All Wheel Drive Bicycle

Basics

• A bicycle that has a powered front and back wheel, as opposed to just the rear wheel
• Can be mechanical, mechanical electric, or electric only in design
• Has the advantage of more grip, and possibly more efficiency due to no "dead weight wheels"

Industry Standards

Chain Based Mechanical Mechanical

• This Patent

Gear Based Mechanical

Christini Bicycles

• Their Homepage

Mechanical Electric

• These are quite rare due to the complexity involved, especially if one wants all wheel for both modes; not just electric mode (via two hub mounted motors)

Christini Bicycles

• Their Homepage

Electric Only

• Too many to list really, just get a bike, slap a motor on each hub, wire it up, and you got yourself a functional all wheel drive bike, not desirable though due to no backup after battery depletion

Minimum Viable Product

• A High Rigidity Cargo Bike that Has All Wheel Drive
• Long Lifetime

Basic Design

Frame

• Steel Pipe Welded or Fibre Reinforced Pipe framing

Mechanisms

• Basicall same steering as a standard bike
• Dual Chain System (Like The Patent) with removable covers on all the chains for safety as well as durability (Stuff can't get into them as easily

Tires

• anywhere from 4-5 inch diameter, depends on money available, conditions it will be used in, and weight of vehicle total
• This is essentially the highest end one ~150 USD
• many for inches f=go for around 50 USD or so for cheap ones and 100 USD for the nicer ones
• Could Possibly Expirement With 3D Printed ones, (Airless even) but durability is questionable

Pedals

• 3D Printed With a Strong Material (Nylon, PC, ABS, Composites, etc)

Handles

• TPU 3D Printed

See Also

• Open Source Landcraft Construction Set
• Velomobile