Bikes could be on railroad tracks
A tire could be 3D printed, have no air, and not need to be replaced
Biking could be on roller coasters
Dementia / alzheimer patients could "bike" around familiar neighborhoods
Buses could be bicycles
Communities could have bike parades
Bike chains could be made of string
A bicycle could turn into a washing machine
Biking could be across ice and snow
Tires could be airless
Skiing could be on a bike
Wheel surfaces could be changed without changing the wheel
Bike seat cushions could have airbags
Bike racks could have music or playful designs
Bike riding could help with ADHD and stress
Drunk walking and biking could be dangerous
Jackets, coats, and clothes could be lit up, cooled, or heated
Children could have traffic garden playgrounds
Bike helmets could have lights
Communities could go on bike rides together
Running and exercise programs could people who are homeless / have mental health issues / prisoners
Libraries could contain things other than books
Bikes could be self-locking
Suits could be suitable for biking
Wheel lights could make cyclists more visible
Bike helmets could be invisible
Bike lights could be unstealable and indestructible
Elevated bike lanes could be built
