全隔離。
迴路隔離
用力拉手煞車不會回饋到腳煞油路。在入彎、轉換與出彎過程中，踏板壓力、偏壓與調節保持一致。
共用碟盤配置
共用 Ø325 mm × 12 mm 兩件式實心碟盤，每個後輪角僅需一組熱質量，兼顧緊湊配置與穩定一致的作動表現。
熱重複性
經熱處理的高碳鐵碟盤搭配 0–600 °C 來令片工作範圍，在連續單圈與雙車追逐戰中提供一致的 μ。
車款專屬工程設計
徑向轉接座、油管接頭、碟盤偏距與輪圈間隙，均依你的車型底盤、轉向節、輪轂與輪圈配置製作。
技術規格與套件選項
| 煞車卡鉗 | ||
|---|---|---|
| 系列 | 競技系列 — 甩尾 | |
| 型號 / 適用車型 | DR4+4 | |
| 安裝軸位 | 後軸 | |
| 卡鉗配置 | 雙卡鉗後煞配置：每個後輪角一顆 4 活塞液壓卡鉗 + 一顆 4 活塞機械手煞車卡鉗 | |
| 活塞數量 | 每個後輪角 4 個手煞車活塞 + 4 個液壓活塞 | |
| 活塞類型 | 賽車活塞，無防塵套 | |
| 活塞直徑 | 35 mm | |
| 卡鉗尺寸 | 長 178 mm × 寬 82 mm × 高 106.5 mm | |
| 活塞總面積 | 每個後輪 38.46 cm² × 2 | |
| 製造製程 | 兩片式鍛造鋁合金本體 | |
| 淨重 | 每個卡鉗 1.41 kg（不含煞車皮） | |
| 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 | Ø325 mm × 12 mm | |
| 煞車碟盤 | ||
| 碟盤材質 | 熱處理高碳鑄鐵 | |
| 安裝軸位 | 後軸 | |
| 碟盤尺寸 | Ø325 mm × 12 mm | |
| 結構 | 兩片式碟盤組 | |
| 通風設計 | 實心 | |
| 安裝方式 | 固定式 | |
| 碟盤中心盤 | CNC 加工高強度鋁合金碟盤中心盤 | |
| 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 | μ ≈ 0.38，隨溫度、管路壓力與碟盤狀態而變化 | |
| 磨合（開皮） | 競賽使用前必須執行 | |
| 油管、支架與保養 | ||
| 煞車油管結構 | 三層強化結構 | |
| 煞車油管材質 | PTFE 內層管 / SUS304 不鏽鋼編織層 / PVC 外披覆 | |
| 卡鉗安裝孔距 | 徑向安裝，搭配車型專用卡鉗支架 | |
| 卡鉗轉接座 | CNC 加工碳鋼徑向安裝卡鉗支架 | |
| 煞車油管接頭 | 車型專用；卡鉗端與車身端接頭依對應車型而異 | |
| 迴路配置 | 後軸具備獨立的液壓腳煞車迴路與機械手煞車迴路 | |
| 輪圈淨空 | 需搭配 17 吋以上輪圈；由於雙卡鉗配置比單卡鉗後煞車系統占用更多徑向與軸向空間，最終仍須確認輪輻與輪圈內徑的間隙 | |
| 維修保養項目 | 煞車皮、油封與不鏽鋼金屬煞車油管皆為可更換的維修保養項目 | |
DR4+4 屬於 Racing Series — Drift 平台，並非通用直上套件。生產前必須針對您的特定底盤、轉向節、輪轂與輪圈配置，確認最終的卡鉗座幾何、煞車油管接頭、碟盤偏移量與輪圈間隙。
包裝清單
卡鉗 ×4
2 個後輪 4 活塞液壓卡鉗與 2 個後輪 4 活塞機械手煞車卡鉗，每個後輪配置兩個卡鉗。
煞車來令片
後輪雙卡鉗套件專用煞車皮，耐溫範圍 0–600 °C，適用於鑄鐵／鋼製碟盤。
煞車碟盤 ×2
2 片後輪兩片式實心碟盤，Ø325 mm × 12 mm，弧線溝槽盤面，分左右專用。
卡鉗座套件 ×2
專車專用 CNC 加工碳鋼輻射式卡鉗座套件，對應後輪雙卡鉗配置。
碟盤盤帽 ×2
CNC 加工高強度鋁合金碟盤中心盤，匹配後輪轂幾何與碟盤偏移量。
煞車油管
專車專用不鏽鋼金屬後煞車油管，內層為 PTFE 襯管，外層採 SUS304 不鏽鋼編織與 PVC 披覆。
客製化工程流程
