ATT: Revo with reverse 
I dropby at my LHS and pick up a FOC set, i ve been reading some post from other forum about FOC and the main problem they have with reverse is destroying ther primary gear, thats the reason why they do the FOC, my question is- How do you destroy a primary gear???
I dropby at my LHS and pick up a FOC set, i ve been reading some post from other forum about FOC and the main problem they have with reverse is destroying ther primary gear, thats the reason why they do the FOC, my question is- How do you destroy a primary gear???