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  1. NOVAROSSI (#PLUS21-7BT) PLUS 21-7BT Off-Road Engine

    Rating: 3 of 5 Stars! [3 of 5 Stars!]   (3 Reviews)

    Our Price:  Low Price: USD$325.90

    Stock: Out of Stock!

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  • Sleeve: The sleeve is a 7 ports design type, the best compromise to obtain a linear power supply and the minimum fuel consumption.
  • Long stroke : This engine's long stroke, 16.80mm with a bore of 16.26mm, allows having a bigger torque at low rpm.
  • Piston: The piston is realized with a new technique (microcasting) developed by Novarossi; it is stronger and lighter than standard pistons; it better keeps compression at high temperatures.
  • Conrod: The 7075 aluminium alloy conrod is designed with small section to decrease weight, taking care of the strength and reliability; the performances are increased thanks to the lower weight of the moving parts.
  • Crankshaft: The diameter has been increased to 14,5mm in order to improve the torsional resistance ; the balancing has been obtained putting one wolfram alloy insert..
  • Rear ball bearing : The outer diameter of 26.00mm has been adopted in order to avoid ring distorsions and to increase fatigue resistance.


  • Engine Size: .21
  • Displacement 3.49 cm3
  • Maximum power
  • 2.62 hp 2.72 hp
  • R.P.M. (M.P.) 31.300 rpm 32.800 rpm
  • Practical Range
  • 6.000 38.000 rpm 6.00038.500 rpm
  • Bore x Stroke 16.26 mm x 16.80 mm
  • Ports nr. 7
  • Piston type Microcasted
  • Crankshaft 14.5 mm
  • Crankshaft Type SG
  • Glow Plug Type Standard
  • Exhaust Type Rear

    1. Customer Reviews

    2. Displaying 1 to 3 (of 3 reviews)
      Result Pages:  1 

      By Date Added: Monday 29 January, 2007

      By Date Added: Monday 29 January, 2007

      By Date Added: Monday 29 January, 2007

      Displaying 1 to 3 (of 3 reviews)
      Result Pages:  1 

    Write a Review
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