View source for 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==
*[https://patents.google.com/patent/US9650106B1/en This Patent]

==Gear Based Mechanical==
===Christini Bicycles===
*[https://christinibicycles.com/ 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===
*[https://christinibicycles.com/ 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

=Existing Open Source Designs=
*

=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
*[https://shop.veetireco.com/product-p/snowshoe2xl-n-26x5.05.htm 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

=BOM=
*

=CAD=
*

=See Also=
*[[Open Source Landcraft Construction Set]]
*[[Velomobile]]

=Useful Links=
*