O.S. SPEED 12TZ SPEC II w/11HBS

 This is the O.S. Max 12TZ Spec II (P)  Crankshaft
                  Speed Tuned Engine for 1/10 scale racing.
SPECS:    Bore:         0.543" (13.8mm)
          Stroke:       0.551" (14.0mm)
          Displacement: 0.128 cu in (2.1cc)
          Practical RPM Range: 5,000-44,000
          Power Output: 1.7 ps/35,000 RPM
          Weight: 7.336oz (208g)