OS Max B21 Ronda Drake S25820 Engine - Presentation:
- New “Pink” cylinder head with special laser engraving
- New liner/piston assembly with new transfer diagram
- New crankshaft with double tungsten balancing
- Resized bore and stroke
- “Pink” 6.5mm and 8mm carburetor reducers to optimize consumption/performance
- OS Speed P3 Gold spark plug ensuring better return to idle
OS Motor Max B21 Ronda Drake S25820 - Features:
- For 1/8 all-terrain buggy
- Displacement of 3.49cc
- 16.40mm bore
- 16.55mm stroke
- Operating speed from 4,000 to 42,000 rpm
- Announced power of 2.65 hp at 34,000 rpm
- Weight of 352gr
