The Shimano BB-MT501 Bottom Bracket delivers lasting smoothness and reliable performance for mountain bike riders seeking efficiency and durability.
Designed for 24mm Shimano MTB cranksets, it combines robust construction with advanced sealing to reduce friction and extend bearing life.
Built around Shimano’s HOLLOWTECH II system, the BB-MT501 maintains a strong balance between low weight, stiffness, and efficient power transfer, keeping every pedal stroke consistent across technical climbs and demanding trail conditions.
Key Features
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Compatible with Shimano 24mm MTB cranksets
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Threaded (BSA) shell design for secure installation
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Enhanced sealing for improved durability and smoother rotation
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High-quality sealed bearings for reduced maintenance
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Optimised stiffness-to-weight ratio through HOLLOWTECH II construction
Technical Specifications
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Shell Width: 68 / 73 mm
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Compatibility: Shimano 24mm spindle MTB cranksets
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Thread Type: BSA
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Colour: Black
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Technology: HOLLOWTECH II