| Also known as | 18-89102R |
| Listed in parts books | Not catalogued by year yet |
RING SET,TAIWAN T150+.020
Piston ring set, .020 oversize, for the Trident-family T150 triple.
This is a piston ring set for the Trident-family triple, listed in the .020 oversize. The catalog line ties it to the T150, and the tag on the box notes Taiwan manufacture as the source for this particular set. It also carries an alternate part number, 18-89102R, if that's the form printed in your own parts book.
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A ring set like this is what you'd reach for after a rebore, when the standard-size rings no longer seal properly against the cylinder wall. The .020 oversize means it's matched to a bore that's been taken out that much over stock, so it only makes sense paired with pistons cut to the same oversize.
We don't have more detail on this one beyond what's in the catalog entry. Give the shop a call and we can confirm the ring set matches up with what you're rebuilding before you order.
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