Fast Road clutch kit is recommended for vehicles with up to a 20% increase in torque above standard. The clutch disc has a spiral woven glass fibre friction material with a heavy copper core. The glass fibre is a fairly soft material which allows for a smooth engagement of the clutch and consistent performance from low to high temperatures. The added copper in this friction material allows the clutch to perform well at even higher temperatures, as well as improving burst strength (approximately 9000 RPM) and helping to dissipate heat through the material. The strong springs used in Black Diamond’s Stage 1 clutch kit create greater clamping pressure on the clutch disc, providing a more instant response and reducing the chance of unwanted slippage. As the organic compound used in the Stage 1 clutch disc is relatively soft, it also benefits from a minimal breaking in period.
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