Identify tandem frame with no LK99040060 Looking to identify my tandem frame
It was bought without decals and buyer claimed it to be a Gary Fisher but I want to know for sure before I have it refinished. 
It has eccentric bottom bracket shell and v-brake mounts 
Frame number stamped underneath the shell is LK99040060
Any help gladly appreciated
IS that the only number listed?  I looked on a bike registry and found nothing, but it may not include tandems, or there is another number stamped on the frame somewhere.  This site: https://bikeindex.org/serials  give pictures and descriptions of different locations for that stamp to be.  But I have not found a registry for tandems or that just says it includes tandems.

I am sorry that I could not help more!  Good luck :)