Originally Posted by 87 Demo

This here. I usually ride my bikes for a month or so before I make component changes, even uncomfortably is sometimes just a matter of getting used to the position on a particular bike.

The cranks (Stronglight 93) on these are very well respected and the derailleurs are HIGHLY sought after, possibly the lightest weighing derailleurs ever made! if you make any changes make sure you know what you have first. You'll run into problems changing out the rear derailleur anyway, the bike has Huret dropouts which are only compatible with Huret and some older Shimano derailleurs without making a washer or modifying the dropout. The Jubilee could probably handle 7 cogs anyway.