Unpainted gloss black finished ABS material. For air ride equipped bikes. 5-axis CNC machined ABS side covers. Fits as a direct replacement for the OEM side covers. Note: FXDRS models require an additional mount bracket for the left side cover; separately available as 575559. Note: The side cover is ''clean'' and has no machining done for the air ride system. Note: With approval. Check your local MCS dealer or the MCS sales department for exact type of approval and validity on bike model and years on the test report.