Here are all the options parts for the Xray X4
Reference 06308179
Brand: XRAY
XLP SPRING-SET C=2.9 (2) - 308179
Reference 06308365
Brand: XRAY
XLP HARDENED SHOCK SHAFT (2) - 308365
Reference 06301382
Brand: XRAY
X4F'24 GRAPHITE BODY POST HOLDER (L+R) - 301382
Reference 06302553
Brand: XRAY
X4 ALU STEERING PLATE 7.5MM FOR DUAL STEERING - 302553
Reference 06301233
Brand: XRAY
"X4 RUBBER BUMPER 3D WITH INNER ""H"" PROFILE - 301233"
Reference 06309003
Brand: XRAY
SET OF CERAMIC BALL-BEARINGS (12) - 309003
Reference 06308031-K
Brand: XRAY
ALU XRAY SHOCK SPRING RETAINING COLLAR - BLACK (4) - 308031-K
Reference 06308164
Brand: XRAY
XLP SPRING-SET PROGRESSIVE C=2.4-2.7 (2) - 308164
Reference 06301079-K
Brand: XRAY
X4 GLASS FIBER UPPER DECK - SPLIT FRONT WAVE - 301079-K