Further to Blam's answer about the position of the pulley (which takes up the slack in the chain), my hybrid/touring bike was recently serviced by a very experienced French shop mechanic of racing bikes.

He put on a chain which was too short (i.e. it pulled tight and jammed) if, when I rode it, I cross-chained it onto both big rings: and when I told him that (that that's what happened when I test-rode it) he said, "You're not supposed to do that." He did replace it with a longer chain though.

I'm a bit surprised there's a Decathlon near you but no bike shop. Any bike clubs?

Mechanic says not to use top three/bottom two gears or the chain will throw
Note: I'm using ConvertTo-XML and cannot use Export-Clixml:

I create a simple PSObject:

$a = New-Object PSObject -Property @{
    Name='New'
    Server = $null
    Database = $null
    UserName = $null
    Password = $null
}


I then convert it into XML using ConvertTo-XML:

$b = $a | Convertto-XML -NoTypeInformation


The XML looks like this:

&lt;?xml version="1.0"?&gt;
&lt;Objects&gt;
  &lt;Object&gt;
    &lt;Property Name="Password" /&gt;
    &lt;Property Name="Name"&gt;New&lt;/Property&gt;
    &lt;Property Name="Server" /&gt;
    &lt;Property Name="UserName" /&gt;
    &lt;Property Name="Database" /&gt;
  &lt;/Object&gt;
&lt;/Objects&gt;


I'm having trouble figuring out the dot notation or XPath query to extract the attributes/elements and convert $b back to the original PSObject.
