19-12-12, 01:32 PM
As a serial suspension modder, IMO Linear springs matched to your weight are usually the way to go, unless you want soft, mushier suspension i.e. comfort over cornering (progressives).
The 600's standard springs are dual rate (progressive springs) and too light for anyone over 8 stone. A pair of 0.85kg/mm or 0.90 kg/mm linear springs would do the job better, along with new fork oil. You can usually get 2nd hand linear springs off ebay if you widen your search to cover bikes with 41mm diameter forks & re-cut the spring spacer to size.
The internal damper rods are the other restriction to the Fazer 600's forks and cartridge fork emulators are the only way round this, limitations explained below:
http://www.racetech.com/articles/CartridgeForks.htm
My fork mod:
http://foc-u.co.uk/index.php/topic,71.0.html
involved fitting Race Tech emulators (ordered from PDQ) that replicated cartridge fork action and therefore gave me adjustable compression and rebound damping, frankly the best standard front fork setup you can have for the FZS600. Its a popular conversion for other bikes with damper-rod forks, such as the SV650. BUT the mod is permanent unless you get your hands on another pair of damper rods and it is NOT cheap.
The 600's standard springs are dual rate (progressive springs) and too light for anyone over 8 stone. A pair of 0.85kg/mm or 0.90 kg/mm linear springs would do the job better, along with new fork oil. You can usually get 2nd hand linear springs off ebay if you widen your search to cover bikes with 41mm diameter forks & re-cut the spring spacer to size.
The internal damper rods are the other restriction to the Fazer 600's forks and cartridge fork emulators are the only way round this, limitations explained below:
http://www.racetech.com/articles/CartridgeForks.htm
My fork mod:
http://foc-u.co.uk/index.php/topic,71.0.html
involved fitting Race Tech emulators (ordered from PDQ) that replicated cartridge fork action and therefore gave me adjustable compression and rebound damping, frankly the best standard front fork setup you can have for the FZS600. Its a popular conversion for other bikes with damper-rod forks, such as the SV650. BUT the mod is permanent unless you get your hands on another pair of damper rods and it is NOT cheap.