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Marzocchi fork standard spring rate?

Posted: Wed Feb 29, 2012 8:35 pm
by randomsquid
I've just had a yellow spring shock rebuilt and re-sprung by Revs and some appropriate linkages given the once over.
I was going to get the forks serviced and set up too. (bike has done 23k miles)
I'm trying to get a feel for how the front will play with a shock set up for a person of rather a lot above average weight (I'm a muscular 8 foot 2...)

Cheers

Re: Marzocchi fork standard spring rate?

Posted: Wed Feb 29, 2012 9:02 pm
by Samray
randomsquid wrote: (I'm a muscular 8 foot 2...)

Cheers
Not quite the way I remember you ...
That must have been quite some growth spurt. :smt002

Posted: Wed Feb 29, 2012 9:07 pm
by randomsquid
:smt003
Actually I'm an undercover Greek god.
I have a magic ring that makes me look short and fat so that I don't scare the natives.

Posted: Wed Feb 29, 2012 9:38 pm
by Aladinsaneuk
I think you should keep the tales around your ring piece to yourself.....

Posted: Wed Feb 29, 2012 11:08 pm
by mangocrazy
Not sure about Marzocchi fork spring rates. From personal experience I can say that standard Showa forks springs are too harsh and that changing them improves matters a lot. I'd guess that Aprilia would have specified the same spring rate for the Marzocchis as they did for the Showa forks (1.05kg/mm), but that is only a guess.

There's also no guarantee that spring dimensions for Marzocchi would be the same as for Showa (i.e. length and diameter), as the internals are very different. I think you'll need to ask an expert; i.e. a suspension chappie who's actually had both types of fork legs apart.

<edit> - But what is oversprung for a puny mortal may well be ideal for a muscular 8 foot 2 Greek God... :smt003

Posted: Thu Mar 01, 2012 6:49 pm
by randomsquid
Aladinsaneuk wrote:I think you should keep the tales around your ring piece to yourself.....
I've nearly got enough stuff for a book. It's going to feature wizzards, a hobbit and an evil web fingered monster.

Posted: Thu Mar 01, 2012 6:55 pm
by randomsquid
mangocrazy wrote: I'd guess that Aprilia would have specified the same spring rate for the Marzocchis as they did for the Showa forks (1.05kg/mm), but that is only a guess.
Cheers, mine are definitely not on the squishy side.
The part numbers are different and if the part drawings are anything like to scale then they're a completely different length.

I'm going to pick the shock up after work tomorrow, I'll see what Revs think and report back.

Posted: Thu Mar 01, 2012 8:25 pm
by mangocrazy
randomsquid wrote:
mangocrazy wrote: I'd guess that Aprilia would have specified the same spring rate for the Marzocchis as they did for the Showa forks (1.05kg/mm), but that is only a guess.
Cheers, mine are definitely not on the squishy side.
The part numbers are different and if the part drawings are anything like to scale then they're a completely different length.
Ahem. I didn't say the same spring, I said the same spring rate. I'm well aware that the Marzocchi innards are very different to the Showas.

Posted: Fri Mar 02, 2012 6:16 pm
by randomsquid
mangocrazy wrote: Ahem. I didn't say the same spring, I said the same spring rate. I'm well aware that the Marzocchi innards are very different to the Showas.
Aye, I know :smt002
Thought that if the forks are the same diameter and same overall length then the springs might be common to both.

We have a cunning plan, leave the bike with them, get it back a day or two later depending on if they have to order any bits after disassembling and measuring.

I now have a yellow spring shock with a silver spring on. That'll confuse people.