You know when I think about it I had a similar issue the chain was to long for
the amount the boom was out. What I discovered as I had inadvertently not moved
the boom back out after a car ride cross country. When I moved the boom sucking
up the chain problem solved.

Plano Rod
Plano Texas
99 X-Stream
98 Expedition
98 Strada





--- In TeamCatrike@yahoogroups.com, Bicycle Minden <bicycle.minden@...> wrote:
>
> not really...most of the time it's on straight runs and more often than not
when I'm "under load" going up an incline
>
> Charles Rathbun
>
> ~~~~~~~~~~~~~~~~~
> "It's a beautiful day out there.
> What are you doing inside?
> Turn off the computer and
> GO RIDE YOUR BIKE!"
>
> --- On Thu, 6/25/09, Mike Fitzsimmons <themnfitz@...> wrote:
>
>
> From: Mike Fitzsimmons <themnfitz@...>
> Subject: Re: [TeamCatrike] Re: Expedition drivetrain problems
> To: TeamCatrike@yahoogroups.com
> Date: Thursday, June 25, 2009, 9:45 AM
>
>
>
>
>
>
>
>
>
>
>
>
> Does this, by chance, happen when you are cornering or going over bumps?�
I've had trouble with my trike (NOT a catrike, however) and several other
recumbents with long chain lines caused by chain whip resulting in phantom
shifts.
> Mike
>
> --- On Thu, 6/25/09, cte766 <az1103@verizon. net> wrote:
>
>
> From: cte766 <az1103@verizon. net>
> Subject: [TeamCatrike] Re: Expedition drivetrain problems
> To: TeamCatrike@ yahoogroups. com
> Date: Thursday, June 25, 2009, 12:11 AM
>
>
>
>
> --- In TeamCatrike@ yahoogroups. com, Bicycle Minden <bicycle.minden@ ...>
wrote:
> >
> > I bought an Expedition about a year ago and have most of the bugs worked out
except for a persistant drivetrain problem. The chain jumps on the rear sprocket
on several of the gears.
> >
> Charles, I just got back from a long ride and fiddle session..... Tightened
the cable at the derailleur one click at a time rode a few miles, fiddled some
more...... I believe it's a compounded problem; First, when they assembled these
things they ran the cable around the steering tie rod which causes the cable to
kink and move at the slightest turn - I corrected that and ran it into the front
(between fabric layers) of the seat and straight back, readjusted the cable and
all was well for about 30 miles....Then it began the chattering again and I
began fiddling with the tension. I almost have it but I suspect there is a
deeper problem; Last time I had to fix that sort of problem, on a DF, it turned
out that the derailleur when aligned at some cogs was just a tiny tweak out of
parallel with the cluster gears and there was just enough lateral play in the
idler (not the tensioner) to cause some slop. Fixed it by upgrading that
>