What size Pinion to use?

[crashen1]

I am building a crawler using a Pede trans and a 55T motor. I do not know what size of pinion gear to get for it. The truck will be used as a crawler and trail truck. I have been searching and I think I need to use a 19 to 20. But, I do not know what pitch I need to match the Pede trans.

Thanks

 

[musk-rat]

I use a 12t pinion gear and a 87t spur gear on my trucks with a lathe motor. With an 3000 mah pack I can get about 2 hours of run time.

 

[raul duke]

I use a 14t pinion and a 90t spur with great results on a 55T motor. The pitch is up to you most run 48 pitch. You could run 64 pitch and have twice as many gearing options.

 

[Cake Eater]

I am building a crawler using a Pede trans and a 55T motor. I do not know what size of pinion gear to get for it. The truck will be used as a crawler and trail truck. I have been searching and I think I need to use a 19 to 20. But, I do not know what pitch I need to match the Pede trans.

Thanks

Odds are that your Pede came with a 48P gear. Does it have a number on it signifying the number of teeth? If it's in the 80's(again, odds are) then it is a 48P.
I'd look into getting a couple different pinion gears just to try out and see what you like... Something like a 13tooth and a 20tooth.

 

[shocker]

I run a 9t pin and a 90t spur

 

[TxCruzr]

On mine with a 55t lathe I run a 86 tooth spur and a 12 tooth pinion

 

[redneckracer1979]

I run 12/87 with a 55t lathe and I love it. maybe get like a 16t and a 12t and go from there.

 

[crashen1]

Thanks

Thanks for all the input. I ordered a couple of different ones to play with till I find the one that works the best for me.