Proflex 757 - rear suspension - Anyone know the size?

[SavagePower]

Hi guys, I'm thinking of replacing the rear shock on my Proflex 757 to a Fox shock but does anyone know how I can find out what size it is without having to dismantle my bike?

Yes I could just measure at the side but I'm worried about not getting accurate measurements?

Anyone know the right Fox sized rear shock?

(Same questions for my 2004 Marin East Peak - will post that in appropriate section)

(I shall be keeping a hold of the original Noleen shock)

Thanks in advance from as newbie.

 

[jimo746]

you're going to have to dismantle the rear suspension to fit a new shock right? so may as well get it dismantled and measured up ;-)

What rear shock is on there now? is it the elastomers? ODS? or a Noleen shock?
Best way to measure is to get the eye-to-eye length of the shock (measure from centre of one shock mount to centre of other mount).

All I can tell you is that on my 97' 857 I used a 165mm eye-to-eye Fox Float shock, with a home-made adapter (have you already got some kind of adapter made that will allow you to use a Fox shock???).

If you haven't already done so then go over to the idriders Proflex forum, someone there may know, or you may find the info there.

http://idriders.com/proflex/smf/index.php?board=1.0

 

[SavagePower]

Hi man,

Yeah you're right but I'd like to have the shock and then dismantle and fit it straight away.

Currently it had OG Noleen springs, it was the later model post-elastomers, (although today I picked up a 855 and Beats both with elastomers and both need TLC so they are the next 2 projects)

Thanks for the advice on measuring them appreciate that. and for the heads up on the Proflex forum thats ace!!

Cheers

 

[02gf74]

All I can tell you is that on my 97' 857 I used a 165mm eye-to-eye Fox Float shock, with a home-made adapter (have you already got some kind of adapter made that will allow you to use a Fox shock???).

google my adapter for proflex xp8 - designed to use a 165mm fox.

problem with proflex shock is that one end is a threaded rod and there are virtually no shocks of that variety apart from the original girvin and risse that will fit - the latter being avaialbe from USA at a large cost - hence why I opted for an adapter.

 

[SavagePower]

Thanks. So the adaptor is called the Xp8?

I will look into it, the only thing I've found so far is a thread saying you're not making them but I'll keep on hunting.

Cheers

 

[jimo746]

No, the XP8 is just another model of Proflex MTB.

I'm sure the drawings for the adapter are on the Proflex idriders forum somewhere...
If/when you find them you should be able to get a engineering firm/man with lathe to make you an adapter.

The rear shock issue is the real killer with these bikes, why Proflex opted for that particular system of mounting the shock I don't know, but it just makes life awkward when you want to replace the rear shock.

 

[SavagePower]

h I see, thanks for the info I shall have a hunt for them

 

[02gf74]

this is the post i referred to.

viewtopic.php?f=1&t=152885&hilit=xp8

XP8 is the model of my 1996 proflex.

sorry for not posting earlier but I cannot do super clever stuff like copy/past on the galaxy

 

[SavagePower]

Thanks man, really thank you

I will get that made I think so I will PM you my email now

Thanks
Ben

 

[orangeone]

sorry to hijack but would it be possible to get a copy of the plans I have a fox rear shock in my box of bits and I have a mint 856 crying out for a modern shock