Main Gear : 150T. 1 x Tarot 450 Helicopter Main Drive Gear Set.
STASRC 550 600 ESP 170T main drive gear set for ALIGN 600E/PRO/L RC Helicopter
Align Trex 450L Pro Complete Main Gear Case/ Main Drive Gear & Tail Drive Gear
3Pcs Tarot 150T 0.5M Main Drive Gear For Trex 450 V2 V3 PRO RC Helicopter
2Pcs 170T main drive gear for ALIGN 550 600E/PRO/L RC Helicopter
Tarot 450 Helicopter 150T Main drive gear for Align Trex 450 V2 V3 PRO KIT
Hirobo Freya .90 main drive gear and one-way, nice.
