Some of our favorite links are listed below ...

IMWA (Irbit Motorworks America), the importers of Ural motorcycles and sidecars:
IMWA (Ural America)

Royal Enfield Motorcycles USA:
Royal Enfield USA

Whizzer Motorbikes:
Whizzer Motorbikes

Black Widow Cams, is working with Raceway Services to develop a set of high-performance cams for Ural engines:
Black Widow Cams

IMWA (Ural America) runs a great web forum for owners and enthusiasts alike:
IMWA Web Board

Russian Iron is a great website and forum for all makes of Russian motorcycles and sidecars:
Russian Iron

Soviet Steeds Motorcycle Collective - An independent gathering place for Ural and Dnepr enthusiasts:
Soviet Steeds

Here's the Wikipedia entry about IMZ-Ural:
IMZ-Ural Wikipedia

Here's the Wikipedia entry about Royal Enfield:
Royal Enfield - Wikipedia

Motorcyclist and writer Carla King made a solo circumnavigation of the United States, driving an Ural sidecar.  See her chronicles, or order the book, on her website:
Carla King's "American Borders"