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Hopefully someone can help, I've recently got myself a 08 stumpy pro fsr frame to build up. When I received the frame I noticed there was some play in the rear. Spoke to the seller who say's that he has replaced the bearings recently.
I removed the shock from the frame and noticed that there is no eyelet bushing fitted to the bottom of the shock.
long story short, should the shock have an eyelet bushing?
Cheers in advance.
just a normal fox bushing, a BETD style hula hoop works well.
http://www.mountainbikecomponents.co.uk/items.asp?CategoryID=92&Name=Strong+Bushes
My 2007 Stumpjumper FSR (completely different frame I realise) had no shock bushing on the bottom end so its not uncommon for specialized to not use shock bushes.
The axle is as big as the hole in the shock and the axle rotates on two bearings the same size as the one the rocker and chainstay rotate on
If there was meant to be a bush in there and there isn't it'd be more than a little play, it'd be a big clunking knocking I reckon
Thanks speshpaul
My worry now is, how long has the previous owner been running it without the bush and what damage has been done to the shock
james
I thought the 07 and 08 were the same frames?? Shows how much I know. 😳
To be honest it doesn't look like there has ever been a bush in there, but I can move the shock from side to side and when I lift the bike up by the saddle and put it down you can feel it clunk.
that said, page 16 of the manual suggests its bushed on both ends:
2010, 2011 (can't rememeber what happened by 2012) were 140/140mm
2008 and 2009 were the same 120max/120mm frame with a vertically mounted shock
2007 and 2006* were the same 140max/120mm frame with the shock mounted nearly horizontally and cutting through the seattube
*at least I think they were? the carbon one in 2006 was also? available with a 130mm back end as a frame only?
2005 I think (and maybe 2004?) was 120mm back end but not quite the same frame I think? Still shock nearly horizontal
Apologies my frame is an 07
This one
http://www.bikepedia.com/quickbike/BikeSpecs.aspx?year=2007&brand=Specialized&model=Stumpjumper+FSR+Pro#.UuaZOWanxc
Ignore my manual references then. they're for 08/09
So this one? in the specialized archive:
[url] http://www.specialized.com/gb/gb/bikes/archive/2007/stumpjumperfsr/stumpjumperfsrpro [/url]
Stumpy FSR Pro and nor Stumpy FSR Pro Carbon?
Either way spesh have pulled the 2007 manuals from the online archive
Only the specialized AFR shock manual is still up there:
pg8 for stumpy FSR
The bizarre shock dimensions are up there too. So bizarre that a replacement shock close to the originals are near impossible (at least with the one for the carbon frame). Internal travel shimming of the shock and shock bushes won't get you close enough as far as I could work out, so ended up paying out over £200 last time to have it serviced by spesh
Its the stumpy pro fsr
sorry the link doesn't work for me.
I managef to find a pdf for the manual but I couldn't find anything in it regarding the shock bush
Call BETD they do a Hula Hoop that is thicker and slotted at the outside edges, so when you insert the bar it expands and takes up the slack.
Worst case, is a new bottom shaft for the shock, last time i had one done they were around £50 plus a service.
I've got the 2006 S-Works version of that frame and it has a bush top and bottom. I did find it used to eat through bushes although the polymer one with stainless insert seemed to last a lot longer than the DU.
If it's a Specialized shock, check the busing size. On the Enduro it takes a 12mm rather than the 1/2" that fox is
Oops double post 😯