yuri- Lately, when I change from large chain ring to small one the chain
simply
drops off (every 3rd-4th change).
Once it even did so when going from small to large chain ring. BRBR
The only advice they could offer me was to change a
few rear cogs up/down so that the chain is more or less "straight" when I am
about to change BRBR


Third Eye or Jumpstop chain watcher. A plastic doo-dad that will prevent your
chain from falling off the small ring. Not uncommon with any lever mounted
shifting systems.

Peter Chisholm
Vecchio's Bicicletteria
1833 Pearl St.
Boulder, CO, 80302
(303)440-3535
http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"