Standard curl bars fight gravity. The Pendulum Bar uses it — delivering constant tension through every single rep.
Every standard curl bar — straight, EZ, spider — operates on the same broken principle. Gravity only pulls straight down. When you curl a standard bar, peak resistance hits at 90 degrees and vanishes at the top and bottom of every rep.
That means 60–70% of every curl is wasted range of motion. Your bicep is never under true constant tension. You've been training against a physics problem no one has ever bothered to solve.
The Pendulum Bar is the first curl tool in history designed to work with gravity rather than against it — suspending the weight vertically so the resistance arc follows your actual muscle curve.
Cross-Grip Constant Tension Curl Bar
Lock in your Pendulum Bar at the founding price before we sell out. First production run is limited — once it's gone, the next batch ships 60 days later.
78 of 100 units claimed · Free shipping · 30-day guarantee
| Handle Width | 18" cross-grip span |
| Pendulum Shaft | 12" vertical travel |
| Sleeve Size | 2" Olympic standard |
| Material | 4130 Chromoly Steel |
| Finish | Matte Black / Chrome / Cerakote |
| Weight (bar only) | 14 lbs |
| Max Load Rating | 300 lbs |
| Knurling | Medium-aggressive, volcano pattern |
| Pivot Mechanism | Dual-bearing stainless pivot |
| Country of Origin | USA |
| Warranty | Lifetime on structural welds |
| Patent Status | Provisional Filed 2026 |