These are for Weld.

[katoranger]

http://cgi.ebay.com/ebaymotors/Two-Dong-Hai-Vintage-Motorcycles-Sidecar-and-Parts-/121194598600?pt=US_motorcycles&hash=item1c37c2d0c8#ht_546wt_1005

[Weldangrind]

So cool! Too bad I could never get them registered on this side of the border. I wonder if the engines are based on Brit bikes; I've only seen China military bikes with BMW boxer clones.

[katoranger]

I noticed they had parallel twins too. These are much older than the CJ750 we usually see. They are pretty rough too.