WK1657 883 to 1200 XL conversion piston kit. +.020"

This Wiseco conversion kit is the industry standard for waking up an 883 Sportster. Sold as a kit, it allows you to convert your 1986–2022 XL883 to 1200cc by re-using your stock cylinders, though 2004-up models require 1200cc cylinders as the 883 liners are too thin to bore. The kit includes forged reversed-dome pistons, rings, wrist pins, and circlips, designed to work with your stock 883 heads without modification. With a 9.5:1 compression ratio, you can expect a significant power increase. These pistons are weight-matched to stock, so no rebalancing is required, making this a straightforward performance upgrade for your Sporty.