The Holt Organic ball bearing pulley is made with composite uprights for increased lightness. The aluminum axle also provides better heat dissipation than stainless steel and increases the pulley's lifespan by reducing the risk of breakage. The sheave is made of high-performance acetal and the cleat is made of nylon.
| Diameter | Max line | Workload | Breakdown Load |
| 57mm | 12mm | 280kg | 500kg |