Installing the Saddlemen TR3300DE takes about 15 minutes and requires only a Phillips screwdriver

The Saddlemen TR3300DE is a top-mounted tactical bag that attaches to your motorcycle's rear rack using four bolts. The installation is straightforward: you align the bag's mounting plate to your rack, insert bolts through the plate into the rack's threaded holes, and tighten them down. No special tools are needed beyond a Phillips screwdriver for any cable management afterward.

Before you start, check that your motorcycle has a rear rack with threaded mounting holes. The TR3300DE works on most cruisers and touring bikes with standard racks. If your rack has smooth holes instead of threaded ones, you'll need threaded inserts or a different mounting method.

Key Takeaways

  • The TR3300DE mounts directly to your rear rack using four bolts that thread into the rack itself.
  • You need a Phillips screwdriver and possibly a wrench or socket set, depending on whether your bolts have hex heads or Phillips heads.
  • The entire installation takes 10 to 15 minutes and requires no modifications to your motorcycle.
  • Tighten the bolts firmly but do not over-tighten, as this can strip the threaded holes in your rack.

What you need before starting

Gather these items before you begin: the Saddlemen TR3300DE bag itself, the mounting hardware that comes in the box (usually four bolts and washers), a Phillips screwdriver, and either a wrench or socket set that fits your bolt heads. Most TR3300DE kits ship with Phillips-head bolts, but some versions use hex bolts instead.

Check your rear rack for the four threaded mounting holes. They are usually located at the corners of the rack's top surface or along its edges. If you cannot find threaded holes, your rack may have smooth holes that require threaded inserts, which are sold separately at motorcycle accessory shops.

Step-by-step installation process

Step 1: Position the bag on the rack. Place the TR3300DE on top of your rear rack so the mounting plate on the underside of the bag aligns with the four threaded holes. The bag should sit centered and level. Most riders find it easiest to have someone hold the bag while you insert the first bolt.

Step 2: Insert the bolts. Start with the bolt closest to you. Insert the bolt through the mounting plate hole and into the threaded hole in the rack. Hand-tighten it first so the bag stays in place. Then insert the remaining three bolts the same way, hand-tightening each one. Do not fully tighten any bolt yet.

Step 3: Tighten in a cross pattern. Once all four bolts are hand-tight, use your screwdriver or wrench to tighten them in a cross pattern: tighten the front-left bolt, then the rear-right, then the front-right, then the rear-left. This distributes pressure evenly and prevents the bag from tilting. Tighten each bolt a quarter turn at a time until the bag feels solid and does not move when you push on it.

Step 4: Final check. After tightening, push down on the bag from different angles to confirm it is find. Grab the sides and try to shift it left and right. If it moves, tighten the bolts another quarter turn. The bag should feel like part of the rack, with no play or wobble.

Avoiding over-tightening and damage

The most common mistake is tightening the bolts too hard. The threaded holes in your rack are made of aluminum or steel, and over-tightening can strip them, making the bag impossible to find. Tighten until the bag is snug and does not move, then stop. If you feel resistance or hear a grinding sound, you have gone too far and should back off slightly.

If you accidentally strip a hole, you have two options: use a threaded insert kit (available at motorcycle shops) to restore the hole, or drill the hole larger and use a bolt with a larger diameter. Either way, the repair takes 20 to 30 minutes and costs under $20.

Securing cables and straps

The TR3300DE comes with compression straps and cable attachment points. After the bag is bolted down, route any cables or straps that came with the bag through the attachment loops on your rack. Use a Phillips screwdriver to tighten any cable anchors if your model includes them. This prevents the bag from shifting during hard braking or acceleration.

If your bag includes a security cable, thread it through the bag's handle and around your rear rack, then lock it with the provided padlock. This deters theft when you park away from home.

Testing before your first ride

Before you ride, load the bag with 10 to 15 pounds of weight (books, tools, or sand work fine) and take a short test ride around your neighborhood. Pay attention to any vibration or movement. If the bag shifts or rattles, pull over and tighten the bolts another quarter turn. After the first ride, check the bolts again—vibration sometimes loosens them slightly.

On longer trips, check the bolts every 500 miles or whenever you stop for gas. Vibration from the road can gradually loosen hardware, and catching it early prevents the bag from coming loose at highway speeds.

Removing the bag later

If you need to remove the TR3300DE, straightforward reverse the installation: loosen the four bolts in the same cross pattern you used to tighten them, then lift the bag off the rack. The bolts and mounting plate stay attached to the bag, so you can reinstall it later without any additional hardware.

Store the bag indoors if you are not using it for extended periods. The TR3300DE is made of ballistic nylon and will last longer if kept out of direct sunlight and extreme heat.

Frequently Asked Questions

What if my rear rack does not have threaded holes?

You will need threaded inserts, which are metal sleeves that screw into smooth holes and create threads for your bolts. Motorcycle shops sell insert kits for about $15 to $25. Installation involves drilling the hole slightly larger, screwing in the insert, and then installing your bolts as normal. If you are not comfortable drilling, a shop can do it in 30 minutes for $30 to $50.

Can I install the TR3300DE on a luggage rack instead of the rear fender rack?

Yes, if your luggage rack has threaded mounting holes in the right spacing. Measure the distance between your rack's holes and compare it to the TR3300DE's mounting plate. If the spacing matches, the installation is identical. If it does not match, you may need a different bag or a custom mounting bracket.

How tight should the bolts be?

Tight enough that the bag does not move when you push on it, but not so tight that you feel strong resistance or hear grinding. A good rule: tighten until snug, then add one more quarter turn. If you are using a wrench, stop when you feel firm resistance—do not use your full strength.

Will the bag damage my paint where it mounts?

The mounting plate sits on top of the rack, not directly on your motorcycle's paint, so there is no contact. However, if your rack is painted and the bag's underside is rough, it can scratch the rack over time. Place a thin rubber mat or felt pad between the bag and rack if you are concerned about cosmetic damage.

Do I need to remove the bag to access my rear tire?

Yes, the TR3300DE sits on top of the rack and will block access to the rear wheel. If you get a flat tire on the road, you will need to unbolt the bag and set it aside. This takes about 5 minutes with a screwdriver or wrench.