Here are all the options parts for the Xray X4
Reference 06303118-K
Brand: XRAY
ALU SHIM 3x9x1.0MM - BLACK (10) - 303118-K
Reference 06303822
Brand: XRAY
X4 ANTI-ROLL BAR - REAR 1.2 MM - 303822
Reference 06305381
Brand: XRAY
ALU WHEEL SHIM OFFSET 1.0MM (2) - 305381
Reference 06303128-K
Brand: XRAY
ALU SHIM 3x6x6.0MM - BLACK (10) - 303128-K
Reference 06304971
Brand: XRAY
GEAR DIFF OUTDRIVE ADAPTER - HUDY SPRING STEEL™ (2) - 304971
Reference 06305772
Brand: XRAY
OFFSET SPUR GEAR 72T / 48 - HARD - 305772
Reference 06305869
Brand: XRAY
OFFSET SPUR GEAR 99T / 64 - 305869
Reference 06305878
Brand: XRAY
OFFSET SPUR GEAR 108T / 64 - 305878
Reference 06308275
Brand: XRAY
XRAY 4S SPRING-SET C=2.5 (2) - 308275
Reference 06308277
Brand: XRAY
XRAY 4S SPRING-SET C=2.9 (2) - 308277
Reference 06308286
Brand: XRAY
XRAY 4S SPRING-SET C=2.6 (2) - 308286
Reference 06960031
Brand: XRAY
ALU NUT M3 (10) - 960031