If you have a triple, you'll be fine. Jess pulled over 12% on Sugarloaf Mtn a few weeks ago, and this is her first full season riding. I think you'll be ok. Just pace yourself, and start off in an easy gear rather than chasing the gears down as you climb.
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Current Stable: Trek Emonda SL - Trek Top Fuel 8 - Scattante XRL - Jamis Dakar Expert - Trek 9700 - AlpineStars Al Mega