The OS SPEED R21 series was proven in competition at the last World Championship in Brazil and achieved brilliant success in the 2016 All-Japan Championships driven by Shimonaka Shimo. The R21 was refined further to improve low/medium speed torque thanks to a new cylinder liner and a modified crankshaft design. These changes helped the R21 evolve into the R2103. These updates added to proven 'OS SPEED' high quality manufacturing, DLC coating, tungsten weight embedded crankshaft and advanced porting design make the R2103 a difficult engine to compete with. The impressive fuel consumption performance can make the difference between victory and defeat. The engine is then finished with stylish 2 colour graphics on the head so your competition will know what they are up against before you even hit the track!
This combo version of the R2103 is supplied with a T-2080SC racing tuned pipe.
• Race developed
• DLC Coating
• Tungsten weighted crankshaft
• Fuel efficient for longer race stints
• Suitable for on-road use
Included in the Box• RP7 Glowplug
• Flywheel collet
• Exhaust seal ring
• Dust cap set (3mm, 16mm & 18mm)
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Power
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2.8ps @ 33,000rpm (2.76hp @ 33,000rpm)
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Weight
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340g (11.99oz)
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Capacity
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3.49cc (0.213 cu.in)
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Bore
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16.08mm (0.633")
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Stroke
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17.2mm (0.677")
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Practical RPM
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4,000 - 45,000 rpm
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- Brand: OS Engines
- Part No: L-OS1AY01
- Barcode: 4531028024533
- Displacement: 3.5cc (0.21ci)
- Starter: Flywheel Start
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