OSSPEED 21XZ-B SPEC2 W/21J(B) - RACERC
OSSPEED 21XZ-B SPEC2 W/21J(B) - RACERC

OSSPEED 21XZ-B SPEC2 W/21J(B)

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€329
Regular price
€350
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€21 (6%)
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SKU: OSM12175

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Product Information

This is the O.S. Speed 21XZ-B Spec II Tuned Off-Road Competition Buggy Engine. Since their inception, drivers around the world have equipped their vehicles with O.S. Speed engines because they demand a race-winning performance edge. The 21XZ-B Speed Spec II has been factory tuned for maximum performance, with modifications that make this power plant leaner and meaner than any XZ-B model ever produced. The Speed Spec II is engineered to deliver next level performance, and is guaranteed to give you the power you need to make it to the top of the podium. 

Features: 
  • Lighter DLC coated, tungsten slugged and silicone ramped crankshaft
  • Modified piston and con rod that reduces overall weight
  • Redesigned cooling head with V-shaped fins for lower CG and efficient cooling
  • 21J carburetor for smoother acceleration and better fuel mileage
  • A 6.5mm venturi is installed; 6mm and 7mm venturi's are included
Specifications: 
Displacement: 0.213 cu in (3.49 cc) 
Bore: 0.641 in (16.27 mm) 
Stroke: 0.661 in (16.8 mm) 
Practical RPM Range: 4,000-42,000 
Output: 2.65 ps @ 34,000 rpm 
Weight: 12.52 oz (355 g) 

Includes: 
  • 21XZ-B Speed Spec II Buggy Engine w/21J carburetor
  • P3 Turbo Glow Plug
  • Exhaust Seal Ring
  • 6mm, 6.5mm and 7mm Venturi's
  • (2) Dust Caps
  • Instruction Manual

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