Excellent condition original 65.5mm standard bore cylinder with slight wear only. Normal marks are present and offered with an excellent original 65.5mm piston - again with low wear. Ring grooves and ring stops are not eroded and this cylinder / piston combination could give years. Whilst it would benefit from a new set of rings, it is still capable of good performance as it is. alternatively a vapour blasted piston with new rings for an addition £62.00
Low bore wear permits use of the smallest rebore size increment thus extending the life.
Best of all is the excellent condition thread that is a weak point on many cylinders.