The Polini EVO clutch housing is incredibly light and therefore very revvy! Special feature: This clutch housing is machined from a single piece. In contrast to the Malossi Wing Bell here no cooling ring is shrunk on, rather it’s CNC-machined from a single piece. This has the added advantage that these housings 100% round and there is no need for balancing. The total weight of the housing is also reduced as a result. Probably the lightest Wing housing on the market. The Polini Bell is only slightly larger than the original Bell in diameter and can therefore also be used where a tight fit is required. The huge vents ensure that the Bell temperature is reduced and give a sporty and aggressive look to the Polini clutch Bell. Conclusion: Overall a very good high-end clutch Bell. Very well manufactured. Diameter: 134mm. Weight: 959g