描述
SHIMANO 105 FD-R7100-B 前變速器（束環式 / 2×12 速）
承襲 DURA-ACE / ULTEGRA 技術，十二速入門公路首選。
SHIMANO 105 FD-R7100-B 採用 SHIMANO 肘節式連桿（Toggle Link）結構，搭配經優化的導鏈器設計，與碟煞公路車無縫兼容。束環式安裝對應 28.6mm、31.8mm 及 34.9mm 座管，提供更輕巧、順暢自然的前變速體驗。
為何選擇 FD-R7100-B？
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肘節式連桿結構：源自 DURA-ACE / ULTEGRA 的頂級設計，變速操作更輕巧
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整合式線纜張力調節：無需外加微調器，調整精準簡便
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多樣走線選項：支援外走線及內走線設計，兼容更多車架
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碟煞公路車優化：導鏈器設計與碟煞車架無縫兼容
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束環式安裝：對應 28.6mm（需 S 尺寸轉接座）、31.8mm、34.9mm 座管
適合哪些騎乘？
公路、鐵人三項、越野公路。
技術規格
| 項目 | 規格 |
|---|---|
| 型號 | FD-R7100-B |
| 系列 | SHIMANO 105 R7100 |
| 前變速別 | 2 速 |
| 後變速別 | 12 速 |
| 相容鏈條 | HG 12 速 |
| 作動方式 | 下擺式（Down Swing） |
| 走線類型 | 下走線（Down-Pull） |
| 安裝方式 | 束環式（Clamp Band） |
| 束環直徑 | 28.6mm（需 S 尺寸轉接座）/ 31.8mm / 34.9mm |
| Chain Line | 44.5mm |
| 後下叉角度 | 61-66° |
| 相容最大齒片 | 50-52T |
| 總齒包容量 | 16T |
| 角度束環設計 | 有 |
| 連桿軸襯 | 7 |
| 平均重量 | 約 111g |
兼容性
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變速把手：ST-R7120、ST-RX820、ST-RX610 等 12 速公路 / GRX 左手變把
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曲柄：FC-R9200、FC-R8100、FC-R7100、FC-RS520、FC-RX820-2、FC-RX610-2 等 12 速雙片曲柄
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鏈條：CN-M9100、CN-M8100、CN-M7100、CN-M6100 等 HG 12 速鏈條
備註
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28.6mm 座管需使用 S 尺寸轉接座。
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安裝需使用合適工具，建議由合資格技師安裝。
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購買前請確認車架座管直徑及後下叉角度。
SHIMANO 105 FD-R7100-B FRONT DERAILLEUR (Clamp Band / 2×12-Speed)
DURA-ACE / ULTEGRA technology trickled down, the 12-speed entry point for road.
The SHIMANO 105 FD-R7100-B features SHIMANO’s Toggle Link construction with an optimized cage design, seamlessly compatible with disc brake road bikes. The clamp band mount fits 28.6mm, 31.8mm and 34.9mm seat tubes, delivering lighter, smooth and natural front shifting.
Why FD-R7100-B?
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Toggle Link Construction: Derived from DURA-ACE / ULTEGRA for lighter shifting operation
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Integrated Cable Tension Adjustment: No inline barrel adjuster needed, precise and easy adjustment
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Multiple Routing Options: Supports bare cable and integrated cable housing stop
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Disc Brake Road Optimized: Cage design seamlessly compatible with disc brake frames
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Clamp Band Mount: Fits 28.6mm (with S-size adapter), 31.8mm and 34.9mm seat tubes
Ideal For
Road, triathlon, cyclocross.
Technical Specifications
| Item | Specification |
|---|---|
| Model | FD-R7100-B |
| Series | SHIMANO 105 R7100 |
| Front Speeds | 2 |
| Rear Speeds | 12 |
| Compatible Chain | HG 12-speed |
| Action | Down Swing |
| Cable Route Type | Down-Pull |
| Mount Type | Clamp Band |
| Clamp Diameter | 28.6mm (with S-size adapter) / 31.8mm / 34.9mm |
| Chain Line | 44.5mm |
| Chainstay Angle | 61-66° |
| Max Chainring | 50-52T |
| Total Capacity | 16T |
| Angled Clamp Band Design | Yes |
| Link Bushings | 7 |
| Average Weight | Approx. 111g |
Compatibility
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Shifters: ST-R7120, ST-RX820, ST-RX610 and other 12-speed road / GRX left shifters
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Cranks: FC-R9200, FC-R8100, FC-R7100, FC-RS520, FC-RX820-2, FC-RX610-2 and other 12-speed double cranks
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Chain: CN-M9100, CN-M8100, CN-M7100, CN-M6100 and other HG 12-speed chains
Notes
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28.6mm seat tubes require the S-size adapter.
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Professional installation recommended; requires appropriate tools.
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Please verify seat tube diameter and chainstay angle before purchase.
商品評價
目前沒有評價。