GPR Stabilizer Install Part 3 | Tech

Stabilizing Stability

Harley GPR stabilizer

Install the GPR top triple tree. GPR trees come in a raw and black-anodized finish. We powdercoated this one so it matched his existing lower triple tree.

Words: Chip Kastelnik Photos: Mikey Van Senus

We left off in Part 2 of this install with installing the frame clamp and the dust shield. Now we're putting the trees on before moving to the riser bolts.

For those of you just joining us, GPR stabilizers have been in the motorcycle industry for a very long time. If you've done any real work on a dirt bike, quad, ATV, or sportbike, chances are you know that the GPR stabilization components are second to none.

A few years back, GPR decided to see if it could appeal to the H-D market by trying to help relieve the frustrations of high-speed wobbles on XL and Dyna models. The crew at GPR had to make a kit that could allow the GPRV4 to mount easily yet remain as close to OEM specs as possible. The end result was a kit that consists of a triple tree, damper, and frame clamp that is easy to install, made of top-quality materials, and works like no other steering stabilizer system.

Harley GPR stabilizer

Using a rubber mallet and some silicone spray, tap the tree back onto the fork tubes.

Words: Chip Kastelnik Photos: Mikey Van Senus

Harley GPR stabilizer

Pictured here is the top triple tree and frame clamp installed on the FXR chassis.

Words: Chip Kastelnik Photos: Mikey Van Senus

Harley GPR stabilizer

Install the OEM top triple-tree nut in the GPR triple tree.

Words: Chip Kastelnik Photos: Mikey Van Senus

Harley GPR stabilizer

Finger tighten the bolt; we will be tightening later on when we do the fall-away procedure.

Words: Chip Kastelnik Photos: Mikey Van Senus

Harley GPR stabilizer

Place a few drops of blue Loctite onto the damper tab holder bracket screws.

Words: Chip Kastelnik Photos: Mikey Van Senus

Harley GPR stabilizer

Using a 5mm Allen wrench, install the damper tab holder into the frame clamp.

Words: Chip Kastelnik Photos: Mikey Van Senus

Harley GPR stabilizer

Remove the frame bracket pinch bolt from the front of the bike, and put a few drops of blue Loctite onto the bolt and reinsert.

Words: Chip Kastelnik Photos: Mikey Van Senus

Harley GPR stabilizer

Place the handlebars onto the top triple tree.

Words: Chip Kastelnik Photos: Mikey Van Senus

Harley GPR stabilizer

Insert the riser bolts through the lower riser bushings and into the handlebars.

Words: Chip Kastelnik Photos: Mikey Van Senus

Harley GPR stabilizer

Once the bolts are snug, remove one bolt at a time, put some blue Loctite on the thread, and reinstall into the riser bushings.

Words: Chip Kastelnik Photos: Mikey Van Senus

Harley GPR stabilizer

Install the riser bolts and torque to factory specs.

Words: Chip Kastelnik Photos: Mikey Van Senus