Join Date: Apr 2006
Location: Kansas City, MO
Bikes: 29"ers, fixies, and 29"er fixies
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I'd say with a 0.1" difference in rake, you aren't going to change the handling of the bike too much. You may be using a fork with more or less travel. This means that you may have increased/decreased the trail of the bike. Both frames have the same head tube angle.
It sounds like you have put on a fork with more travel, which means that your trail has increased a bit. Bikes with larger trail #'s are more stable at high speed, but can sometimes be unstable at lower speeds (the wheel wants to "flop over"). Bikes with lower trail #'s are very stable at lower speeds, but can get a bit nervous at higher speeds.