b'RSR C RSR10 RSR9 RSR8 RSR7 RSRDISCRSR8+Weight S-M 8.8 oz|250 gm Retention RSR 11 SL 9.5 oz|270 gm RSR C RSR10 RSR9 RSR8 RSR7 RSRDISCSize S-M 21.7 - 22.8 in|55 - 58 cm Certification CPSC 12.03HELMETSL 23.2 - 24.0 in|59 - 61 cmRSR8+23 VENTS ERGO DIVIDER FASTEXFLOW THROUGH SIDE BUCKLES SYSTEMVENTILATION CLOSUREBUCKLERSR 11 S BUGSTOP ADJUSTABLEPADDING WITH RETENTIONPROTECTIVESYSTEM NETROAD/DIRTSKUDO INCLUDEDRSR C RSR10 RSR9 RSR8 RSR7 RSRDISC- FREE PADS INTERCHANGEABLEHELMET COLORSRSR8+BLACK (MATTE) WHITE (SHINY)HL 79 00 01 US | 170S - M HL 79 00 11 US | 170S - MHL 79 00 02 US | 170L HL 79 00 12 US | 170LMANGO (SHINY)HL 79 00 31 US | 170S - MHL 79 00 32 US | 170LSPARE PARTSBUG STOP Interchangeable internal padding with bug stop RSR 11 S - RETENTION SYSTEMBlack C0 00 04 60 |C0 00 04 77 | RSR C RSR10 RSR9 RSR8 RSR7 RSRDISC73RSR8+'