Triceps Workout: 3 Superset Workout Routine For Killer Triceps - GymGuider.com Curl after curl won’t build sleeve-busting arms. Sorry to be the bearer of bad news, but it’s true. If you truly want super-sized arms, you need to spend less time on your biceps, and dedicate a bit more time on your triceps.And here’s why…Your triceps comprise of more than two-thirds of your upper-arm mass. Building thicker, more developed tricep muscles makes your entire arm look gun-worthy rather than…