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蘭溪市馳航機(jī)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(yàn)。

【全國(guó)】城市切換 移動(dòng)版

B21-SX2

CRANK MATERIAL:FORGED ALLOY-6061-T6

CRANK LENGTH:170MM

CHAINRING:42/32/22T

OUTER CHAINRING:STEEL "BLACK"PAINTED

CENTRE CHAINRING:STEEL "BLACK"PAINTED

INNER CHAINRING:STEEL "BLACK"PAINTED

COMPATIBILITY：8S/7S

PCD:64MM

CHAINLINE:47.5MM

B.B.Axie:110.5MM(22-68-20.5R)

CHAINGUARD:G4XE42

CRANK MATERIAL:FORGED ALLOY-6061-T6

CRANK LENGTH:170MM

CHAINRING:42/32/22T

OUTER CHAINRING:STEEL "BLACK"PAINTED

CENTRE CHAINRING:STEEL "BLACK"PAINTED

INNER CHAINRING:STEEL "BLACK"PAINTED

COMPATIBILITY：8S/7S

PCD:64MM

CHAINLINE:47.5MM

B.B.Axie:110.5MM(22-68-20.5R)

CHAINGUARD:G4XE42

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