Malossi has made significant changes to the clear design of the twin cylinder, which is made by Yamaha from a single block, allowing the bore to be significantly enlarged. The mechanical and thermal characteristics of the original cylinder remain unchanged.
The pistons, which are made of a special alloy, deserve special attention, and their design allows them to withstand the stresses that occur even after prolonged use.
Nothing has been left to chance here, whether it be the gasket, the lightweight piston pin with conical bore made of high-alloy steel or the chrome-plated and nitrided piston rings. Every little detail contributes to making this cylinder/piston kit a very special product for the demanding and well-informed customer!
- Technical data:
- Bore: 70 mm x2
- Stroke: 73 mm
- Capacity: 560 ccm
- Compression ratio: 1:12
- Max PS @ 7,800 rpm
- Two cylinders from one block: special Al-Si-Cu alloy, hardened and stress-free.
- Cylinder liners: Nicasil-coated and ultra-precise manufactured in state-of-the-art production areas.
- Cross ground honed at 110/130°
- Forged pistons: special Al-Si-Cu alloy, hardened, specially shaped piston head with valve recesses, racing design, reinforced and weight-optimized with constant wall thickness.
- More than 15% increase in performance
- Extreme reliability
- Technology 'Made in Italy'
- Developed and produced at Malossi's plant in Calderara di Reno, Italy.
- Piston rings (3):
- 1. Ring - compression ring
- 2. ring - intermediate ring: phosphate-coated steel
- 3. ring - oil scraper ring: 3-part oil ring (chrome-plated steel ring flakes, including spring ring)
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