Please see the attached resource below for an exploded diagram of the GUIDE R/RS Caliper B1 (2017) . Determine which part(s) you require and cross reference with the list below.
1. The B1 (2017) Generation was upgraded to the S4 caliper and uses S4 caliper kits & S4 Hydraulic Line Kit.
2. See lever pages for exploded view of Hydraulic Line kits
3. SRAM Tool Bleeding Edge needed to bleed S4 calipers