You could also use a saddle-mount, or steerer top-cap mount if you don't want to potentially damage your frame (cosmetically) with jubilee clips.
http://www.charliethebikemonger.com/king-cage-top-cap-cage-mount-2587-p.asp http://www.wiggle.co.uk/tacx-bottle-cage-saddle-mount/
@pifko started
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You could also use a saddle-mount, or steerer top-cap mount if you don't want to potentially damage your frame (cosmetically) with jubilee clips.
http://www.charliethebikemonger.com/king-cage-top-cap-cage-mount-2587-p.asp
http://www.wiggle.co.uk/tacx-bottle-cage-saddle-mount/