How To :19 tooth front, and now, a 37 tooth rear sprocket on 2013

[ChipBeck_imp]

This is similar to my question on my follow on 35T thread.

Question for any that may know, I was planning on breaking the 530 chain, shorten, and add a new master link, but the stock 530 appears to "works" with the 19/37 combo. "Works" - from the pics, it appears the rear axle needs to be moved aft 3/8" to 1/2" for proper chain tension. How much is then available for future use as the chain stretches?

Is there an equivalent new chain available for my 19/35 combo that would eliminate the need to break the chain - 520, 510?

Chip, how long have you had your sprockets? I assume they are steel & no Rust is visible.
Were they zinc plated?

RBike,

I think I've had that sprocket on for about a year. I don't know for sure but I thought it was stainless steel and it's clear coated as well but obviously clear coat would come off the teeth immediately. There is not a spec of rust on them. There is no master link on a CB11 chain. It is an endless chain.

Chip