Do you know how to patch an inner tube?

你知道怎样修补内管吗？

youdao

This means the line through the head tube ends up in front of your tire patch.

这意味着，通过线管两端头在你前面的轮胎修补程序。

youdao

This means the line through the head tube ends up in front of your tire patch.

这意味着，通过线管两端头在你前面的轮胎修补程序。

youdao