Steel 43 teeth 420 inside 110mm

>
4 hole pitch of 8mm fixing = 125mm
If you want to take longer you can take an output pinion motor 17dents (ref 464) which will give you a higher ratio of 10%.
Assignment:
APOLLO MOTOR: PM-D3, D5 AM-AM-D7
HENOT: SOHOO125 2006 SOHOO 125 PRO2
ORION: AGB21-2006 AGB29
X-BOSS: REVENGE2
Capades: AGB29