Sledgehammer Tire Slam
Also known as: hammer tire slam
- Primary muscleAbs
- EquipmentSledgehammer
- DifficultyIntermediate
- TypeCore · Rotation
Swinging a sledgehammer onto a tire loads the trunk through a violent high-to-low diagonal while the rebound tests your grip and forearms on every strike. Alternate which hand leads so both sides learn the pattern, and count strikes per side rather than chasing the clock; the quality of each swing is the exercise.
How to do the Sledgehammer Tire Slam
- Stand with your feet shoulder-width apart and hold the sledge hammer with both hands.
- Engage your core and keep your back straight.
- Swing the sledge hammer down towards the ground, using your core and upper body strength.
- As you swing down, pivot your hips and transfer the force to the hammer.
- Repeat for the desired number of repetitions.
Tip: Pivot on the back foot and let the hips turn with the shoulders so the rotation is shared across the whole body.
Muscles worked
Common mistakes
- Twisting from the lower back — the rotation should come from the mid back and hips; keep the lower back neutral and let the hips turn with you on standing variations.
- Using the arms to swing — on cable and band rotations the arms stay locked out in front of you and the torso does the turning.
- Rushing the reps — control the return and pause briefly at the end range on each side instead of bouncing back and forth.
- Loading barbell twists heavy — gravity barely resists rotation, so keep barbell twists light and controlled, and use a cable or band when you want real rotational load.
Sets, reps and where it fits
| Goal | Sets × reps | Rest |
|---|---|---|
| Strength | 3 × 8–12 | 60 s |
| Endurance | 2–3 × 15–25 | 45 s |
Rotations work at the end of a session with the other core work, or as a warm-up before throws and rotational sports. Superset cable rotations with a cable side bend or pull-through on the same stack.
Variations and alternatives
Similar exercises
Without sledgehammer
Frequently asked questions
What muscles does the Sledgehammer Tire Slam work?
The Sledgehammer Tire Slam primarily works the abs. It also involves the forearms and delts, which assist the movement and stabilise the joints.
Is the Sledgehammer Tire Slam good for beginners?
It is rated intermediate, so it suits people who already train regularly. Beginners can still do the Sledgehammer Tire Slam with light load and a spotter or coach watching the first few sessions; if it feels awkward, pick an easier variation from the alternatives below first.
What can I do instead of the Sledgehammer Tire Slam?
If you cannot do the Sledgehammer Tire Slam, try the Kettlebell Figure 8, the Crab Toe Touch or the Russian Twist. Each of them trains the abs through a similar movement, so you can swap them in without changing the rest of the workout.
How many sets and reps should I do?
It depends on your goal. For the Sledgehammer Tire Slam, a sensible starting point is strength: 3 × 8–12 with 60 s rest; endurance: 2–3 × 15–25 with 45 s rest. Train it at the end of a session or pair it with a lower-body lift as active rest.
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