Thank you. I am newbie to onroad, this is my first. I am running a mmpro with an LRP 4.5T motor, and thunder power 40c 5000 2s lipos. Is this the spur needed and what number pinion should I run with this setup to stay nice and cool? Is the spur a direct bolt on?
http://www.amainhobbies.com/product_...-Spur-Gear-78T
Or would this be a better choice? Looks to have the 4 holes for mounting as opposed to two.
http://www.amainhobbies.com/product_...-Spur-Gear-76T