Here are all the options parts for the Xray X4
Reference 06304971
Brand: XRAY
GEAR DIFF OUTDRIVE ADAPTER - HUDY SPRING STEEL™ (2) - 304971
Reference 06305136
Brand: XRAY
ALU SOLID AXLE DRIVESHAFT ADAPTERS - HARD COATED (2) - 305136
Reference 06305876
Brand: XRAY
OFFSET SPUR GEAR 106T / 64 - 305876
Reference 06305878
Brand: XRAY
OFFSET SPUR GEAR 108T / 64 - 305878
Reference 06308275
Brand: XRAY
XRAY 4S SPRING-SET C=2.5 (2) - 308275
Reference 06309319
Brand: XRAY
UNIVERSAL SET OF PLASTIC SHIMS - 309319
Reference 06960140
Brand: XRAY
NUT M4 WITH FLANGE (10) - 960140
Reference 06305866-O
Brand: XRAY
OFFSET SPUR GEAR 96T / 64 - ORANGE - 305866-O
Reference 06305880-O
Brand: XRAY
OFFSET SPUR GEAR 110T / 64 - ORANGE - 305880-O
Reference 06309862
Brand: XRAY
XRAY STAINLESS STEEL WEIGHT FOR SLIM BATTERY PACK 35G - 309862
Reference 06305138
Brand: XRAY
SOLID AXLE ECS BB DRIVESHAFT ADAPTER (2) - 305138
Reference 06303127
Brand: XRAY
ALU SHIM 3x6x4.0MM (10) - 303127