每一套 DR4+4 後輪甩尾系統，皆以車輛的後羊角、輪轂位置、碟盤帽偏移量、輪圈內徑、輪輻間隙、手煞車液壓配置、機械式手煞車安裝空間、煞車油管走線、後軸煞車力分配目標，以及預期的甩尾用途為核心進行設計。我們的目標並非通用的萬用適配，而是打造一套能將手煞車輸入與腳煞車輸入完全隔離的後煞車套件，讓駕駛在進入彎道、轉換與雙車追走時，都能獲得可重複的後輪鎖定、踏板反應與細膩調控。
1. 技術諮詢
我們會檢視底盤、後懸吊與羊角配置、輪轂總成、輪圈配置、手煞車配置、目標後煞車特性、雙車追走或競技用途、輪胎配置，以及車輛採用原廠或訂製後輪仰角。
2. 資料提交
若為原廠羊角，請提供底盤、年份、羊角、輪轂、輪圈直徑、輪圈寬度、偏移值、輪輻輪廓及手煞車配置等詳細資訊。若為訂製後輪仰角，請提供 CAD 檔案、技術圖面、輪轂面數據、碟盤安裝尺寸，或精確的卡鉗轉接座安裝點測量數據。
3. 工程審查與核准
TTSPORT 會在開始生產前，確認雙卡鉗轉接座幾何、碟盤帽偏移量、煞車油管接頭、機械式手煞車安裝空間、輪圈間隙、來令片選擇、磨合要求及安裝注意事項。
如果您不確定您的輪圈、後羊角、碟盤偏移量、手煞車配置或煞車油管走線是否合適， 請聯絡我們 再下單，讓工程團隊檢視您的車輛配置細節。
安裝與磨合
- 本系統專為競技甩尾、賽道及封閉場地使用而設計。
- 後軸每側採用兩組獨立卡鉗：一組專用 4 活塞液壓卡鉗負責腳煞車輸入，另一組專用 4 活塞機械卡鉗負責手煞車輸入。
- 卡鉗轉接座採徑向安裝，並依您的特定轉向節、輪轂與碟盤偏移量進行精密加工。
- 卡鉗側與車身側的煞車油管接頭皆為車型專用規格。
- 由於雙卡鉗配置比單卡鉗後煞車系統佔用更多徑向與軸向空間，量產前必須以您實際的輪圈確認最終輪輻與輪圈內徑間隙。
- 來令片必須先完成磨合程序，才能進行激烈操駕。
- 競技活塞不使用防塵套，需定期檢查油封。
- 來令片、油封與不鏽鋼金屬編織油管皆為可更換的耗材，適用於耐久賽與競技甩尾賽事。
賽車運動專用。 本系統專為競技甩尾、賽道及封閉場地使用而設計。來令片必須先完成磨合程序，才能進行激烈操駕。競技活塞不使用防塵套，需定期檢查油封。
常見問題
DR4+4 與標準後輪 BBK 有何不同？
後軸每側使用兩組獨立卡鉗：一組專用 4 活塞液壓卡鉗負責腳煞車制動，另一組專用 4 活塞機械卡鉗負責手煞車制動。兩套迴路彼此隔離，因此用力拉起手煞車時，壓力不會回流至腳煞車迴路，也不會在彎中擾亂後煞車偏壓。
這套套件需要多大的碟盤尺寸與輪圈間隙？
DR4+4 是依照 Ø325 mm × 12 mm 雙片式碟盤設計，並需要 17 吋或更大的輪圈。由於雙卡鉗配置比單卡鉗後煞車系統佔用更多徑向與軸向空間，生產前必須以你實際的輪圈確認最終輪輻與輪圈桶身間隙。
這是可直接對鎖直上的套件嗎？
不。這屬於 Racing Series — 甩尾平台。卡鉗轉接座為徑向安裝，並依你的特定羊角、輪轂與碟盤偏移量加工。卡鉗端與車體端的煞車油管接頭也依車型專用。請提供你的車台、羊角、輪轂與輪圈細節，讓 TTSPORT 在製造前確認安裝適配性。
我應該預期什麼樣的來令片工作溫度範圍與摩擦等級？
隨附來令片的額定工作溫度為 0–600 °C，平均摩擦係數為 μ ≈ 0.38。實際 μ 會隨碟盤溫度、管路壓力與碟盤狀態而變化。競技使用前必須進行正確的磨合程序。
這套套件可以客製化配置訂購嗎？
是的。針對非標準碟盤偏移量、卡鉗座幾何、油管走線或表面處理，我們提供客製化建置報價。請將您的改裝規格表提供給工程團隊，TTSPORT 將為您提供客製化配置報價。
卡鉗與五金件可維修保養嗎？
是的。卡鉗採用兩件式鍛造鋁合金本體，搭配賽用活塞，無防塵套，方便在賽事之間進行油封保養。來令片、油封與不鏽鋼編織煞車油管皆為可更換的保養項目，這對耐久賽與競技甩尾賽事至關重要。
指定您的 DR4+4 規格
請將您的車體、羊角、輪轂、輪圈規格、手煞車配置與後懸吊設定提供給 TTSPORT，以進行安裝確認與客製化報價。
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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