Brief description the powertech s1000 racing exercise bike brings the gym to your home with a range of fantastic features the 13kg flywheel is chain driven for a more realistic pedalling feel and is also quieter than other belt driven bikes the tension control is manually adjusted using the control knob on the cross bar this knob also acts as the break when pushed downwards the computer has a large screen and is situated between the handlebars for easy reading during workout the computer a