Mudguards

I’m still not having any luck making the holes bigger.

Files and drills don’t seem to touch them! :(

Drill from a (battery-powered) drill had minimal effect, one of my files did ok... could always cut a v with a hacksaw, then file it out? It's a total pain, I know.

Preferred method for mounting a pair of sks with a downward pointing eyelet?
Logic says cut the L bracket off the sliding bridge, drill it and pop big washer on the inside of the guard?

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Drill the rivets out and use the spacers from v brake blocks to space it out

Or perhaps a P-clip around the bridge and attach the L-bracket to that?

All that, and something rubbery™ or leathery™against the fender.

Drill hole in fender, bolt straight to the frame.

Thought as much. Do I want to retain the sliding bridge to stiffen everything up or is washers/rubbery thing sufficient?

Nah should be fine. A steel washer on the inside, and a rubber washer between the guard and the frame are probably good ideas.

Does anyone know where you can get pclips for aero forks? I’ve plenty of room to get a set of guards mounted but no mounts and I’d prefer not to use the through qr mounts if possible.

@alan_tbt - ebay, you can get ones that have rubber surrounded by metal, the metal is squashy so can be "moulded" a little to fit the aero shape - i forget the buyer i had, but theres hundreds out there with different sizes....

Any good bodge ideas here? Sks chromo plastic guard. The plastic sliding bridge support is too thick to fit under here without the guard rubbing against the tyre. Is the stainless variety thinner? Or any other zip tie style bodge I can do?

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This? https://www.sjscycles.co.uk/mudguards/gilles-berthoud-fixing-bracket-set-for-rear-fender-on-brake-bridge/?geoc=US

Because it pushes against the underneath of the brake?

Yep

Can you not just turn the mount around so it goes under the bridge facing forwards rather than under the caliper facing backwards?
Or use a washer and mount it behind the bridge?

Cheers. Do nd hundreds.

Can you not just turn the mount around so it goes under the bridge facing forwards rather than under the caliper facing backwards?

Tried that already, same issue. The bottom edge of the brake bridge is pretty much exactly in line with the caliper

Or use a washer and mount it behind the bridge?

That looks a bit sketch no? Not sure I trust braking load to go via the sliding bracket. Also my bracket is plastic.

Yeah looks sketch, just spitballing. I'd be happier with a metal one if I was doing this though. No reason why a metal bracket with a washer each side is any less secure than without. But wouldn't with a squishy plastic one

The mount facing forwards, behind the bridge, not attached to the brake, cable tie each side going over the bridge and round the seatstay?

https://problemsolversbike.com/products/accessory-mounts/sheldon_fender_nuts_-_10108

Problem Solver Fender nuts allows you to bolt into the back side of the recessed nut so you can mount on the reverse of the bridge.

Unless I've misunderstood whats going on here ...

Could also do something fairly elegant with a drill (two holes) and two cable ties;

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Nice one. A proper bodge but it will do the trick.

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Why not just secure it with the nut that the brake caliper screws into? Would save using cable ties!

It's a recessed nut and the bracket is made of plastic. Would be instant death.

You could use a washer or two. Those plastic brackets are pretty solid, far more so than those shitty folded steel ones. I put a 90 degree bend in one using my kitchen hob, so I could mount it using a hole underneath the brake bridge; held find!