Alright, so let me tell you about getting this cargo box sorted for my Honda Trail 125. I love this little bike, it’s a blast for zipping around town and hitting some light trails. But, you know, carrying stuff? Not its strong suit straight from the factory. I was always trying to bungee cord things to that rear rack, and it was just a pain. Groceries were a nightmare, and even just stashing a rain jacket felt like a whole operation.

Finding the Right Box (Sort Of)
I didn’t want some massive tour pack thing, you know? It had to fit the vibe of the Trail 125. Something rugged but not too over-the-top. I spent a bit of time looking online, saw a few options. Some were super expensive, some looked flimsy. I ended up grabbing one that seemed like a good balance – sturdy enough, and it looked like it would mount up without too much fuss. Didn’t come with a fancy brand name or anything, just a solid-looking plastic box.
The Unboxing and Figuring It Out
So the box arrives. Standard stuff, cardboard, some bubble wrap. I pulled it out, and it felt pretty decent. Not too heavy, but not like it would crack if you looked at it wrong. It came with a bag of bolts and some metal plates. No instructions. Classic. Just a bag of hardware and the box. Okay, I thought, how hard can this be? It’s a box and a rack.
I took it out to the bike. The Trail 125’s rear rack is pretty straightforward, nice and flat. The box had some pre-drilled holes in the bottom, but they didn’t magically line up with anything specific on the rack. That’s where those metal plates and extra bolts came in, I figured. The idea was clearly to sandwich the rack between the box and these plates.
Getting Down to Business: The Actual Install
Here’s what I did:
- First, I cleaned off the bike’s rack. No point bolting stuff onto dirt.
- Then I plonked the box on top, trying to get it centered. Eyeballed it mostly. Moved it back and forth a bit until it looked ‘right’. You know the feeling.
- Once I was happy with the position, I held it steady with one hand and tried to figure out the bolt situation with the other. This was the fiddly bit.
- I dropped a bolt through one of the holes in the box, then from underneath, I had to line up one of those metal plates and get a nut started. Took a few tries. My fingers aren’t exactly tiny.
- Pro tip (that I learned the hard way): Don’t tighten any single bolt all the way down at first. Get them all started loosely. This gives you some wiggle room to make sure everything is aligned properly.
- I used four bolts in total, one near each corner of where the box made contact with the flat part of the rack. I put the metal plates underneath the rack, so the bolts went: box -> rack -> metal plate -> washer -> nut.
- Once all four were loosely in place, I gave the box a good shake. Made sure it was sitting where I wanted it and wasn’t crooked.
- Then I started tightening them down, going in a criss-cross pattern, like you do with lug nuts on a car. Just snugged them up bit by bit until they were all firm. Didn’t want to overtighten and crack the plastic of the box, but definitely wanted it secure.
The Result and First Impressions
Stepped back, took a look. Not bad! It actually looked pretty good, matched the utilitarian feel of the bike. I gave it a good solid tug in all directions – rock solid. Success!

The best part? The space! I can now easily toss in my helmet (a small one, mind you), or a decent bag of groceries, my rain gear, a toolkit, whatever. It’s made the bike so much more practical for daily errands. Before, a trip to the store was a backpack-only affair, and even then, it was limited. Now? So much easier.
It doesn’t feel weird when I’m riding either. I was a bit worried it might make the back end feel heavy or change the handling, but honestly, unless it’s absolutely stuffed to the brim with bricks (which I don’t plan on doing), I barely notice it’s there. It just works.
So yeah, that was my little adventure in adding some much-needed storage to the Trail 125. Totally worth the bit of fiddling with bolts. If you’ve got one and you’re tired of bungee cords, I’d say go for it. Makes a world of difference.