I did some extensive chain tube upgrading on my wife's '06 Road...
affectionately named PhattKatt... the trike... not my wife!

Have a look at my blogspot on how I accomplished reliable chaintube
management on the Catrike:
http://phattkatt.blogspot.com/2008/02/another-day-of-surgery.html

I used a time tested true PTFE chain tube... 1/2" ID x 1/16" wall that
is used on Actionbent bents. After 2 years+, not a single scratch
inside the tubes; flexible; quiet; and super tough... slicker-n-sn@t.

The only place that advertizes Teflon chain tubes is Hostel Shoppe. I
haven't seen it so I can't say if it is the same or another hybrid
mix. Their price is about right for what true PTFE tubing would cost.

The goal was to minimize chain tattoos. I commute in slacks and full
length tubes is the only way to go [for me].

--- In TeamCatrike@yahoogroups.com, "kkluckhohn" <kkluckhohn@...> wrote:
>
> I went for a ride yesterday and hit a ton of bumps. Long story short,
> my chain tubing became loose from it's bracket. I am considering
> removing the tubing all together and replacing it with an idler. It
> looks like it already has a Terracycle Idler for the chain going to
> the front cogs, and then just a bracket for the return chain. I've
> seen people change the bracket out for an idler. Does anyone have any
> suggestions?
>
> --Kevin
>