Chain wear/ stretch

Douglass Harroun · Jan 16, 2021

I've got a 1971 Triumph ( and Commando) Removed rear chain and found 6 mm stretch. Compressed 1676 mm, stretched 1682 mm. .3% stretch. Trying to see if this is considered worn out. New chain measures 1676 mm. Should I save it for shop use or re-lube and re-use?
Doug

Craig · Jan 16, 2021

What manual say , go with that

Time Warp · Jan 16, 2021

I thought (without a pin distance measurement ) the check was on the rear sprocket and trying to lift the links or the banana sideways check.

Torontonian · Jan 16, 2021

Time Warp said:
I thought (without a pin distance measurement ) the check was on the rear sprocket and trying to lift the links or the banana sideways check.

Stretching is good for cats. It's wear plain and simple. I use worn chain to draw the fresh new chain over the front sprocket. After observing it for wear with a shop light too.

Time Warp · Jan 16, 2021

I looked in the manual.

2%.
Replace in 2015.

Chain wear/ stretch

Douglass Harroun

Craig

Time Warp

.......back to the 70's.

Torontonian

Time Warp

.......back to the 70's.

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