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蘭溪市馳航機械股份有限公司主要生產(chǎn)鋁合金鍛件，擁有多年的鋁合金制品鍛造加工經(jīng)驗。

R21-XD2W

CRANK MATERIAL:FORGED ALLOY-6061-T6

CRANK LENGTH:170MM

CHAINRING:53/39T

OUTER CHAINRING:STEEL "SILVER"PAINTED

INNER CHAINRING:STEEL "SILVER"PAINTED

COMPATIBILITY：9S/8S

PCD:110MM

CHAINLINE:47.5MM

B.B.Axie:113MM(23-68-22R)

CRANK MATERIAL:FORGED ALLOY-6061-T6

CRANK LENGTH:170MM

CHAINRING:53/39T

OUTER CHAINRING:STEEL "SILVER"PAINTED

INNER CHAINRING:STEEL "SILVER"PAINTED

COMPATIBILITY：9S/8S

PCD:110MM

CHAINLINE:47.5MM

B.B.Axie:113MM(23-68-22R)

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