RB Products CXR .21 Competition On Road Engine (Turbo Plug)

RB Products
Discontinued Online
This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.

This is the RB Concepts CXR .21 9-Port Competition On Road Engine. The CXR (Circuit Xtrem Racing) is the big brother to the CX with similar specifications but greater performance. It features a 14.5mm turbo crankshaft balanced with paste, turbo plug use, turbo combustion chamber, 14.5mm ceramic main bearing, lightweight aluminum carburetor, CNC machined piston, competition conrod, lightweight crankcase and a lightweight cooling head that sits lower on the engine for a lower center of gravity. The CXR is an excellent choice for your 1/8 scale on road car.



  • 9+2 Ports with MES
  • CNC machined piston
  • 14.5mm Turbo crankshaft, balanced with paste
  • Competition conrod
  • Turbo combustion chamber with integrated O-ring
  • 14.5 ceramic main bearing
  • Front bearing with 6 balls
  • Low center of gravity and lightweight cooling head
  • Lightweight but strong crankcase
  • Aluminum slide carburetor
  • 8 and 8.5mm venturi restrictors included
Recommended RB Glow Plugs:
  • 01052-6
  • 01052-7
  • 01052-8
Contents: 3.49cc
Bore: 16.22mm
Stroke: 16.80mm
Crankshaft: 14.5mm, balanced
Carburetor: Aluminum 9mm
Porting Intake: 9+2 Bypass
Porting Exhaust: 3
Combustion Chamber: Turbo
Piston: CNC Machined piston
Rod: Competition conrod
Bearings: 14.5mm ceramic main bearing, front bearing with 6 balls
Weight: 330g
Plug: 01052-6 (one included)

This product was added to our catalog on August 14, 2012.