Originally Posted by
non-fixie
Alas, I don't know who built the frame (yet). I had it down as 'a nicely made Japanese or Taiwanese frame, repainted and relabeled, possibly by Bontekoe' for now. Seat post is 26.8. The original color looks to have been blue.
non-fixie,
your serial number is a match for a Sekai 4000. Here is a link to some posts about a Sekai 4000 with a similar serial number:
http://www.bikeforums.net/showthread...1#post15171667
Read the posts following this also.
Your bike is not an exact match. Brazed on cable eyelets on the top tube, no cut out shapes in the lugs on the top tube. Still very close. Your frame may have been built by Miki, same as Sekai 4000, but for a different brand name and with slightly different specifications.