| Also known as | 16191 |
| Listed in parts books | Not catalogued by year yet |
RING SET TRIUMPH 650 +.040 - GRANT
Grant +.040 in. oversize piston ring set for the Triumph 650 twin.
This is a piston ring set for the Triumph 650 twin, machined to a +.040 in. oversize by Grant. This set is meant for a cylinder that has already been bored out to that oversize spec during a rebuild.
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Ring sets like this one bring the piston back into proper clearance with the bore after it's been machined larger to clean up wear or damage. Because it's cut to a specific oversize, it only works with a bore that has actually been taken out to +.040 — not a standard bore.
The part also carries a 16191 reference number, so if that's what's printed in your parts book, this is the same physical item. Check your bore size before ordering since the +.040 spec is not adjustable after the fact.
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