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O.S. Engines

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An IFMAR-approved 1/10 scale powerhouse!

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Get more first-place finishes easily – just drop the O.S. 12XZ ABC into your on-road ride! Just like the original 12XZ Speed, it offers a compact, lightweight design and drilled cooling fins to improve your vehicle's all-out performance power. Designed for today's leading on-road world champions, they're also perfect for extreme events like the IFMAR World Championships, too!

Displacement: 0.128 cu in (2.10 cc) Bore: 0.543 in (13.8 mm) Stroke: 0.551 in (14.0 mm) Practical rpm range: 5,000-40,000 Power output: 1.65 hp @ 34,000 rpm Engine weight: 8.3 oz (236 g) Requires: 10%-30% nitro fuel

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