Allen Gears supply industrial-sized gears off the A4104 in Pershore. There are two main types of gear change mechanisms, known as derailleurs and hub gears. Helical gear flowmeters get their name from the shape of their gears or rotors. The gearbox has four forward gears and one reverse. The gearbox had five forward and one reverse gears. Gearboxes are limited to six forward gears. A manual transmission has several shafts with various gears and other components attached to them. The inner clutch pack drives gears 2, 4, and 6. They can also be meshed with the newer double bevel gears. The casing holds three 12 tooth bevel gears inside. There are two main types&colon; derailleur gears and hub gears. Some motoring journalists were critical of untamed torque steer in low gears. The teeth on the two meshing gears all have the same shape. It rapidly established the practicality of compact epicyclic hub gears. Transmission is a hydromechanical type with five forward and two reverse gears.