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Pop riveter issues

If you use a piece of metal tube with ends that are square to the axis the rivet should pull up true. You could probably get away with using a stack of washers threaded over the rivet shaft if you can’t find a piece of tubing.

Try it out on a bit of scrap sheet first if you’re not sure about it.
If I use washers will the hole in the washer have to be a smaller diameter than the flange on the rivet?
 
Can you rivet through from the other direction, or does it have to be this way?
No because it’s a down tube on a bike frame.
Have you tried the tube trick as per st13phil?
No. My method was to grind down the grey nozzle.
Or dare I suggest (at your risk) just pulling the rivet through with the head of the rivet gun restrained by the cable stop?
I think it’ll be a problem because the cable stop is rounded.
 
My method was to grind down the grey nozzle.

This. Pop riveters are normally pretty cheap so I'd just attack it with an angle grinder till it clears the cable stop. Looks like you wouldn't have to take much off, so unlikely to affect the riveter other than cosmetically.
 
This. Pop riveters are normally pretty cheap so I'd just attack it with an angle grinder till it clears the cable stop. Looks like you wouldn't have to take much off, so unlikely to affect the riveter other than cosmetically.
IMG_4820.jpeg
Let’s not speak too soon!!
 
Oops!

You only needed to shave a tiny bit off one side?!

1724787970097.png
 
If I use washers will the hole in the washer have to be a smaller diameter than the flange on the rivet?
Yes, just large enough to go over the rivet shaft.

But I see you have a separate problem!
 
Tap the hole in the bike frame and use a small set screw instead of a rivet?
 
Tap the hole in the bike frame and use a small set screw instead of a rivet?
I’m thinking of that. A dab of epoxy and a couple of self tappers. I’m concerned that they might not hold because the frame is carbon.
 
Yup , that was always going to happen. You might want to search 'clinch nut tool' . Might be a bit over the top though. I have used various types , usually in thin aluminium box section .

1724788262770.png 1724788298035.png
 
I’m thinking of that. A dab of epoxy and a couple of self tappers. I’m concerned that they might not hold because the frame is carbon.
I've tapped into fibreglass successfully, just don't over tighten the screw. And I'd probably drill and tap rather than use a self tapper
 
I'm not sure how long your rivet tails are, but could you use that convenient thread adjustment screw (with a hole down the centre) as a handy 'pipe' as per st13phil's suggestion?

Obviously unscrew and remove first, then place that over the rivet tail and pull through the screw?
 
Sorry if I’ve missed something, but is that setup meant for pop rivets. I’d be looking at mushroom rivets, possibly with a washer on the collapsible part.
You’ll need a pair of dies? Don’t know of that’s the correct term but you hammer one and the other takes the blow.
If that makes sense.
 
Sorry if I’ve missed something, but is that setup meant for pop rivets. I’d be looking at mushroom rivets, possibly with a washer on the collapsible part.
You’ll need a pair of dies? Don’t know of that’s the correct term but you hammer one and the other takes the blow.
If that makes sense.
With mushroom head do I need access to the back of the rivet? If so, I can’t get access. See the photo below to show where the cable stop is positioned IMG_4825.jpeg
 
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I suggest bonding it or using rivnuts…
 

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