Ospw sram red / force axs black

The oversized pulley wheel system for SRAM Red and Force AXS features an upper 15-tooth and lower 19-tooth pulley wheel configuration, for maximum efficiency. Pulley Wheel Material: Aluminum The hand-built OSPW system has two spring tension settings, allowing for custom setting based on riding conditions. Pulley wheels: CeramicSpeed ​​15 teeth upper and 19 teeth lower