ceramicspeed-ospw-system-for-sram-1x11-speed-type-4
ceramicspeed-ospw-system-for-sram-1x11-speed-type-4, The CeramicSpeed Oversized Pulley Wheel System provides optimization and increased efficiency of the rear derailleur through its extremely low-friction bearings and unique overall design.Features a 14-tooth upper pulley wheel and a 18-tooth lower pulley wheelAluminum pulley wheels have a narrow-wide profile that ensures chain retentionThe robust cage is crafted from polyamide and carbon fiber for durability and light weightThe cage design allows you to choose between two spring tension settings to customize performance and reduce chain drag