The stock production 39mm front ends on Dynas, FXRs, and Sportys need a little help if you want to get some better performance out of them. Hell, even changing the weight of the oil used internally can help with getting them to react better on the road. Luckily for us (and you) there are a ton of performance goodies on the market, and taking advantage of some such items will make your Harley ride much better and look good while doing so. We are building a stiffer and better 39mm front end with the help of a set of Chassis Design Company triple trees, Gold Valve emulators and a spring kit from Race Tech, a set of The Speed Merchant’s preload adjusters, and some oil from Bel-Ray. We will be putting it all together with the right tools for the job thanks to Jims USA and its line of specialty tools. Here’s how we did it.