Howdy Prone. Welcome to the forum!
Just to add to. My all time favorite throttle has dual brakes (if ya want to have both on one handle) Can get it from many suppliers and is stouter and more comfortable then the regular kit ones.
Check with any of the suppliers on either side here or google * Dual Brake Twist Throttle Kit * Pic below. It is around 20 bucks and I think well worth it.