Got My Nuts Stuck Deep

[MahatmaAndhi]

I'm trying to get the butt-stop off my seat for more leg room.

These three screws hold it in place. One came off very easily, but the other two are just spinning freely.
There's little room to get behind them to try and get a grip on the thread as they're recessed. The depth is around the same size as the length of the bolt.
On the other side, between the stop and the seat, there's no room to fit needlenose pliers to try and hold the stem.

I'd like to re-use this again maybe one day. Or if I ever sell the bike, then I'd like to reattach it, so I'd prefer not to maul the shit out of it.

Any ideas?

https://i.imgur.com/mSMSf4p.jpg
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2008 Aprilia Sportcity 250

[neptune8]

First clean the bolts with a wire brush. Are the bolts badly corroded? I they are apply a few drops of white vinegar to the threads and allow to soak in. You couls use penetrating oil. Brake fluid is a brilliant penetrating oil but avoid getting it on paintwork. Put a spanner on the nut, and sharply tap it round with a light hammer. If there is thread projecting beyond the nut, try gripping it with pliers, being careful not to damage the threads.
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Enjoy yourself, its later than you think

[groovylee]

[groovylee]

another option would be to dremel the nuts off, and just replace them in future? go down one side of the thread, then they'll come off, leaving you with just three nuts to replace.
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Past - 1988 honda revere 600, 1996 kawasaki gpz500s, 1999 Yamaha R6

Current - 2002 Aprilia RSV1000R & 1999 Kawasaki ZX6R

[MahatmaAndhi]

Thanks for the replies.
I think that's the route which I might have to take. I had a look at nut breakers, but I don't think it'll fit in that recess enough to get a grip.
If I can find someone with a Dremel to borrow then I'll have a crack at slicing it in half.
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2008 Aprilia Sportcity 250