Overfast

OVERFAST Specialized SL9 碳纖貫通軸－超輕公路碟煞軸 | 950kgf 強度

$310.00 SGD

特價售罄

結帳時計算運費。

Compatibility Specialized Tarmac SL9（預購）

29±1g | 專利碳纖維–合金接合 | >950kgf 抗拉強度

超輕量碳纖維貫通軸，搭配鋁合金螺紋端與鈦合金嵌件，專為現代碟煞公路車設計。

✔ 顯著減重
✔ 通過 EN 與 UCI 測試
✔ 2024 更新版本
✔ 全球免費配送

其他車款適用的 Overfast 貫通軸，請點此查看。

Specialized Tarmac SL8／SL7／Venge／Crux／Aethos 適用版本：點此查看

工程設計亮點

專利碳纖維–合金接合介面

碳纖維軸身與鋁合金螺紋端之間的關鍵承載介面採用專利機械接合結構，可防止零件在扭力與拉伸負載下分離。Overfast 亦以航太級膠材進一步黏合兩者，提升可靠度。

鈦合金嵌件

六角工具孔採用鈦合金補強，僅增加 1g，卻能顯著提升螺紋耐用度與長期可靠性。

減重效益

依車款而異，相較許多原廠貫通軸可減重約 100g。

強度與安全測試

每款設計均通過破壞性與非破壞性測試，包括：

搭配輪組的疲勞測試（EN 標準）
搭配輪組的衝擊測試（UCI 標準）
最大扭力測試（19Nm）
抗拉強度測試（>950kgf）
側向壓縮測試（100–200kg）
X 光結構檢測
碳纖維端蓋衝擊與疲勞測試（20J 衝擊、12Nm 重複扭力）
超過 1 年的運動員實際使用測試
QC 檢驗時依規定扭力鎖緊螺紋，確保安全與正確安裝。

如需深入了解工程設計，請參閱：每對 27g：OVERFAST 如何打造全球最輕貫通軸

組裝資訊

請勿使用 RSP 組裝膏，否則可能造成螺紋咬死。
因 QC 扭力測試，螺紋上可能會看到輕微痕跡；請放心，所有軸心皆為全新品。此步驟是保障產品安全的重要程序。
鎖緊／拆卸前，請確保工具頭至少插入貫通軸 15mm。
安裝時請使用扭力扳手。建議扭力：7–9Nm
先以手轉方式初步鎖入，確認貫通軸與車架螺紋正確對齊，避免螺紋滑牙。
Overfast 採用較緊密的螺紋公差，因此安裝手感會比原廠軸心更緊。

Warranty Information

Warranty Coverage

All Overfast products are covered by a 2-year warranty against manufacturing defects. This warranty does not cover damage caused by misuse, accidents, crashes, improper installation, modification, or normal wear and tear.

Warranty Claims

To process a warranty claim, customers must provide clear photos and/or videos showing the issue. Once the claim has been reviewed and confirmed by Overfast, replacement parts will be arranged as quickly as possible.

Thru-Axles

For defective thru axles, please provide clear photos or videos of the affected product. Once the defect has been verified, a replacement will be shipped promptly.

Cranksets

If a crank arm suffers a confirmed manufacturing defect (non-user-related), please provide detailed photos and a description of the issue.

After approval:

- The defective crank arm must be permanently destroyed (for example, by drilling a hole through it).
- Evidence of destruction must be submitted.
- If only one crank arm is defective, only the affected side will be replaced.

Once the above requirements are met, the replacement will be arranged immediately.

Wheelsets

Warranty service for wheelsets depends on the specific component that has failed. After inspection, Overfast will provide the appropriate replacement part or component based on the confirmed issue.

Other Products

The same warranty process applies to all other Overfast products. As long as sufficient evidence is provided to verify a manufacturing defect, warranty claims will be prioritised and processed promptly.

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Crash Replacement Programme

For products damaged due to crashes, accidents, or other user-related incidents, Overfast offers a Crash Replacement Programme.

Eligible customers may purchase a replacement product at 30% off the recommended retail price (70% of MSRP).

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Notes

- All warranty claims are subject to inspection and approval by Overfast.
- Clear photos, videos, and any other requested documentation may be required before a claim can be approved.
- Overfast reserves the right to determine whether a claim qualifies under the warranty or the Crash Replacement Programme.