On 26 Aug 2005 11:14:36 -0700, "Rick" wrote:

If the chain is worn, then it is more costly to keep riding on it than
to replace.

Only if it's not yet too worn. If the cogs are already badly enough worn,
you just have to suck that up and you can start planning for the wholesale
replacement while you beat the **** out of it for the remaining miles
until it starts skipping.

Jasper