[KongchangAI]
Unverified85% confidenceFactTime unknown

T47标准(47mm螺纹压入)是为兼顾BB30大轴承内径和螺纹式可靠性而生,既能装24mm也能装30mm曲柄,异响风险低于压入式,是较新车架的理想过渡方案

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