If you're looking for a simple piece of exercise equipment you can use without preparation at any time, Consider an "We R Sports" Exercise bike or fitness bike.
These machines give your cardiovascular fitness in general.
They're ideal if you enjoy cycling but live in a city and don't like to share your workout with traffic.
Instruction manual and all necessary tools for easy home assembly are included
Assembled Size CM: (L) 90 x (W) 54 x (H) 139
Product Weight: 26.6kg
Boxed Size CM: (L) 100 x (W) 28 x (H) 61
Boxed Weight: 29.6kg
Maximum User Weight: 120kg / 264 / 18.9 stones