Originally Posted by 3alarmer

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...I have no idea what it is or where made, but there's a Yahoo user's group for SBDU bikes at ti_raleigh_team_pros@yahoogroups.com

There are some guys on there that know a lot more about the SBDU bicycle frames in particular. With the frame number and some pictures, they will make short work of deciding whether it's from the SBDU or not.