On Mon, 2011-11-21 at 08:47 -0600, Tim McNamara wrote:
> Glad this worked out for you, and it's nice to have a situation for 
> comparison where there is one primary variable different.
> 
> But you mention something that I have read elsewhere, which is that "high 
> trail" bikes (around 60 mm) can't change direction in mid turn.  

No one said that.


> This is not my experience; indeed the best handling bike I have ever ridden 
> is my Ritchey road bike, which should have around 60 mm trail given its 73 or 
> 73.5 head angle and 45 mm fork offset on 700 x 25 mm tires.  I can easily 
> flick the bike around objects in the road while cornering fast downhill.  
> Indeed, if one couldn't do that, this sort of geometry would not be the 
> standard for professional racing bikes. 

There's a relationship between geometric trail and tire width: the
narrower the tire, the less the pneumatic train, so the more geometric
trail you need.  It's true in the opposite direction as well: the wider
the tire, the more pneumatic trail, and so the less geometric trail you
need.



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