O.S. MAX 21XZ-B Version II

Brand: OS Engines

Part Number: L-OS12183

£257.03 Web Price RRP £279.99

Out of stock : Expected January 5th

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Developing on the on the Speed 21XZ-B the Spec II improves on O.S.'s rich history of 1/8th Off Road World Championship winning engines. Racing engines are a constant refinement of design and technology rather than a huge leap. The Speed 21XZ-B is case in point. No one area has been dramatically changed but nearly every area has been subtly developed to make the Speed 21XZ-B Spec II a step forward in performance.

• New lighter crankshaft with DLC coating
• Modified lighter piston and conrod
• Re-designed head with increased cooling
• 21J carburetor
• 6mm and 7 mm carb restrictors
Specifications
Weight 362g (12.77 oz.)
Capacity 0.213 cu.in. (3.49 cc)
Bore 16.27mm (0.641")
Stroke 16.8mm (0.661")
Power Output 2.61 hp (2.56 ps) @ 34,000 rpm
Practical RPM 4,000 - 42,000
  • Brand: OS Engines
  • Part No: L-OS12183
  • Displacement: 3.5cc (0.21ci)
  • Starter: Flywheel Start

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