Why Ductile Iron?
Offering a higher coefficient of friction than stainless steel – with more consistency during use as heat rises – ductile iron is by far the best material for high performance brake discs. When used with appropriate pads, ductile iron outperforms all other ferrous disc materials and makes modulating the brake pressure applied at the lever to achieve maximum deceleration required much more achievable for all riders, not just professional racers. The grade of ductile iron used has a unique specific heat treatment process applied to it to offer a stress free heat resistant structure and avoids the surface cracking found with other materials and to maximise rotor life. It should be noted that when unused for long periods or during rain, iron discs will assume a brown/rust coloured finish on the swept area until re-used.
