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O.S. MAX 21XZ-B V2

OS12183

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234,96 €

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The perfect balance between price and performance.

The 21XZ-B Version II delivers ideal performance at a reasonable price. It continues to exceed the expectations of even pro racers, delivering power comparable to the Speed Spec II at a lower price. Upgrades include a lightened cylinder head, improved cooling and a brand new 22B2 single-needle carb for easy tuning. If you're looking for incredible throttle response and the power to conquer off-road, you've found it in the 21XZ-B Version II.

Characteristics:
  • Performance that rivals the Speed 21XZ-B Spec II
  • Shares the piston, liner and con rod of the Spec II
  • Low center of gravity
  • Blue anodized head
  • Incredible throttle response
  • Silicon-filled crankshaft with tungsten counter weights

Technical Specifications:

  • Displacement: 3.49cc
  • Carburetor Type: 7mm Slide
  • Material: Aluminium
  • Adjustment Needles: 3
  • Glowplug Type: Turbo
  • Exhaust Position: Rear
  • Fuel Type: 25% (Recommended)
  • Bore: 16.27mm
  • Stroke: 16.8mm
  • Pratical RPM: 3,000-41,500
  • Output: 2.56hp @ 34,000 RPM
  • Weight: 362g

announcement

Dear friends,

We want to say thank you very much, for your cooperation, after 15 January 2021, until today, placing your orders, almost entirely through our online store or by Email, which translated into an increase in sales of 34% in relation to the homologated period of 2020.
The most difficult way of working, which now ends, has caused some errors, which have been overcome, serving to partially improve the way we work. Our sincere thanks to all.

We are, again at your disposal 100% with the commitment, already recognized, trying to always do better.

The management

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