SHIMANO BB-MT801 BOTTOM BRACKET BSA 68/73mm

描述

# SHIMANO BB-MT801 五通（BSA 68/73mm）

**DEORE XT 級壓入式五通，順暢耐用。**
SHIMANO BB-MT801 五通屬 DEORE XT 系列，採用高品質密封軸承，有效延長使用壽命。重量僅約 84g，為登山車提供輕量而可靠的踩踏傳動表現。

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## 為何選擇 BB-MT801？

– **DEORE XT 系列**：承襲 XTR 技術下放，軸承阻力更低，踩踏更順暢
– **密封軸承**：有效阻隔泥沙與水份，延長使用壽命
– **BSA 螺紋設計**：安裝穩固，兼容 68mm 及 73mm 五通殼寬度
– **輕量化**：僅約 84g
– **Hollowtech II 兼容**：專為 SHIMANO 24mm 軸心曲柄設計

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## 適合哪些騎乘？

登山車、越野、林道及全地形騎乘。

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## 技術規格

| 項目 | 規格 |
|—|—|
| 型號 | BB-MT801 |
| 系列 | DEORE XT |
| 五通標準 | BSA 螺紋式 |
| 五通殼寬度 | 68mm / 73mm |
| 軸心直徑 | 24mm（Hollowtech II） |
| 軸承類型 | 密封軸承 |
| 材質 | 鋁合金 |
| 重量 | 約 84g |
| 產地 | — |

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## 兼容性

– **曲柄**：SHIMANO Hollowtech II 登山車曲柄（24mm 軸心），包括：
– XT FC-M8100 / FC-M8120 / FC-M8130 / FC-M8000 / FC-T8000
– SLX FC-M7100 / FC-M7120 / FC-M7130 / FC-M7000
– FC-MT700 / FC-MT610 / FC-MT600
– **車架**：BSA 螺紋式五通殼（直徑 34.8mm），寬度 68mm 或 73mm
– **安裝工具**：TL-FC25 軸承杯適配器（需另購）；使用衝擊扳手時需搭配 TL-FC37

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## 備註

– 隨附墊片（Spacer），安裝時請依五通殼寬度選用。
– 安裝需使用專用工具，建議由合資格技師安裝。
– 此為 BSA 螺紋式五通，不適用於壓入式（Press-Fit）車架。

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# SHIMANO BB-MT801 BOTTOM BRACKET BSA 68/73mm

**DEORE XT-Grade Threaded Bottom Bracket, Smooth and Durable.**
The SHIMANO BB-MT801 bottom bracket belongs to the DEORE XT series, featuring high-quality sealed bearings for extended service life. Weighing only approximately 84g, it delivers lightweight yet reliable drivetrain performance for mountain bikes.

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## Why BB-MT801?

– **DEORE XT Series**: Trickle-down XTR technology for lower bearing drag and smoother pedalling
– **Sealed Bearings**: Effective protection against mud and water for extended durability
– **BSA Threaded Design**: Secure installation, compatible with both 68mm and 73mm shell widths
– **Lightweight**: Only approximately 84g
– **Hollowtech II Compatible**: Designed for SHIMANO 24mm axle cranks

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## Ideal For

Mountain biking, trail riding, and all-terrain riding.

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## Technical Specifications

| Item | Specification |
|—|—|
| Model | BB-MT801 |
| Series | DEORE XT |
| BB Standard | BSA Threaded |
| Shell Width | 68mm / 73mm |
| Axle Diameter | 24mm (Hollowtech II) |
| Bearing Type | Sealed Bearings |
| Material | Aluminium |
| Weight | Approx. 84g |
| Origin | — |

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## Compatibility

– **Cranks**: SHIMANO Hollowtech II MTB cranks (24mm axle), including:
– XT FC-M8100 / FC-M8120 / FC-M8130 / FC-M8000 / FC-T8000
– SLX FC-M7100 / FC-M7120 / FC-M7130 / FC-M7000
– FC-MT700 / FC-MT610 / FC-MT600
– **Frames**: BSA threaded bottom bracket shell (34.8mm diameter), 68mm or 73mm width
– **Installation Tools**: TL-FC25 bearing cup adapter (sold separately); use TL-FC37 with impact wrench

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## Notes

– Spacers included; select according to shell width during installation.
– Professional installation recommended; requires specific tools.
– This is a BSA threaded bottom bracket, not suitable for Press-Fit frames.