Quote:
Originally Posted by ridethecliche
Update: my measurement gives me approximately 400mm for axle to crown with a rake of 50 on this fork.
How would I keep the geometry similarish or the same if I move to something with a lower rake as most things seem to be, including the Enve allroad options.
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http://yojimg.net/bike/web_tools/trailcalc.php
Your size medium frame has a 73 degree hta.
So 73deg hta, 50mm rake, and 35mm tire = 55mm of trail.
If you get a fork with 400mm A-C and 45mm of rake and use a 35mm tire, you will end up with 60mm of trail.
If you get a fork with a different A-C length, that will change the head tube handle and the bottom bracket height.
A 10mm difference in A-C results in about .5degree of head tube angle change.
So a fork with 385mm A-C will make the head tube angle about .75degree steeper.
^ all that to say that a fork with 385mm A-C and 45mm rake will adjust your HTA to 73.75 and you end up with the same trail number as your current fork- 55mm of trail.