SMJ Kabuto 21XB2 Engine Power (Pre-Broken in)
Produced by Masayuki Miura based on the OS Speed 21XZ-B Spec II is torque-full long stroke-type engine at middle range speed. This engine is set for high-speed tracks or 1/8 GT cars using a 7mm venturi.
- Diamond like coated, balanced tungsten weight on crank shaft, reduces damage of bearings
- Ceramic bearings