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

RB Products
This item is discontinued and no longer available for purchase. You may want to search our site for a similar item.
Low Price: $569.99
Discontinued Online

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.