The Focus 308 exercise bike from Horizon Fitness is from their next tier of exercise bikes. With a heavy duty 8.5kg flywheel for fluid movement & 16 programmable resisatnce levels. Fully adjustable seat positioning both horizontally & vertically allows the user the best ergonomics regardless of the users size. There is also an intergrate wireless HR sensor which means that you can monitor your heart rate without compromising your exercise position.