| 摘要 |
A disc-rotor having an adaptor and a disc combined with the adaptor and braked by a caliper, may include the disc having a binding hole formed in the center thereof, a ring-shaped supporting member that may be formed at an interior circumference of the disc and in which a first bolt hole may be formed at the interior circumference thereof, the adaptor having both sides thereof open wherein a flange closely contacting the supporting member may be mounted at a side of the both sides and a second bolt holes may be formed at a circumference of the flange, and a fixing bolt that may be inserted in the first bolt hole and the second bolt hole such that the supporting member may be detachably engaged with the adaptor.
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