描述
Rotor BB1 五通軸承（適用於 ITA/BSA68）
通用五通方案，告別兼容性煩惱。
Rotor BB1 五通是 ROTOR 通用五通（UBB）概念的結晶，專為解決傳統螺紋式五通與不同曲柄之間的兼容性問題而設。無論你的車架是意大利牙（ITA）還是英制牙（BSA 68），只要曲柄是 24mm 軸心，BB1 就是那個「是，可以用」的答案。
為何選擇 Rotor BB1？
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Universal BB 概念：ROTOR 原廠設計，消除五通與曲柄的兼容性困擾
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非接觸式迷宮密封：極致順暢的同時，提供防塵、防水、防泥沙的優異保護
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7075 鋁合金軸承杯：100% CNC 加工，陽極氧化處理，剛性與耐用兼備
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改良塑料蓋設計：顯著提升抗側向壓縮及抗變形能力
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Cervélo 測試車隊合作開發：源於 2009 賽季的實戰驗證
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西班牙製造：ROTOR 原廠工藝
適合哪些騎乘？
公路、三鐵、越野公路、礫石騎乘。
版本選擇
| 版本 | 五通規格 | 軸承材質 | 重量 |
|---|---|---|---|
| BB1 Road ITA | ITA（意大利牙） | 鋼 | 約 91g |
| BB1 Road BSA | BSA（英制牙 68mm） | 鋼 | 約 93g |
| BB1 Road BSA | BSA（英制牙 68mm） | 陶瓷 | 約 91g |
| BB1 MTB BSA | BSA（英制牙 68/73mm） | 鋼 | 約 100g |
| BB1 MTB BSA | BSA（英制牙 68/73mm） | 陶瓷 | 約 97g |
技術規格
| 項目 | 規格 |
|---|---|
| 型號 | BB1 |
| 五通標準 | ITA / BSA（螺紋式） |
| 五通殼寬度 | 68mm（BSA Road）/ 68-73mm（BSA MTB）/ 70mm（ITA） |
| 軸心直徑 | 24mm |
| 軸承杯材質 | 7075 鋁合金，100% CNC 加工 |
| 密封類型 | 非接觸式迷宮密封 |
| 產地 | 西班牙 |
兼容性
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曲柄：ROTOR（BB24 標準）、Shimano Hollowtech II、FSA MegaExo、Race Face X-Type 等 24mm 軸心曲柄
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車架：BSA 英制螺紋（1.37” x 24 TPI）或 ITA 意大利螺紋（36mm x 24 TPI）五通殼
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不兼容：壓入式（Press-Fit）車架；非 24mm 軸心曲柄
備註
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此為螺紋式五通，不適用於 PF30、BBRight、BB386 等壓入式標準。
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安裝需使用專用工具，建議由合資格技師安裝。
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購買前請確認車架五通殼的螺紋規格及寬度。
Rotor BB1 Bottom Bracket (BB) Bearings for ITA/BSA68
Universal Bottom Bracket Solution, No More Compatibility Headaches.
The Rotor BB1 is the product of ROTOR’s Universal Bottom Bracket (UBB) concept, designed to eliminate compatibility issues between traditional threaded bottom brackets and different cranks. Whether your frame is Italian-threaded (ITA) or English-threaded (BSA 68), as long as your crank uses a 24mm axle, the BB1 is the “yes” answer.
Why Rotor BB1?
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Universal BB Concept: ROTOR’s original design eliminating bottom bracket/crank compatibility frustrations
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Non-Contact Labyrinth Seals: Exceptional smoothness with superior protection against dust, water and mud
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7075 Aluminium Cups: 100% CNC-machined, anodised, balancing stiffness and durability
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Improved Plastic Cover Design: Significantly enhanced lateral compression and deformation resistance
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Developed with Cervélo Test Team: Proven in the 2009 racing season
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Made in Spain: Authentic ROTOR craftsmanship
Ideal For
Road, triathlon, cyclocross, gravel riding.
Version Options
| Version | BB Standard | Bearing Material | Weight |
|---|---|---|---|
| BB1 Road ITA | ITA (Italian Thread) | Steel | Approx. 91g |
| BB1 Road BSA | BSA (68mm) | Steel | Approx. 93g |
| BB1 Road BSA | BSA (68mm) | Ceramic | Approx. 91g |
| BB1 MTB BSA | BSA (68/73mm) | Steel | Approx. 100g |
| BB1 MTB BSA | BSA (68/73mm) | Ceramic | Approx. 97g |
Technical Specifications
| Item | Specification |
|---|---|
| Model | BB1 |
| BB Standard | ITA / BSA (Threaded) |
| Shell Width | 68mm (BSA Road) / 68-73mm (BSA MTB) / 70mm (ITA) |
| Axle Diameter | 24mm |
| Cup Material | 7075 Aluminium, 100% CNC-machined |
| Seal Type | Non-Contact Labyrinth Seals |
| Origin | Spain |
Compatibility
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Cranks: ROTOR (BB24 standard), Shimano Hollowtech II, FSA MegaExo, Race Face X-Type and other 24mm axle cranks
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Frames: BSA threaded (1.37” x 24 TPI) or ITA threaded (36mm x 24 TPI) bottom bracket shells
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Not compatible: Press-Fit frames; non-24mm axle cranks
Notes
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This is a threaded bottom bracket, not suitable for PF30, BBRight, BB386 or other press-fit standards.
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Professional installation recommended; requires specific tools.
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Please verify your frame’s thread standard and shell width before purchase.
商品評價
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