How to check the main gear mod & how many teeth

[keong]

mikado buddies...i cant find the main gear teeth count frm the main gear itself... how do i know if its a 0.7 or 1.0 mod.. as i am upgrading motor from 4020-1100kv to 4025 , i need a 6mm pinion, just i dont know if the main gear is 0.7 or 1.0

this is a logo500 2011 version i think..

thanks

[maarset]

If you have 153 teeth its mpg 0.7. If you have 106 teeth it's mod 1.0. If you have a logo 500 it is usually mod 0.7

[keong]

thanks marsett... i hv a 1200kv motor frm my 550 size heli... i saw frm mikado wesbite..they are selling 6mm shaft 18T only...cant find lower T...if i gonna use the 18T..i think the hs is way too high.. running on 6s.. do you know where can get lower T pinion mod0.7 for 6mm ?