* First Name * Last Name * E-Mail * Phone Brand COMMENCALOther Other Brand * Date of purchase Order number * Serial number (located on the underside of the bottom bracket shell) * File Attachment 1 - proof of purchase, online order or invoice (max. 5Mb) * File Attachment 2 - photo of the full bike (max. 5Mb) * File Attachment 3 - photo of the serial number (max. 5Mb) Description of the issue and how the problem occurred * File Attachment 4 - close photo of the problem (max. 5Mb) File Attachment 5 - close photo of the problem (max. 5Mb) Send Δ