Designed for biking enthusiasts who appreciate a combination of high quality and a sporty stylish design the proform 250 spx indoor cycle features an 18kg 396lbs flywheel and a quietly fluid belt drive system ensuring realistic cycling experience a manually adjustable natural wool felt resistance system lets you quickly change workout intensity with a simple turn of the knob whereas a padded adjustable saddle and non slip multi grip handlebars allow for a natural riding position the bi