Here are all the options parts for the Xray X4
Reference 06305137
Brand: XRAY
STEEL SOLID AXLE DRIVESHAFT ADAPTERS - HUDY SPRING STEEL™ (2) - 30513
Reference 06305874
Brand: XRAY
OFFSET SPUR GEAR 104T / 64 - 305874
Reference 06305876
Brand: XRAY
OFFSET SPUR GEAR 106T / 64 - 305876
Reference 06306165
Brand: XRAY
T4 GRAPHITE BATTERY STRAP FOR LiPo - SET - 306165
Reference 06308029
Brand: XRAY
ULP ALU PROGRESSIVE SHOCK SYSTEM - SET (2) - 308029
Reference 06308274
Brand: XRAY
XRAY 4S SPRING-SET C=2.3 (2) - 308274
Reference 06308308-O
Brand: XRAY
ULP ALU SHOCK ABSORBER-SET - ORANGE (2) - 308308-O
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 06306199
Brand: XRAY
HOLDER FOR ADJ. BATTERY HOLDER SLIM BATTERIES (2) - 306199