The Custom Motorcycle Magazine

Race Tech Front And Rear Suspension Swap

Ridin' On Caddies

By: Jordan Mastagni, Race Tech, Photography by Jordan Mastagni, Race Tech
Race Tech Gold Valves 2007 Road Glide
The '07 Road Glide awaited the swap.

A motorcycle's suspension plays an integral role to the way the bike rides and handles. It's one of the essentials of a motorcycle. There are many suspension styles out there for various types of riding. And if you log a lot of miles and are looking for something that is going to make long hauls more pleasurable, Race Tech, located in Corona, California, may have what you need.

For the rear, Race Tech's Caddies Twin Shocks ($699.99) might be a good fit because they have been mitrogen pressurized and feature progressively wound, high performance, chrome silicon springs. Race Tech Gold Valves inside the shock body make up the damping system and can be custom valved to your specs. The Caddies are available in an assortment of lengths with chrome or black springs and feature adjustable spring preload. The shock shaft is hard-chromed, and the body is polished chromed steel with polished billet aluminum eyelets and spring collars. The seal head features a triple-lip design and the shaft bushing has been Teflon coated.

Race Tech Gold Valves Race Tech Front And Rear System
Here's the Race Tech front and rear system we used for this article. The Caddies (B) and the FLEK S3810 (A)(from left to right: two springs, Gold Valve Emulators, lowering springs, washers, and spacer on top).
Race Tech Gold Valves Race Tech Front And Rear System
Here's the Race Tech front and rear system we used for this article. The Caddies (B) and t

Up front, the company's FLEK S3810 front fork spring setup with Gold Valve Cartridge Emulators ($259.99) might be the way to go because the Cartridges claim to keep the front plush while still keeping it firm when needed. The Gold Valve Emulators are tunable valves that sit on top of the damping rods and are held in place with the main springs. This makes them both simple to install and completely tunable for all conditions and rider preferences. The springs in the kit are made from chrome silicon, and feature a high stiffness to mass ratio, and they're shot peened, heat treated and preset to prevent sacking (compressed, shorter than new). The kit also comes with a lowering kit to drop the frontend down 1 to 2 inches if so desired.

We had a '07 Road Glide that had plenty of miles logged on the stock suspension and was due for an upgrade. The swap took place at Anaheim-Fullerton Harley-Davidson and it was a relatively quick and easy installation procedure that can be done in a home garage. Service Technician Matt Cortez performed the install and it took roughly two hours to complete.

  • Race Tech Gold Valves Rear Installation
    The rear installation procedure was simple. Matt rolled the bike on the lift and placed a jack under the frame and lifted it until the back wheel wasn't resting on the ground. With the saddlebags off, Matt removed the two shock bolts from each shock and extracted the shocks one at a time.
    Race Tech Gold Valves Rear Installation
    The rear installation procedure was simple. Matt rolled the bike on the lift and placed a
  • Race Tech Gold Valves Caddies
    Next, Matt installed the new Caddies with the stock hardware and a dab of blue threadlocker and he was finished.
    Race Tech Gold Valves Caddies
    Next, Matt installed the new Caddies with the stock hardware and a dab of blue threadlocke
  • Race Tech Gold Valves Nacelle Bolts
    Moving on to the front, Matt loosened the instrument nacelle bolts, instrument cluster, ignition switch, and the entire instrument nacelle cluster to get to the fork cap bolts.
    Race Tech Gold Valves Nacelle Bolts
    Moving on to the front, Matt loosened the instrument nacelle bolts, instrument cluster, ig
  • Race Tech Gold Valves Front Wheel And Fender Removal
    Matt then removed the front wheel and fender in order to take the front forks out.
  • Race Tech Gold Valves Fork Cap Bolts
    To loosen the fork cap bolts he used the JIMS fork tool shown here (arrow). He also removed the axle holders from each fork leg. Then the pinch bolts were loosened from the lower tree and Matt slid the fork legs out one at a time.
    Race Tech Gold Valves Fork Cap Bolts
    To loosen the fork cap bolts he used the JIMS fork tool shown here (arrow). He also remove
  • Race Tech Gold Valves Fork Tube
    With the forks out, Matt disassembled each tube. First he removed the snap ring that sits atop the fork slider.
    Race Tech Gold Valves Fork Tube
    With the forks out, Matt disassembled each tube. First he removed the snap ring that sits
  • Race Tech Gold Valves Fork Leg
    Then, he removed the screw at the bottom of the fork leg and drained the oil.
  • Race Tech Gold Valves Fork Slider
    Next, the fork slider was taken off, and Matt disassembled the entire fork tube, removing all the internals in order to install the Race Tech setup. He repeated the same process for the other fork tube.
    Race Tech Gold Valves Fork Slider
    Next, the fork slider was taken off, and Matt disassembled the entire fork tube, removing
  • Race Tech Gold Valves Fork Tube
    Here's a look at how the Race Tech setup sits inside of each fork tube (left being the top, and right being the bottom: the spring, Gold Valve Emulator, stock damper rod, and the stock rebound spring (Matt retained the stock spring since he didn't want to lower the bike). If you wanted to lower the bike 2 inches, you would couple the stock rebound spring with Race Tech's rebound spring. If you wanted to lower the bike 1 inch, you'd only use Race Tech's dampening spring.
    Race Tech Gold Valves Fork Tube
    Here's a look at how the Race Tech setup sits inside of each fork tube (left being the top
  • Race Tech Gold Valves Spacers
    Next, Matt cut the spacers for each fork. The length of spacer needed for each fork was 3 1/2 inches from the washer sitting on top of the new spring to the top of the fork tube. He then cut two 3 1/2-inch spacers and removed the springs to install the fork oil. He collapsed the slider, then poured the oil in, pumped the slider up and down to suck out the air bubbles, then he used a fluid evacuating tool to get the correct amount of fork oil. Oil level measured 6.3 inches from top of fork tube (level varies depending on model). Lastly, he re-installed the spring, washer, spacer, final washer, and capped off each fork leg.
    Race Tech Gold Valves Spacers
    Next, Matt cut the spacers for each fork. The length of spacer needed for each fork was 3
  • Race Tech Gold Valves Fork Sliders
    Matt reinstalled the fork sliders, the dampener rod bolts, bushings, seals, and the snap rings, and checked the spring preload by pushing down on the forks. This ensures that the Emulators are seated properly. Everything checked out, so he re-installed the fork legs one at a time.
    Race Tech Gold Valves Fork Sliders
    Matt reinstalled the fork sliders, the dampener rod bolts, bushings, seals, and the snap r
  • Race Tech Gold Valves Axle Holders
    And then he buttoned up the axle holders on the end of each leg.
  • Race Tech Gold Valves Wheel Reinstalled
    Finally, Matt reinstalled the wheel, front fender, brakes, and the instrument cluster, ignition switch, and the entire instrument nacelle cluster up top. He then took the new Race Tech setup for a ride, and reported a stellar, smooth, cushy cruise, and he was more than happy with the new suspension's performance.
    Race Tech Gold Valves Wheel Reinstalled
    Finally, Matt reinstalled the wheel, front fender, brakes, and the instrument cluster, ign
By Jordan Mastagni, Race Tech
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