Norton 750 Commando piston RINGS plus .020 20 over ring set Grant USA Atlas Type:New This product is New -

This product is New - NOS Tri-Core Triumph piston rings set 650 std unit 1963 & up

one piece forgings with profiles that provide excellent flow characteristics

Manufacturer Part Number: 57-1370

This product is New - Triumph 250 BSA B44 Valve Guide set 1968 - 1970 70-8225

Norton 750 Commando piston RINGS plus .020 20 over ring set Grant USA Atlas Type:New This product is New -You will get the brand new ring set that is pictured. Norton Commando Atlas 750 plus . 020 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