[Closed] the worst bike maintenance jobs

Bonj,what is this *magic* orange spacer to which you refer?
Is it the answer to all my front mech fettling ills?

it comes with every new front mech when it's bought new in the box. If you bought an OEM one you might not have it as the bike shop will have just taken it off a bike and may not have thought to include one. Most people toss it to one side 'cos they're the sort that don't bother reading the instructions but it does have a purpose.

Or if you bought your whole bike as a complete bike then you won't have one either, but I don't generally do that.

I've got one in the garage, I'll post a pic of it tomorrow.
You can improvise, but it has to be the right shape to keep the front mech open, it's surprising how many things just ping out and wont' stay in and hold it.