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Not a good idea. I think 4cm is the maximum anyone will recommend for spacers. If you have to much, you are creating a long cantilever from your head tube to your bars. Thus, big bending moment in the steerer tube. You are risking it yielding and failing all together.
Get her some risers. Maybe consider a 17 degree stem pointing upwards too to reduce the stack some more.
Hovis-
Not a good idea. I think 4cm is the maximum anyone will recommend for spacers.
Tell that to Super High Stack Courier Guy.
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If you have to much, you are creating a long cantilever from your head tube to your bars. Thus, big bending moment in the steerer tube. You are risking it yielding and failing all together.
Assuming the hand position is the same, the moment is going to be the same, no?
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I think 4cm is the maximum anyone will recommend for spacers
Best to ask the fork manufacturer - lightweight all-carbon forks often come with restrictions in the 40-60mm range, but the stock Pomp fork has a burly enough steel steerer. Bearing in mind than I have a 14cm stem on mine and 30mm of spacers under it, and I weigh 95kg, Tababa's girlfriend isn't likely to give the steerer a hard time unless he's a serious chubby-chaser.
All the other suggestions still apply - get a stem with more rise, and bars with more rise if possible, but only to make the whole thing lighter, stiffer and more pleasing on the eye. The fulcrum against which we're all trying to snap off our steerers is the upper headset bearing, and the only way to move that is to buy a bigger frame.
bothwell
NotThamesWater
gbj_tester
I've built my girlfriend a Pomp, and while setting up the cockpit she liked it best with a stack of spacers way up, a higher stack than the headtube itself, to give her a sit up and beg style position.
Is there any reason not to leave it like this if she likes it?
Apart from offending peoples eyes it should be fine right, it won't cause structural issues because of a lever effect on the headtube?