spademan o---[) * wrote:
"Dan Volker" wrote in message
. ..
On the heavily rooted trails I ride on ( Quiet Waters, Oleta, etc)
the chain on my Trek Liquid 25 starts flopping around like crazy
when I hit race pace speeds through the rough sections. This is not
an issue on trails in North Florida like Croom or Santos ( meaning
it would be a non-issue in N Carolina and other real mountain biking
locations). But for my weekly rides, I need to find a way to reduce
this flopping around. Sometimes the chain will shift itself into the
granny gear, when I "need" to stay in the middle ring. and other
times, when really hammering a rough section, the shifting on the
rear derailer is badly compromised by the flailing chain.

The only possible solution I can think of is removing the Big ring
from the equation, and taking out several links--shortening the
chain, in the hope that this will mean less travel potential for the
chain....I'd rather have a better solution, and am hoping someone
has one...

Dan V

You want one of these, unfortunately no longer made but easy to DIY.
http://idriders.com/cgi-bin/album_k2...bulletbros.jpg

Steve.

Or one of these.
http://www.ishop.co.uk/ishop/22/shopscr83.html

'Old' style chain device that lets you keep 3 rings

--
Mark