FSA brand gearbox. Shifting has helped Full Speed Ahead become a world leader in high-end gearboxes. No one examines the design and manufacture of every system and every tooth as closely as the FSA. Our determination shows in every turn of the crank and every perfect shift achieved. To meet or exceed the needs of any drivetrain, Full Speed Ahead has developed sophisticated design, testing and manufacturing protocols. This allows Full Speed Ahead to match your needs as perfectly as our derailleurs match the chain. We offer more options, levels and finishes than our competitors. We use the finest materials available, imported from the USA, Europe or our qualified suppliers in Asia, to ensure that durability, performance and appearance outlast and outlast the competition. Full Speed Ahead drivetrains have powered several World Champions, Tour de France and Olympic champions and will exceed your expectations. Compatible with Tempo Adventure Type Chainrings Discipline ROAD, GRAVEL Teeths Number 46 - 30 Crankset Type Double