The adidas C-21x is a sleek-looking and robust indoor cycle with a 16kg (35lbs) flywheel and red LED lighting that powers up when you create energy. Featuring 8 levels of manually controlled resistance with a quick-shift paddle, the bike lets you easily adjust the intensity for each training session. To provide live workout feedback and help you keep track of your progress, the C-21x is fitted with a clear LCD screen. It offers 4 programmes and allows for accurate pulse readings thanks to a wireless heart rate receiver and an included chest belt. A comfortable riding position can be achieved due to a horizontally and vertically adjustable sprint saddle and an adjustable multi-position handlebar. Plus, there are high grip pedals with toe cages and adjustable straps making the bike suitable for both sprints and longer endurance sessions.