| Also known as | R26730 |
| Listed in parts books | Not catalogued by year yet |
RING SET NORTON 850 STD
Standard-bore piston ring set for the Norton Commando 850, catalog number JRCNOR850R (also R26730).
This is a ring set for the Norton Commando 850, standard bore, catalog number JRCNOR850R with the older reference R26730 also on file. It's a Norton part, not a Triumph part, and it belongs in the piston/cylinder area of the 850cc Commando engine, not on any of our unit or pre-unit Triumph twins.
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A ring set like this covers the compression and oil control rings for one piston at standard size, the dimension a stock, unbored cylinder takes. If you're rebuilding a Commando top end and haven't had the barrels rebored, standard is the set you want.
We don't have much more detail on file for this one beyond the description and the old reference number. Give the shop a call before you order if you want to double check bore size and application against what's actually in your cylinders.
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