Component Notes:

Roadster.2 models came with interchangeable road and track dropouts, so you can run the same frame for standard Road riding/racing, as well as Track use with a standard Track set-up.
Changing the Roadster dropouts from Road (Vertical) to Track (Horizontal) changes the rear spacing from 130mm to 120mm for track hubs, and also changes the angles of the bicycle by one degree, both head tube and seat tube (74°/74°).
Track dropouts also raise the Bottom Bracket height by .405" (10.3mm).