Your triceps make up two-thirds of your arm mass. Yet most lads ignore them in favour of curls.
That's a mistake. A lad with 18-inch triceps looks bigger than a lad with 20-inch biceps and 16-inch triceps. The physiology doesn't lie.
Even more: triceps have three heads, and the long head is where the magic happens. Develop it properly and you get that horseshoe shape—the deep groove down the middle of your arm when you're lean. It's the difference between big arms and genuinely impressive arms.
The Anatomy: Three Heads
Lateral Head The outer portion of the tricep. Visible from the front and side. Gets worked by most pressing movements.
Medial Head The inner head, mostly hidden unless you're extremely lean. Contributes to arm width and thickness.
Long Head The thick, meaty head that creates the horseshoe and arm height. It originates above the shoulder (on the shoulder blade), so it gets stretched maximally when your arm is overhead or extended behind you. This is where size lives.
The Reality: the long head is underdeveloped in most lifters because they don't train with their arms overhead enough.
Long Head vs Lateral Head: The Trade-Off
For Long Head Development:
- Overhead extensions (dumbbell, EZ-bar, cable).
- Any movement where your arm is behind or above your body.
- Full range of motion, light to moderate weight, controlled eccentric.
- Reps: 8-12.
For Lateral Head & Overall Mass:
- Pushdowns (rope, V-bar, straight bar).
- Close-grip bench press and dips.
- Heavy, compound pressing.
- Reps: 6-12.
The issue: most arm routines are 80% pushdowns and bench pressing, 20% overhead work. Flip it. Your triceps need 60-70% overhead stimulus if you care about the horseshoe shape.
Overhead Extension Science
When your arm is extended overhead, the long head is maximally stretched. The stretch under tension is where hypertrophy happens. Pair that with a heavy contraction (the lockout) and you've got the ideal stimulus for growth.
Dumbbell Overhead Extensions
- One arm, full range, controlled.
- You can load heavy and feel the long head stretch deeply.
- Risk: elbow stress if you go too heavy too fast.
- Rep range: 6-12.
- Recommendation: 3-4 sets, 2-3x per week.
EZ-Bar Overhead Extensions
- Both arms, less wrist strain than barbell.
- Easier to load heavy than dumbbells (stability advantage).
- Full range achievable.
- Rep range: 8-12.
- Recommendation: 3 sets, 2x per week.
Cable Overhead Extensions
- Constant tension throughout.
- Safer than dumbbells on the elbows.
- Light weight, high reps (12-15), perfect for volume.
- Recommendation: 3 sets, 2-3x per week.
Single-Arm Cable Overhead Extensions
- Unilateral, constant tension, excellent mind-muscle connection.
- Light weight, high reps.
- Recommendation: 3 sets per arm, 1-2x per week.
Rope Pushdowns vs Straight Bar vs V-Bar
Rope Pushdowns
- Neutral grip, less wrist stress.
- Allows end-range supination (twist your hands out at the bottom)—this hits the long head harder than a straight pushdown.
- Good for mind-muscle connection and the pump.
- Reps: 10-15.
- Best for: hypertrophy and arm definition.
Straight Bar Pushdowns
- Locks your wrist, forces strict form.
- Hits all three heads equally.
- Heavier weight possible than rope.
- Reps: 8-12.
- Best for: strength and density.
V-Bar Pushdowns
- Close grip, lateral head emphasis.
- Heavier weight possible.
- Reps: 8-12.
- Best for: lateral head and pure size.
The verdict: use all three, but rope pushdowns should be your primary because they allow for the end-range supination that specifically targets the long head at the bottom position.
The Best Tricep Exercises (Ranked)
Tier 1: Horseshoe Builders
Dumbbell Overhead Extensions Maximum long head stretch, heavy, compound. 3-4 sets x 6-10 reps.
EZ-Bar Overhead Extensions Easier than dumbbells, still heavy, long head focused. 3 sets x 8-12 reps.
Rope Pushdowns (supinated) Long head emphasis at the bottom, perfect pump, consistent tension. 3 sets x 12-15 reps.
Tier 2: Mass & Density
Dips (weighted if light) Heavy, compound, hits all three heads. 3-4 sets x 6-12 reps.
Close-Grip Bench Press Tricep-dominant pressing, heavy, dense. 3-4 sets x 6-10 reps.
V-Bar Pushdowns Lateral head, heavy, dense. 3 sets x 10-12 reps.
Tier 3: Volume & Pump
Cable Overhead Extensions Safe, high reps, constant tension. 3 sets x 12-15 reps.
Machine Dips Controlled, no balance requirement, good for high reps. 3 sets x 12-15 reps.
Straight Bar Pushdowns Strict form, all heads, good for density. 3 sets x 10-12 reps.
Programming for the Horseshoe
Train triceps 3x per week for optimal growth. Hit the long head directly 2x per week with overhead work.
Sample Full Tricep Routine
Day 1: Overhead & Density
- Dumbbell Overhead Extensions: 4 x 6-8 reps
- Rope Pushdowns (supinated): 3 x 12-15 reps
- Machine Dips: 3 x 12 reps
Day 2: Pressing & Mass
- Close-Grip Bench Press: 4 x 6-8 reps
- V-Bar Pushdowns: 3 x 10-12 reps
- Cable Overhead Extensions: 3 x 12-15 reps
Day 3: Volume & Pump
- EZ-Bar Overhead Extensions: 3 x 8-10 reps
- Rope Pushdowns (supinated): 3 x 15 reps
- Straight Bar Pushdowns: 3 x 10-12 reps
This hits the long head twice heavily (Days 1 and 3), includes pressing for the lateral head and overall density, and provides 9 sets of tricep work per week—enough to drive growth without overuse injury.
Progressive Overload Checklist
- Week 1-2: establish baseline and form.
- Week 3-4: add weight by 0.5-1kg if you're hitting the top of the rep range.
- Week 5-6: consider a deload week (reduce volume by 30%).
- Week 7-8: reset and push for new rep maxes at the same weight.
Your triceps will grow. The horseshoe shape takes time, but 12-16 weeks of consistent overhead work will visibly change your arm aesthetics.
Reality Check
Triceps are slow to grow. You won't gain a visible half-centimetre in four weeks. But over 12 weeks with proper programming, you can expect 0.5-1cm of new mass, mostly from the long head. That translates to genuinely more impressive arms.
The guys with the best arms aren't training them as an afterthought. They're training triceps seriously, with heavy overhead extensions, and they're training them often.