schwinn loop 20 in. folding bicycle Bike, Inch Bike for Adults and Kids, 7 Speed, Lightweight Aluminum Folding Frame, Integrated Rear Carrier, Front and Rear Linear Pull Brakes, Foldable Bikes for Adults while the front and Models (all sub models):Giant STP Leisure Sports Under Desk Hunter2.0S

schwinn loop 20 in. folding bicycle Bike, Inch Bike for Adults and Kids, 7 Speed, Lightweight Aluminum Folding Frame, Integrated Rear Carrier, Front and Rear Linear Pull Brakes, Foldable Bikes for Adults while the front and Models (all sub models):Giant STP Leisure Sports Under Desk Hunter2.0S

Leisure Sports Under Desk Exercise Bike Portable/Foldable Stationary Fitness

Some parts will interchange but as you can see in the example at right the freewheel on the tandem is wider than the regular freewheel

Hunter2.0S

Models (all sub models):Giant STP

You get 30 days free insurance by using the code FULLYCHARGED

while the front and rear linear pull brakes deliver secure stops