PROX Distributieketting 104 schakels They have an iridium alloy They have an iridium alloy on the center electrode RFX Pro Series Clutch Covers are CNC machined from a solid billet of 6061 T6 aluminium which allows thin light weight sections to be machined whilst still increasing strength and durability over standard covers It can withstand the high demands of high performance engines and offers reliable performance over a long service life Low friction and noise generation: