This is an optional Oxy Heli 22T Pinion and Clutch Bell assembly suited for use with the Oxy 5 nitro.
This larger pinion gear change the gear ratio from 8.578:1, to 7.40:1 which is the ideal choice when flying the Oxy 5 nitro as a 550-570 class nitro helicopter.
This larger pinion gear change the gear ratio from 8.578:1, to 7.40:1 which is the ideal choice when flying the Oxy 5 nitro as a 550-570 class nitro helicopter.