Top quality from Kibblewhite engineering! Pair of valve keepers (enough to fit one valve) for most unit construction BSA 250 500 & 650 twins and triples including A65 Lightning Thunderbolt A50 Wasp Hornet Royal Star B25 Starfire B44 441 Victor B50 etc. These also fit Triumph TR25 250 singles. Heat treated for longevity; the best available.
Additional BSA engine spares are available here
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