Welcome to the VEX forum!
Since you’re new, I’d like you to notice the magnifying glass in the right-upper corner of the screen (right next to the circle with your profile picture!) This is the search bar! Please refer to it before making a post!
There are already topics on gear ratios and drivetrains.
(such as this on the VEX forum)
Notify us back on this post if you still need help.