- 100% 6061-T6 aluminum frame, w/ integrated headtube
- 100% Chromoly, butted and tapered race fork
- 3pc 6061 forged aluminum cranks and sealed Euro BB
- 18” Sun M13II alloy rims w/ 18 x 1 Primo tires
The Proline Micro is a real race bike for big tracks and the smallest of racers.