www.DRRiders.com

He recapped it in the ending.....stability has many more variables to just explain simply.

I can agree with some of what he's saying from experience........ if you keep dropping the forks in the triples.....you'll decrease trail and eventually cause the bike to be unstable at speed. If you go tooo far and have tooo much weight on your front tire --- at 80+ you can wiggle the bars and put the bike into a weave. So, in essence..... having more trail, increases stability.....but as a negative benefit, you decrease your steering speed.

You hear racers talk about this....... they want their bikes to turn quick......but at the expense of making their bikes unstable......and thus have to mount a steering damper to compensate.

What we don't know about the people who say that 17" front tires are 'twitchy' --- are they just saying that because they just dropped their bike on its nose by a couple inches by dropping the tire size? Probably.

The other factor is that were not comparing apples to oranges....... we would need to compare a 21" rim the SAME WIDTH as the 17" rim. To compare all those factors.......

With all that said though........

Saying -- "I don't see a reason why you'd go with a 19" front", is just ridiculous.

The decision to drop the front a 'medium' amount to quicken the steering (but not dropping the bike to the full 17" front amount), is reason enough alone. It will be the perfect balance of quicker steering VS. stability.

What you're describing is generally referred to as a "tankslapper"... when the front end goes into an uncontrollable lock to lock shimmy or wobble . No fun.

By weave I mean......a high-speed weave (slow oscillation)..... which could be the on-set of a full-on tank-slapper. (flutter or wobble)
Weave's are pre-cursers to being put on your ass........

Were all on the same page here.....