I have some holes in my Frame, which I'd like to plug.
Many of you might also have holes.

Unlpuged Frame holes

Water/wet is not much of an issue round theses parts, but I'm not crazy about the idea of dust/dirt accumulating inside the frame.
Many of you, however, are in areas where weather/rain/puddles/mud are a common thing. Or maybe have converted to E-shifting and now have open ports/holes
Any of you plugged unused Frame Holes? With what?
These happen to be on my gravel bike, which is 1X, so has an open cable port on the right side of DT.
Also have holes on the Fork, which would have been used for rim brakes... I don't think the fork blades are 'closed' to the crown area, so any moisture/dirt/mix will accumulate down in the blades.
As you can see, they are already gathering dust/dirt thru these open ports...
What are you pluggin your open ports with? if you're pluggin them...
Ride On
Yuri

whatever you choose to use i'd be inclined to make sure it is reversible.

as a quick term solution i'd use electrical tape cut into a nice oval shape for the example given while i ponder a more aesthetic solution.

Bubs Frame Plugs | Accessory Mounts | Problem Solvers (problemsolversbike.com)

Converted a bike to a 1x and had an frame plug with cable hole left over.

Some epoxy and paint and viola! frame plug sans hole.

And if you ride fast enough, no one can see the imperfections!

A Di2-ready frame should come with plugs for the ports in the event that you are not using a Di2 groupset. Beyond that, I would hesitate to plug any holes -- especially in a steel frame, where they might be useful for draining out water that inevitably gets inside a frame after a rainy ride.

I’ve got a few. But I don’t need them plugged.

In addition to the Problem Solvers plugs suggested above, a lot of hardware stores (in my case Tru Value) have racks of a variety of fasteners, cabinet hardware, etc. etc. including a variety of rubber and plastic plug like things. Worth checking out.