Box Two Prime 9 Gen 2 Derailleur

The Box Two Prime 9 Gen 2 Derailleur is designed for aggressive terrain. Its new geometry features near-horizontal cable actuation for lighter gear pulls and reduced ghost shifting. The Tri-Pack 2.0 clutch system with larger discs and finer threads increases torque and adjustability, reducing chain slap and simplifying setup. A wide-offset cage provides more pulley offset and surface area for crisper shifting and enhanced toughness. Setup management is streamlined with out-of-sight cable routing, a cable pulley and adjustment screws, and a B-gap tool for a cleaner, simpler installation. Chromoly steel hardware ensures longer service life and enhanced durability. The floating lower pulley points toward the chainring, extending service life and ensuring reliable performance under demanding conditions.