[hpv] 2 wheel drive Delta.

[Jeff Wills]

Moz said:
(I have seen some gems at
> AIPP events, built by people with CNC machines and too much time on
> their hands).
> 
> Moz
> 

One of these is the Contes Engineering quad BMX/mountain bike: http://contesengineering.com/ . I've seen a couple in person, and there's lots and lots of custom parts involved.

It uses a Samagaga differential in the rear, which is apparently commercially available. It certainly looks easier to implement than a multiple-chain system, plus it gives true differential power to the rear wheels and a mount for a disk brake: http://www.samagaga.com/Default.aspx 

Jeff Wills
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