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byuboundNot only will it totally screw up the geometry and make your bike feel like a chopper
special-J^don't listen to them. Switching a 125(130)mm fork with a 160 will slacken the bike by about 1.5 degrees taking it from 68.5 to 67 (current sweet spot for aggressive trail bikes), hardly raise your BB since slackening counteracts the added fork height, and if the frame breaks, put the old fork back on before you bring it to a shop or take pictures of it.
kung_powpowDude whatever you do, don't do this. This is wrong in so many ways and will end up with you and your bike being broken. If your bike miraculously doesn't break, then you'll want to break it yourself after riding all that fucked up geometry.
Also, there are more consequences to this then you would think. Geometry affects the riding characteristics of the ENTIRE bike.
-First off, warranty will be voided
-Added stress on HT through the back of it, rather than up it
-Slacked seat tube
-Higher standover height
-Higher BB will result in reduced cornering grip, and weight further back
-Worse performance on climbs, flats, technical sections, and slow speeds since it steers slower and has a higher bar height
The only good thing out of this would be your bike will handle much better on fast, straight descents.