齒盤 RA3-522C


齒盤 RA3-522C

RA3-522C

曲柄: 170,172.5,175mm (Forged AL6061-T6 )
齒盤: 39/53T (39T Steel,53T Alloy)
中軸:Taper Square 113mm/M8
鍊線: 43.5mm
BCD: 130mm
Speed: 2x9s/2x10s

曲柄set RA3-522C

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