Here are all the options parts for the Xray X4F
Reference 06305257
Brand: XRAY
ECS BB SC DRIVE SHAFT COUPLING - HUDY SPRING STEEL™ - 305257
Reference 06305860
Brand: XRAY
OFFSET SPUR GEAR 90T / 64 - 305860
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 06305862
Brand: XRAY
OFFSET SPUR GEAR 92T / 64 - 305862
Reference 06302143-S
Brand: XRAY
X4 CFF CARBON-FIBER FUSION UPPER ARM - SOFT - FL/RR - 302143-S
Reference 06326181
Brand: XRAY
STAINLESS STEEL BATTERY WEIGHT 35G - 326181
Reference 06301322-H
Brand: XRAY
FRONT BODY MOUNT SET 6MM - HARD - XRAY
Reference 06305784
Brand: XRAY
SPUR GEAR 84T / 48 - 305784
Reference 06305870-O
Brand: XRAY
OFFSET SPUR GEAR 100T / 64 - ORANGE - 305870-O
Reference 06930154
Brand: XRAY
BALL-BEARING 1.5x4x2 STEEL SEALED - OIL (4) - 930154
Reference 06302133-S
Brand: XRAY
X4 CFF CARBON-FIBER FUSION UPPER ARM - SOFT - FR/RL - 302133-S