Feedback on JT Z1R and Tsubaki Alpha XRG heavy duty gold chains, miles?

[Val]

Hi All,

Does anybody has used JT Z1R super heavy duty gold chain, any feedback about the quality and how many miles I can expect from it? Does it stretch too much in time?

http://www.adrenalin-pedstop.co.uk/p-Z1R_JT_Super_heavy_duty_ORing_gold_chain_530__110_links-6750.aspx?gclid=Cj0KEQjwk7msBRCJj67khY2z_NIBEiQAPTFjv-7Rn4fy4XjjaH66ik3GQVm9Po1Ezg70_sZ4oGy9858aAu9I8P8HAQ

Do you reckon it is better than Tsubaki Alpha XRG chains? Tsubaki Alpha is rated for 20k miles.

Does anybody has used Tsubaki Alpha XRG heavy duty gold chain, any feedback about the quality and how many miles I can expect from it? Does it stretch too much in time?

http://www.bandcexpress.co.uk/buy/Tsubak...10.953#eq1