EXTERNAL BOTTOM BRACKET SET
· Thread BC1.37X24T.
· 24mm through Axle.
· Nylon sheath.
· One size fits both 68mm & 73mm.
15995292993
Mr. Sun
Chinaguocong1@guocongcheye.com
No. 1, Huguang West Road, Dingshu Town, Yixing City, Wuxi City
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