Here are all the options parts for the Xray X4
Reference 06302665
Brand: XRAY
COMPOSITE BALL JOINT 4.9MM - CLOSED WITH HOLE (4) - 302665
Reference 06301322-H
Brand: XRAY
FRONT BODY MOUNT SET 6MM - HARD - XRAY
Reference 06305257
Brand: XRAY
ECS BB SC DRIVE SHAFT COUPLING - HUDY SPRING STEEL™ - 305257
Reference 06305870
Brand: XRAY
OFFSET SPUR GEAR 100T / 64 - 305870
Reference 06305242
Brand: XRAY
DRIVE SHAFT REPLACEMENT PLASTIC CAP 3.5 MM - ORANGE - STRONG (4) - 30
Reference 06302143-S
Brand: XRAY
X4 CFF CARBON-FIBER FUSION UPPER ARM - SOFT - FL/RR - 302143-S
Reference 06305860
Brand: XRAY
OFFSET SPUR GEAR 90T / 64 - 305860
Reference 06305866
Brand: XRAY
OFFSET SPUR GEAR 96T / 64 - 305866
Reference 06353561
Brand: XRAY
ALU REAR WING SHIM (2) - 353561
Reference 06305784
Brand: XRAY
SPUR GEAR 84T / 48 - 305784
Reference 06326181
Brand: XRAY
STAINLESS STEEL BATTERY WEIGHT 35G - 326181
Reference 06305870-O
Brand: XRAY
OFFSET SPUR GEAR 100T / 64 - ORANGE - 305870-O