OS MAX 21 XR-B V2 #1AW00

2806N
€196.99 *

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Powerful performance 1/8 scale buggy competition is as fierce as it gets. You want every... more
Powerful performance
1/8 scale buggy competition is as fierce as it gets. You want every advantage possible — and it starts with the 21XR-B Version II engine.

This version of the 21XR-B power plant has been totally re-designed. It's even more reliable, and the new 21J3-I carb is easy to tune. The aluminum cooling head ensures steady power even under harsh conditions.

And when you're ready to move up to top competition, you can get up to speed with the 21XR-B Version II. This engine is upgradeable with high-performance O.S. Speed Parts, letting you realize your full winning potential. Equip your ride with the 21XR-B Version II, and start owning the podium.

The 21J3-I carb comes with two intake restrictors that can be swapped out quickly and easily for fine-tuning to meet track conditions. The yellow (7mm) restrictor (pictured) gives you more bottom end, while the red (8mm) restrictor delivers more top end.

The blue-anodized aluminum cylinder head delivers superior cooling.

Includes: P3 turbo plug

Features
  • Engineered for up-and-coming 1/8 scale buggy club racers
  • A dependable, low-maintenance engine

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Technical information
Distance of screw hole / longitudinal [mm]: 21
Distance of screw hole / crosswise [mm]: 37
Item Number Manufacturer: 1AW00
Model: 2-Takt
Diameter of fixing hole [mm]: 3,3
Bore [mm]: 16,27
Width [mm]: 45
rpm range, approx.: 4000 - 40000
All-up weight [g]: 380
Height approx. [mm]: 102,2
Cylinder capacity [ccm]: 3,49
Length to hub: 64,5
Overall length, approx. [mm] : 94,4
Output [kW / PS] at [rpm]: 2,45 (2,2) at 33,000
Carburetor : 21J3-I V2
Shaft thread: UNF1/4.28
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