13-03-17, 05:17 PM
If the front was basically OK before the garage changed the springs, then logically the problems have been caused by their work. I would find it hard to believe that the springs alone could be causing such drastic handling concerns, so take it back and explain the symptoms.
It could be any of a number of things wrong with the installation, from springs fitted the wrong way up or binding in the stanchion; incorrect/too much/too little fork oil; fork dampers not properly bled etc.
I fitted Hyperpro progressives to a mate's Fazer many years ago and found them a definite improvement over the stock springs, so I don't discount progressive springs as eagerly as others seem to.
It could be any of a number of things wrong with the installation, from springs fitted the wrong way up or binding in the stanchion; incorrect/too much/too little fork oil; fork dampers not properly bled etc.
I fitted Hyperpro progressives to a mate's Fazer many years ago and found them a definite improvement over the stock springs, so I don't discount progressive springs as eagerly as others seem to.