RB Products SPEED .21 Limited Edition 7-Port On-Road Engine (Turbo Plug) (2014)

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This is the RB Products SPEED .21 Limited Edition 7-Port On-Road Engine. The SPEED 21 is a competition worthy engine, available at a sport engine price. Smooth, linear power delivery and incredible longevity make this a perfect option for racers on a budget, as well as racers looking for a great club race or practice engine.

Features include a 7 port sleeve with 2 bypass ports (RBD01146-73), 14mm crankshaft (RBD01163-14), turbo plug combustion chamber (RBD01082), a nylon carburetor with 8mm venturi (RBD01258-8), all contained within a black coated and strengthened crankcase (RBD01130-1403). This limited edition engine is a must have for the 2014 season!


  • Limited edition racing engine
  • 7 ports + 2 by pass
  • Turbo plug (Includes RBD01052-6)
  • Turbo combustion chamber
  • 14mm crankshaft (long stroke)
  • 14mm main ball bearing
  • Strengthened and black coated crankcase
  • Nylon 8mm carburetor
  • Aluminum orange carburetor wrist pin
  • Orange dust caps

Recommended RB Glow Plugs:

  • RBD01052-5
  • RBD01052-6
  • RBD01052-7
  • RBD01052-8

Recommended Tuned Pipe & Manifold:

  • RBD01351-2092P EFRA 2092 Tuned Pipe
  • RBD01351-05P Conical Medium Manifold

Bore: 16.22mm
Stroke: 16.80mm
Porting Intake: 7+2 by pass
Porting Exhaust: 1
Crankshaft: 14mm
Carburetor: Nylon 8mm
Weight: 318g

This product was added to our catalog on January 14, 2014.

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