STASRC 4Pcs Slant Thread Main Drive Gear 121T White For T-Rex 450 Helicopter

STASRC 10Pcs 450 Main Drive Gear 150T for Align Trex 450 SE V2 V3 PRO Helicopter

STASRC 550 600 ESP 170T main drive gear set for Align trex 550/600 RC Helicopter

Tarot 450 Helicopter Front Drive Gear with Bearings for Align Trex 450 PRO DFC

Blade Main Gear 230 S V2 BLH1402 Replacement Helicopter Parts

Align Slant Main Drive Gear 121T for T-REX 450/470 Series.

Align Trex 450 Main Drive Gear Blue HS1219T-84 High Speed

Tarot 450 Helicopter 150T Main drive gear for Align Trex 450 V2 V3 PRO KIT