Here are all the options parts for the Xray NT1 2018 and olders
Reference 06335581
Brand: XRAY
SPRING C=7.8 FOR GEAR BOX - MEDIUM - SILVER (2) - 335581
Reference 06335657
Brand: XRAY
GRAPHITE 2-SPEED GEAR 57T (1st) - 335657
Reference 06335658
Brand: XRAY
GRAPHITE 2-SPEED GEAR 58T (1st) - 335658
Reference 06335790
Brand: XRAY
COMPOSITE BALL-BEARING BUSHING FOR MIDDLE SHAFT (2) - 335790
Reference 06335801-O
Brand: XRAY
LOW FRICTION COMPOSITE BELT PULLEY SET - GRAPHITE - 335801-O
Reference 06335810-O
Brand: XRAY
LOW FRICTION COMPOSITE BELT PULLEY 20T - 2-SPEED-CENTER - GRAPHITE-33
Reference 06335828-O
Brand: XRAY
LOW FRICTION COMPOSITE BELT PULLEY 18T - 2-SPEED-SIDE - GRAPHITE - 33
Reference 06335859-O
Brand: XRAY
LOW FRICTION COMPOSITE BELT PULLEY 19T - MID-CENTER - GRAPHITE - 3358
Reference 06335885-O
Brand: XRAY
LOW FRICTION COMPOSITE BELT PULLEY 25T - MID-SIDE - GRAPHITE - 335885
Reference 06336151
Brand: XRAY
COMPOSITE BATTERY PLATE - 336151
Reference 06337252
Brand: XRAY
ALU ADJUSTING NUT M10x1 (4) - 337252
Reference 06337253
Brand: XRAY
COMPOSITE ADJUSTING NUT M10x1 WITH BALL CUP (4) - 337253