Forking Confused

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Manglier
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Joined: Sun Nov 14, 2010 11:30 am

Forking Confused

Postby Manglier » Thu Feb 21, 2013 20:28 pm

I have a well maintained 2007 Giant TCR Advanced SL that I find way too twitchy on fast descents. It has a 73Deg head angle and I believe the fork rake is around 45mm. I want to swap out the forks to make the ride more stable. Should I be going for a 43mm or a 40mm rake to increase the trail and thus slow down the steering? I am not troubled by toe overlap.

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Monty Dog
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Joined: Thu Dec 14, 2006 14:31 pm

Re: Forking Confused

Postby Monty Dog » Fri Feb 22, 2013 16:12 pm

Road bikes are generally 43 or 45mm offset, and it's likely that -2mm will make much difference but without any firsthand experience of doing this with your frame, it's all hypothetical.
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smidsy
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Re: Forking Confused

Postby smidsy » Sat Feb 23, 2013 20:24 pm

How long is your stem? Short stems can make steering 'lively'.

Fork offset is normally only altered as bike frames go up in size and is unlikely to change the steering characteristic.
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