EVOLUTION S/C 30 tooth idler gear for A+ boxes using the 7/8″ shaft.Ongoing development and investment of bringing parts up to date from yesteryear with current technology Mini Spares have introduced new EVO straight cut drop gears. With new 2 ring identification marks and part numbers they are not interchangeable with previous drop gears as they have different profiled teeth with a shot peened finish for extra strength giving much more durability and quietness. More efficient as there is less power loss transmitted via gearbox and drop gears.








