描述
ROTOR PF4624 BBright 五通（鋼軸承）
專為 Cervélo 及 BBright 車架而設。
ROTOR PF4624 BBright 五通採用非對稱壓入式設計，非驅動側軸承向外偏移 11mm，填補多餘空間並提供更佳軸心支撐，同時不影響踏板間距。無論是 Cervélo 還是 Open 車架，這個「是的，可以用」的組件，正是你需要的答案。
為何選擇 PF4624 BBright？
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專為 BBright 標準而設：非對稱設計，完美對應 Cervélo 及 Open 等 BBright 車架
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7075 鋁合金軸承杯：100% CNC 精密加工，確保軸承精準對位，減少異響，延長軸承壽命
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鋼軸承：耐用可靠，順暢踩踏
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矽膠密封及中管：有效阻隔塵土、水份及泥沙
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西班牙製造：ROTOR 原廠工藝
適合哪些車架？
配備 BBright 五通標準的車架（五通殼直徑 46mm，寬度 79mm），尤其適合 Cervélo 及 Open 車架。
技術規格
| 項目 | 規格 |
|---|---|
| 五通標準 | BBright（壓入式） |
| 五通殼直徑 | 46mm |
| 五通殼寬度 | 79mm |
| 軸心直徑 | 24mm |
| 軸承材質 | 鋼 |
| 軸承杯材質 | 7075 鋁合金，100% CNC 加工 |
| 密封 | 矽膠密封及中管 |
| 重量 | 約 131g（鋼版本） |
| 產地 | 西班牙 |
兼容性
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曲柄：ROTOR、Shimano 24mm 軸心曲柄（包括 Shimano Hollowtech II：Dura-Ace、Ultegra、105、Tiagra、Sora；ROTOR Vegast 24、Aldhu 24 等）
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車架：BBright 標準車架（46mm 五通殼直徑，79mm 寬度）
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不兼容：非 BBright 標準車架；非 24mm 軸心曲柄
備註
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此為 BBright 專用五通，不適用於 PF30、BB386 等其他壓入式標準。
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安裝需使用壓入工具，建議由合資格技師安裝。
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部分車架可能需要適配器，購買前請確認五通殼尺寸。
ROTOR PF4624 BBright Bottom Bracket (Steel)
Designed for Cervélo and BBright frames.
The ROTOR PF4624 BBright bottom bracket uses an asymmetric press-fit design, with the non-drive-side bearing shifted outward by 11mm to fill dead space and provide better axle support without affecting pedal stance width. Whether it‘s a Cervélo or an Open frame, this is the “yes” component you need.
Why PF4624 BBright?
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BBright-Specific Design: Asymmetric design perfectly matched to Cervélo, Open and other BBright frames
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7075 Aluminium Cups: 100% CNC-machined for precise bearing alignment, reduced creaking and extended bearing life
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Steel Bearings: Durable and reliable for smooth pedalling
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Silicone Seals & Center Sleeve: Effective protection against dust, water and mud
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Made in Spain: Authentic ROTOR craftsmanship
Ideal For
Frames with the BBright bottom bracket standard (46mm shell diameter, 79mm width), particularly Cervélo and Open frames.
Technical Specifications
| Item | Specification |
|---|---|
| BB Standard | BBright (Press-Fit) |
| Shell Diameter | 46mm |
| Shell Width | 79mm |
| Axle Diameter | 24mm |
| Bearing Material | Steel |
| Cup Material | 7075 Aluminium, 100% CNC-machined |
| Seals | Silicone seals and center sleeve |
| Weight | Approx. 131g (Steel version) |
| Origin | Spain |
Compatibility
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Cranks: ROTOR, Shimano 24mm axle cranks (including Shimano Hollowtech II: Dura-Ace, Ultegra, 105, Tiagra, Sora; ROTOR Vegast 24, Aldhu 24, etc.)
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Frames: BBright standard frames (46mm shell diameter, 79mm width)
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Not compatible: Non-BBright frames; non-24mm axle cranks
Notes
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This is a BBright-specific bottom bracket, not suitable for PF30, BB386 or other press-fit standards.
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Installation requires a press tool; professional installation recommended.
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Some frames may require adapters; please verify shell dimensions before purchase.
