Here are all the options parts for the Xray XT4
Reference 06365881
Brand: XRAY
COMPOSITE 3-PAD SLIPPER CLUTCH SPUR GEAR 81T / 48 - 365881
Reference 06365884
Brand: XRAY
COMPOSITE 3-PAD SLIPPER CLUTCH SPUR GEAR 84T / 48 - 365884
Reference 06368294
Brand: XRAY
REAR SPRING-SET L=57MM - 4 DOTS (2) - 368294
Reference 06323515
Brand: XRAY
LEXAN REAR WING CENTER FIN - ZAP (2) - 323515
Reference 06930815
Brand: XRAY
BALL-BEARING 8x14x4 STEEL SEALED - OIL (2) - 930815
Reference 06368011
Brand: XRAY
COMPOSITE SHOCK BALL JOINT +2MM & +4MM (2+2) - 368011
Reference 06325341
Brand: XRAY
REAR ADJUSTABLE DRIVE AXLE LB - HUDY SPRING STEEL™ - 325341
Reference 06362244
Brand: XRAY
ALU C-HUB 12° LEFT - 362244
Reference 06365878
Brand: XRAY
COMPOSITE 3-PAD SLIPPER CLUTCH SPUR GEAR 78T / 48 - 365878
Reference 06368293
Brand: XRAY
REAR SPRING-SET L=57MM - 3 DOTS (2) - 368293
Reference 06303120
Brand: XRAY
SET OF ALU SHIM (0.5MM, 1.5MM, 2.5MM) - 303120
Reference 06303121-O
Brand: XRAY
ALU SHIM 3x6x0.5MM - ORANGE (10) - 303121-O