Chains › CHAIN SRX2 X-RING 520-150L GLD Image 1 of 1 CHAIN SRX2 X-RING 520-150L GLD $187.95 SRX2 series chains are an excellent value for any street machine.Quadra X-ring design reduces friction and increases chain life 1.5-2 time longer than standard o-ring chain.Feature lightening holes on side plates for 3% weight reduction Quantity: Purchase Added! SRX2 series chains are an excellent value for any street machine.Quadra X-ring design reduces friction and increases chain life 1.5-2 time longer than standard o-ring chain.Feature lightening holes on side plates for 3% weight reduction