Here are all the options parts for the Xray T4 2018 and olders
Reference 06305137
Brand: XRAY
STEEL SOLID AXLE DRIVESHAFT ADAPTERS - HUDY SPRING STEEL™ (2) - 30513
Reference 06305221
Brand: XRAY
ECS (ES) DRIVE SHAFT 51MM FOR 2MM PIN - HUDY SPRING STEEL™ (1) - 3052
Reference 06305224
Brand: XRAY
ECS (ES) DRIVE SHAFT 52MM FOR 2MM PIN - HUDY SPRING STEEL™ (1) - 3052
Reference 06305250
Brand: XRAY
ECS DRIVE SHAFT CASE - HUDY SPRING STEEL™ - 305250
Reference 06305324
Brand: XRAY
DRIVE SHAFT 52MM - HUDY SPRING STEEL - 305324
Reference 06305332
Brand: XRAY
ECS ES (EXTRA STRONG) DRIVE SHAFT 52MM - HUDY SPRING STEEL™ - SET - 3
Reference 06305351
Brand: XRAY
"ALU WHEEL HUB - OFFSET ""-0.75MM"" - BLACK (2) - 305351"
Reference 06305352
Brand: XRAY
"ALU WHEEL HUB - OFFSET ""+0.75MM"" - BLACK (2) - 305352"
Reference 06305353
Brand: XRAY
"ALU WHEEL HUB - OFFSET ""+1.5MM"" - BLACK (2) - 305353"
Reference 06305434
Brand: XRAY
HIGH-PERFORMANCE LOW FRICTION KEVLAR DRIVE BELT FRONT 3 x 513 MM - 30
Reference 06305447
Brand: XRAY
HIGH-PERFORMANCE LOW FRICTION KEVLAR DRIVE BELT REAR 3 x 189 MM - 305
Reference 06305577-O
Brand: XRAY
FIXED PULLEY 20T - LOW FRICTION - GRAPHITE (2) - 305577-O