RollerBoys Derailleur Pulleys 12T-12T Ceramic SRAM Road Black 2024 FREE shipping within Australia over AU$100.00 In stock. Available via Buy Online Only Share Loading Facebook Like button... RollerBoys Derailleur Pulleys 12T-12T Ceramic SRAM Road Black 2024 FREE shipping within Australia over AU$100.00 In stock. Available via Buy Online Only Share Loading Facebook Like button...