I had a 65mm Easton Vice stem on my FR when first built so that might be a good option. Mine was 1 1/8" though I seem to recall they came in 1.5" as well. It's classed as a DH/FR stem so I'm sure it will be plenty strong enough for the ST.
I pick it up on monday, i'll post all the measurementsryates said:Ian, I would be interested to know what your XL measures. I am going to try a sp with layback and/or some longer stems and see how things feel. I like the idea of keeping the frame as small as possible on this kind of bike so I am hoping the above will prove successful without upsetting the handling.