IRIS O'RING BLACK SERIES With the new manufacturing improvements made in 2017, we now have a strong, light chain, with sealed self lubrication that allows the chain to be constantly lubricated between the sleeve and the pin and that satisfies all demands, providing long life under all conditions for on and off road use. Excellent value for money chain. The new O-shaped seals allow the grease to remain between the sleeve and the pin, improving the lubrication of the chain, enabling it to last for longer. The optimum life of the chain is significantly increased with respect to chains without seals. Manufactured with high alloy steel, closed rollers and sleeve to improve resistance to fatigue. Specially treated pins to obtain greater resistance. All chains are pre-stressed to increase resistance to fatigue and elongation. Constant technical updating to guarantee the highest level of wear resistance under any situation. IRIS FB'RING SERIES Heavy Duty O’Ring Chains. Sports applications, sport touring. Teflon grease self-lubricated multi-lip seals. High precision link stamping. Steel alloy 42CrMo4. Steel internal link, rollers and gold outside.
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