Size: +.050"
883cc Evolution:. Hastings #6198 moly-faced replacement rings for O.E.M. pistons. Standard bore is 3.005". Fits 86-20 Sportster. Sold individually per cylinder. 1000cc Iron Head:. Hastings #7003 moly-faced replacement rings for O.E.M pistons. Standard bore is 3.005". Fits 72-E85 Sportster. Sold as set of two cylinders. 1200cc:. Fits 04-20 Sportster. Sold individually per cylinder. 1200cc Evolution:. Hastings #6164 moly-faced replacement rings for O.E.M. pistons. Standard bore is 3.4978". Fits 88-03 Sportster. Sold as set of two cylinders.
Fitment: 1000cc Iron Head, +.050"
