描述
# SHIMANO DEORE XT FD-M8020-H 前變速器（高夾環式）
**SIDE SWING 側擺技術，為現代林道車而設。**
SHIMANO DEORE XT FD-M8020-H 採用源自 XTR M9000 的 SIDE SWING 側擺技術，鏈條沿鏈條路徑方向水平移動，帶來直接、低摩擦且高效的前變速表現。前拉式走線大幅降低操作力度，同時提供 15mm 額外輪胎間隙，兼容更短後下叉的現代車架。
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## 為何選擇 FD-M8020-H？
– **SIDE SWING 側擺技術**：鏈條水平移動，變速直接、低摩擦、高效
– **前拉式走線**：走線從前方進入，操作力度大幅降低
– **15mm 額外輪胎間隙**：兼容大輪徑及寬輪胎
– **兼容短後下叉車架**：適合現代林道車及全避震車種
– **向外變速力度提升 50%**：升檔動作更俐落
– **高夾環式安裝**：專為需要 H 型高夾環的車架而設
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## 適合哪些騎乘？
登山車、林道、越野、全避震車種。
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## 技術規格
| 項目 | 規格 |
|—|—|
| 型號 | FD-M8020-H |
| 系列 | SHIMANO DEORE XT M8000 |
| 前變速別 | 2 速 |
| 後變速別 | 11 速 |
| 相容鏈條 | HG-X 11 速 |
| 走線類型 | 前拉式（Front Pull） |
| 擺動方式 | SIDE SWING 側擺式 |
| Chain Line | 48.8mm |
| 後下叉角度 | 66-69° |
| 相容最大齒片 | 34-38T |
| 總齒包容量 | 10T |
| 安裝類型 | 高夾環式（High Clamp） |
| 夾環直徑 | 34.9mm（28.6mm / 31.8mm 需轉接座） |
| 重量 | 約 143g |
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## 兼容性
– **變速把手**：SL-M9000、SL-M8000、SL-M7000、SL-M5100
– **曲柄**：FC-M9000-2、FC-M9020-2、FC-M8000-2、FC-M7000-2、FC-M5100-2、FC-MT700-2、FC-MT600-2（B2 版本僅限 Direct Mount 及 E-Type）
– **鏈條**：CN-HG901-11、CN-HG701-11、CN-HG601-11、CN-LG500
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## 備註
– 由於前拉式走線，變速線必須沿下管內側或上方走線。
– 28.6mm 及 31.8mm 夾環直徑需使用轉接座（視版本而定）。
– 安裝需使用合適工具，建議由合資格技師安裝。
– 購買前請確認車架安裝類型（高夾環 / 低夾環 / Direct Mount / E-Type）及後下叉角度。
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# SHIMANO DEORE XT FD-M8020-H FRONT DERAILLEUR (High Clamp)
**SIDE SWING Technology, Built for Modern Trail Bikes.**
The SHIMANO DEORE XT FD-M8020-H features SIDE SWING technology derived from XTR M9000. The chain moves horizontally along the chain path, delivering direct, low-friction and efficient front shifting. The front-pull cable routing significantly reduces shifting effort, while providing 15mm of additional tire clearance, compatible with modern frames featuring shorter chainstays.
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## Why FD-M8020-H?
– **SIDE SWING Technology**: Horizontal chain movement for direct, low-friction, efficient shifting
– **Front-Pull Cable Routing**: Cable enters from the front for significantly reduced shifting effort
– **15mm Additional Tire Clearance**: Compatible with large wheels and wide tires
– **Short Chainstay Compatible**: Ideal for modern trail and full-suspension bikes
– **50% More Powerful Outward Shifting**: Crisper upshifts
– **High Clamp Mount**: Specifically for frames requiring H-type high clamp
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## Ideal For
Mountain biking, trail riding, off-road, full-suspension bikes.
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## Technical Specifications
| Item | Specification |
|—|—|
| Model | FD-M8020-H |
| Series | SHIMANO DEORE XT M8000 |
| Front Speeds | 2 |
| Rear Speeds | 11 |
| Compatible Chain | HG-X 11-speed |
| Cable Route Type | Front Pull |
| Swing Action | SIDE SWING |
| Chain Line | 48.8mm |
| Chainstay Angle | 66-69° |
| Max Chainring | 34-38T |
| Total Capacity | 10T |
| Mount Type | High Clamp |
| Clamp Diameter | 34.9mm (28.6mm / 31.8mm with adapter) |
| Weight | Approx. 143g |
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## Compatibility
– **Shifters**: SL-M9000, SL-M8000, SL-M7000, SL-M5100
– **Cranks**: FC-M9000-2, FC-M9020-2, FC-M8000-2, FC-M7000-2, FC-M5100-2, FC-MT700-2, FC-MT600-2 (B2 versions Direct Mount and E-Type only)
– **Chain**: CN-HG901-11, CN-HG701-11, CN-HG601-11, CN-LG500
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## Notes
– Due to the front-pull routing, the shift cable must be routed inside or above the down tube.
– 28.6mm and 31.8mm clamp diameters require adapters (depending on version).
– Professional installation recommended; requires appropriate tools.
– Please verify frame mount type (High Clamp / Low Clamp / Direct Mount / E-Type) and chainstay angle before purchase.
