Rene:
You are indeed brave to post about your experiment, and I hope
everyone else reviews it thoughtfully.
Something we all need to keep in mind is that as brilliant a designer
as Grant is, every bike is the sum of a large number of compromises.
The fewer the compromises, the more specialized and hence less
versatile a bike is. For me, one of the major attractions of
Rivendell is the versatility of my Atlantis. There just isn't any
ride I would hesitate to do because "my bike can't do that".
This confidence building versatility has also led me to a lot of "why
not?" adventures in loading, and I'm probably not alone here. It
would be impossible to design a single bike that would be equally
competent handling all the possible combinations of front, rear, high,
& low loading. Rivendell, IMHO, does it better than most, probably
because they actually think about it, load their bikes & go banging
about the hills in the real world.
I took delivery of my Atlantis in early 03, and it's my go-to bike for
everything. Over the years, I came to prefer having my basic, daily
stuff in a front bag, first a Riv Hobo, then an Acorn Boxy Rando
(holds more). It seemed that with the front bag fairly well stuffed,
the bike had a bit of a wander when climbing at low speed, nothing as
you describe but an irritating tendency to want to go somewhere else.
I always dismissed it as the load and my inattentiveness. Stumbling
into some low trail discussion or article, it seemed like maybe there
was room for improvement, at least to my tastes.
When touring with a load, the bike was a bit dodgy with everything on
the rear, the problem being an infrequent but unpredictable shimmy.
Spreading the weight around among 4 bags restored stability. Since my
lodging load is 2 bags, on-tour ezperiments with them front vs rear
showed front to be a more stable location. However, the previously
mentioned "wandering" was more annoying with all the weight up
front.
Tom Matchak also came to my attention courtesy another list member,
and built the same fork for me. Since my issue was not as dramatic as
yours, I was only hoping to get the same stability with a front load
that the bike had with no load. The result meets expectations. The
40 mm trail is not a relgious experience but a rather subtle change
that solved my personal problem without disturbing anything else about
the bike.
Note that I did not leap into this without a good deal of second
guessing and self-argument. The Atlantis is a great bike and I did
not want to screw it up. Fortunately, the results justified the
deliberations. It would not surprise me if another Riv owner rode my
bike & hated it. It just works for my & my quirky habits.
Side bar re: shimmy. If you get shimmy, don't assume the 40 mm trail
is the cure. On a recent S24O (2 bagger) I rode with the bags in
front on the way out and the rear on the return. On a straight,
level, smooth bike trail at perhaps 12 mph, I got a nasty shimmy when
I had to stop quickly, with the load in the rear. After that, all the
way home, I tried to induce it again with no success. The typical
"tail wag when standing" is still there. I've been experimenting with
trying to move the load lower & as far forward as practical. I may
need a change of rack (currently using the Nitto Big Back rack) to get
things where I want them.
Funny that you want to paint both bikes. I really like the gray &
kidney bean red Hunq paint scheme, and have considered doing that on
my Atlantis. It's spent enough time traveling that I'm thinking new
paint for it's 10th birthday would be nice. Of course, my wife tells
me "it's you; sorta old & beat-up looking". I think there's a
complement in there but I could be just wishing.
dougP
> new low trail fork, especially the rake. *
http://tinyurl.com/7phz5kz*