Join Date: Aug 2005
Location: Pittsburgh, PA
Bikes: '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
Mentioned: 4 Post(s)
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Quoted: 180 Post(s)
You go by the diameter of the outside of the steerer. I'm almost certain your current fork steerer is 1-1/8" and the Easton should be purchased to match but measure the actual steerer to be sure.
BTW, for the new fork, cut the steerer long enough to project above the stem and use a spacer above the stem to establish the needed 2-3 mm headset adjustment gap. If you cut the steerer so it projects 2-3 mm above the stem, you would then use a 5 mm top spacer. This assures the steerer tube is fully supported by the stem, which is a very good idea with carbon steerers.