21" X 3.25-3.50, 90/90, 100/90 Metal Stem
19" X 3.25-3.50, 90/90, 100/90 Metal Stem
18" X 400-450, 110, 120, MR Metal Stem
16" X 130/90, 140/90, MT-90, MU-85 Metal or Rubber Stem