The body sculpture bc 4612 pro racing bike is a high quality indoor exercise bike with a range of attractive features the flywheel is a large 18kg for an ultra smooth workout the handlebars and saddle are height and reach adjustable to ensure a comfortable workout for all users adjustable featuresthe bikes saddle and handle bars are adjustable ensuring they are in the correct position for your body will prevent straining and allow you to get the most from your work out adjustable micro te