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