Here are all the options parts for the Xray XB4 2020 and olders
Reference 06362480
Brand: XRAY
ANTI-ROLL BAR 2.0 MM - 362480
Reference 06972031
Brand: XRAY
SILICONE O-RING 3x2.1 (10) - 972031
Reference 08293561
Brand: HUDY
HUDY ALU REAR WING SHIM (2) - 293561
Reference 06329901-H
Brand: XRAY
2WD/4WD REAR WHEEL WITH 12MM HEX - WHITE -HARD (10) - 329901-H
Reference 06363113-M
Brand: XRAY
COMPOSITE LONG SUSP. ARM REAR LOWER RIGHT - MEDIUM - 363113-M
Reference 06364978
Brand: XRAY
COMPOSITE CENTER DIFF SPUR GEAR 78T / 48 - 364978
Reference 06365353
Brand: XRAY
ALU WHEEL HUB 12MM - V2 (2) - 365353
Reference 06365357
Brand: XRAY
"ALU WHEEL HUB 12MM - OFFSET ""+2.25MM"" (2) - 365357"
Reference 06940512
Brand: XRAY
BALL-BEARING 5x12x4 RUBBER SEALED - OIL (2) - 940512
Reference 06364904
Brand: XRAY
GEAR CENTER DIFFERENTIAL - LARGE VOLUME - SET - 364904
Reference 06363112-M
Brand: XRAY
COMPOSITE SUSPENSION ARM REAR LOWER RIGHT - MEDIUM - 363112-M
Reference 06363122-M
Brand: XRAY
COMPOSITE SUSPENSION ARM REAR LOWER LEFT - MEDIUM - 363122-M