Terra Trike's tandem is 3 wheeled fun! In keeping with other Terra Trike recumbent bikes, this tandem promises a leisurely yet fast bike ride that screams "fun." A unique option for this model is the IPS system. This independent pedaling system allows one person to pedal while the other coasts. With the IPS setup, you don't need to have perfect coordination with your partner to have a smooth ride. Go ahead. Stop pedaling and make your partner do all the work. We won't tell unless you do!