This special 21XZ-B edition motor was built to Ty Tessmann's custom requirements in order to help him win of the world championships. Based on B2101, the heat sink head has a refined design for improved cooling during a race on Ty's request. It also uses a newly adopted 5.8mm reducer to improved fuel efficiency making a crusial difference over a long race. This combo set includes a matched exhaust set using a newly designed 90mm long manifold to give Ty the best fuel economy and a reliable stable idle to suit his tough racing requirements.
• 5.8 mm carburettor reducer for improved fuel consumption performance.
• This combo set adopts a 90mm long manifold, for fuel economy and improved idle.
• Silver anodized finish heat sink head designed exclusively for Ty Tessmann.
• Crankcase & crankshaft with laser etched Tessmann logo.
Weight
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356g (12.59 oz)
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Displacement
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3.46cc (0.211 cu.in.)
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Bore
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16.4mm (0.646")
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Stroke
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16.4mm (0.646")
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Power Output
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2.65 ps (2.61 hp) @ 34,000 rpm
|
Practical RPM
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4,000 - 42,000 rpm
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- Brand: OS Engines
- Part No: L-OS1217E
- Barcode: 4531028024519
- Displacement: 3.5cc (0.21ci)
- Starter: Flywheel Start
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