Norton 850 Commando piston RINGS plus .020 20 over ring set Grant USA 77.5MM Type:New This product is New -

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Norton 850 Commando piston RINGS plus .020 20 over ring set Grant USA 77.5MM Type:New This product is New -You will get the brand new ring set that is pictured. Norton 850 plus 20 This is a Grant ring set Made in The USA. Any questions contact us. Piston ring gap: The new industry standard for British motorcycles is to gap the rings at . 020 New independent lab tests and studies (in the USA and England) show that any gap between . 024 to . 010 is efficient, and does not show more oil loss than normal gaping at . 010 to . 014 or does not show any less