S&S Cycle 07-17 Easy Start MR103CE Chain Drive Camshaft Kit

This kit includes the S&S Cycle MR103CE chain drive camshaft, designed to bolt into a range of Harley-Davidson big inch engines from 2007 through 2017. It's a popular choice for those looking to get more performance out of their 103 cubic inch (CID) motor, whether it's running stock compression or slightly higher, up to 10.5:1. This camshaft is engineered to work well even with stock, un-ported cylinder heads, but it really shines when paired with performance heads like S&S's own CNC ported options.

What you'll notice with the MR103CE is an improved powerband, especially in the 2500 to 5500 rpm range. It's designed as an easy start cam, meaning it's intended to provide a noticeable boost in performance without requiring extensive modifications or complex tuning, though it's best suited for engines that already have intake and exhaust upgrades. This camshaft is a solid option for riders who want a more responsive engine for cruising and everyday riding, offering a tangible difference in acceleration and pulling power.

When installing, remember that this camshaft is designed for chain-driven systems. While it works with stock heads, for the best results and to fully unlock its potential, consider pairing it with performance cylinder heads and ensuring your intake and exhaust systems are also upgraded to match. This camshaft is not CARB approved and cannot be shipped to California.