The DKN Z-11D indoor cycle provides smooth & quiet operation thanks to the 18.5kg (40.8lbs) flywheel & offers manually controlled resistance with a double brake system. This solid & stable machine with a chain-drive transmission has a comfortable, double-stitched contoured seat with 'one-touch' vertical & horizontal adjustment & features a height adjustable handlebar to ensure optimum support for all the riding positions. The machine comes with built-in connections & a pre-installed magnet speed sensor for use with optional DKN Speedbike computer 1.1 allowing to track your progress. The emergency stop feature lets you stop the rotating mass safely & conveniently, while secure 'toe-cage' pedals lock the feet in place enabling you to focus on maximizing performance. Plus, to avoid dehydration when exercising, the bike has a water bottle holder & the transport wheels guarantee easy transportation.