More expensive models have front telescoping shock absorber forks. Enjoyed by serious and recreational riders riding more on pavement who want more nimbleness and speed than wide tire 26 wheel bikes offer. Beach bikes, fat tire bikes. Usually heavier bikes with one speed and coaster, foot brakes, or multi-speed with hand brakes, wide tires, upright handlebars and seating position. Allow riders to sit in a reclining position and pedal with their feet-forward.
Seats are more like lounge chairs, with less leaning forward, and reduced fanny pressure.
Available models mostly made by small manufacturers. Generally expensive, but worth the price to many people. Bicycles built for two riders. Have two seats, handlebars, and pedal-cranksets, and a longer wheelbase. May have upright handlebars or turned-down handlebars.