描述
產品概述
SHIMANO FC-R7100 系列齒片是 105 R7100 12 速公路曲柄組的專用替換齒片。採用鋁合金陽極氧化處理，外片背面帶有 SHIMANO 105 特有的樹脂肋條結構，在有效降低重量的同時，顯著提升變速性能 。
主要特點
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Hyperglide+ 兼容：專為 HG 12 速鏈條開發，齒形經過優化，提供更快、更精確的前變速體驗 。
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樹脂肋條結構：外片背面的樹脂肋條是 105 系列的獨特設計，兼顧輕量化與剛性 。
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陽極氧化處理：鋁合金材質，黑色陽極氧化，耐用且美觀 。
技術規格
| 項目 | 規格 |
|---|---|
| 系列 | SHIMANO 105 R7100 |
| 齒盤類型 | 雙片 (2x) |
| 齒數組合 | 50-34T、52-36T |
| BCD | 110 mm（Shimano 非對稱） |
| 固定方式 | 4 臂 |
| 兼容鏈條 | HG 12 速 |
| Chainline | 44.5 mm |
| 材質 | 鋁合金（外片含玻璃纖維增強塑料肋條） |
參考重量
| 齒數 | 位置 | 重量 |
|---|---|---|
| 34T | 內片 | 約 35 g |
| 36T | 內片 | 約 36 g |
| 50T | 外片 | 約 159 g |
| 52T | 外片 | 約 177 g |
（重量數據來自第三方，僅供參考）
備註
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齒片需按正確齒數組合搭配使用（50/34T 或 52/36T），不可混搭 。
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外片與內片分開銷售，購買前請確認所需位置。
Product Overview
The SHIMANO FC-R7100 chainrings are replacement rings for the 105 R7100 12-speed road crankset. Made from anodized aluminium, the outer ring features SHIMANO 105’s unique resin rib structure on the back, achieving thorough weight reduction while significantly improving shifting performance .
Key Features
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Hyperglide+ Compatible: Developed for HG 12-speed chains, with an optimized tooth profile for faster, more precise front shifting .
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Resin Rib Structure: The resin ribs on the back of the outer ring are a 105-exclusive design, balancing lightweight and rigidity .
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Anodized Finish: Aluminium construction with black anodized finish for durability and aesthetics .
Technical Specifications
| Item | Specification |
|---|---|
| Series | SHIMANO 105 R7100 |
| Drivetrain | 2x Double |
| Chainring Combos | 50-34T, 52-36T |
| BCD | 110 mm (Shimano Asymmetric) |
| Mount | 4-Bolt |
| Compatible Chain | HG 12-speed |
| Chainline | 44.5 mm |
| Material | Aluminium (outer with GFRP ribs) |
Reference Weights
| Teeth | Position | Weight |
|---|---|---|
| 34T | Inner | Approx. 35 g |
| 36T | Inner | Approx. 36 g |
| 50T | Outer | Approx. 159 g |
| 52T | Outer | Approx. 177 g |
(Weight data from third-party source, for reference only)
Notes
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Chainrings must be paired in appropriate teeth configurations (50/34T or 52/36T); mixed pairing is not recommended .
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Outer and inner rings are sold separately; please confirm position before purchase.
商品評價
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