Darton, the original OEM sleeve supplier to Harley-Davidson, has designed a new sleeve kit for the V-Rod. With a bore of 4.25 and technology from the patented mid wet sleeve kit, this kit offers a superior high-strength sleeve with extra wall thickness in the combustion area and special cooling fins to absorb more boost and higher operating temperatures. It’s supplied with JE pistons at 12.0:1 compression, rings, pins and installation instructions along with two new finished honed sleeves, three O-ring grooves and "Viton" O-rings for superior water seal and flexibility. The price is $875.