Originally Posted by chimblysweep
don't do it. just cuz you can doesn't mean you should.
i have owned two 3rensho frames that people did just that with. it collapses the seat tube over time and you'll never again be able to run a 27.2. that and it'll make the seattube more oval, depending on the clamp.
the voice of reason (above). bush mechanics is fraught with peril.
how hard is it to get a 27.2? Its THE most common post going.