Hey... this is just a theoretical question (which means... instead of biking around town and picking the brains of dealers and repair shops I ask the question to the general community)
I know that touring/commuting bikes generally have slacker geometry and longer wheel base. This makes them more stable over the long haul and with loads. Less rake on the fork makes a twitchier, more responsive bike (racer, etc) I assume degree of angle on the rear triangle adds to this ( and to the overall wheel base size)
I have a Jamis Aurora (2002 frame I believe). I like it. Steel is real. Brooks Saddle, EAston EA70 post, NItto Stem, Nitton Randonneur bars... I've customized it to my liking. it's working. Solid. Commuter and ready for some touring.
At times it seems a tad twitchy... I haven't measured the exact degrees of rake and tube lengths, but...
How feasible is it (at some point, likely not this season) to improve the stability by going to a different fork? Are decent touring steel forks available and, assuming standard diameters on the head tube, is it easy to do? HAve you done it?
Also, another theoretical question:
How much does one gain with each degree of change... etc
don't know if I said this correctly... just tossing it out there for discussion.
I'm not unhappy with my ride... just wondering