K2 / Proflex Riders Group
General => Tech Forum => Topic started by: ruger44 on February 14, 2009, 02:18:17 am
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Hello I am very new here, I am Anton, living in Middelburg Netherlands
I am looking for a long model Girvin OR Noleen fork, it has to have in 1" steerer.
Now I am searching for every piece of data I can find and I cannot find the sizes of the steerertubes."
My question to you all is:
Are Noleens not available in 1" ?
And what is the length of the forkstanchions, in the long model?
From axle to top mount is probably the best way to measure them?
Thanks in advance for answering!
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only the girvin vectors which were fitted to bikes up to 96 had the 1 in steerer.Not sure there was a LONG version of the girvin though.as all the bikes had a headtube of the proper length .The long version became available when the noleens became available as aftermarket forks,and they were fitted to the way big bikes too
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Steerer tube sizes for Girvin AL fork with 1" steerer
Steer Tube Standard for bikes with head Tube 90-125mm is listed as 222mm part number 15003-5
Steer Tube Long for bikes with head Tube 125-160mm is listed as 259mm part number 15003-6
there is no size listed for the fork legs but they did come in two sizes.
These forks were available aftermarket and were sold as a Girvin Linkage Fork.
There is no listing for a 1 1/8" Long steerer either, only the standard ones, these are actually 1" steerer tubes its only the crown race seat that's 1 1/8" so a headset shim is still req.
http://www.k2bikes.com/PDF/techLibrary/1997/vector2_assy.pdf
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Steerer tube sizes for Girvin AL fork with 1" steerer
Steer Tube Standard for bikes with head Tube 90-125mm is listed as 222mm part number 15003-5
Steer Tube Long for bikes with head Tube 125-160mm is listed as 259mm part number 15003-6
there is no size listed for the fork legs but they did come in two sizes.
These forks were available aftermarket and were sold as a Girvin Linkage Fork.
There is no listing for a 1 1/8" Long steerer either, only the standard ones, these are actually 1" steerer tubes its only the crown race seat that's 1 1/8" so a headset shim is still req.
[url]http://www.k2bikes.com/PDF/techLibrary/1997/vector2_assy.pdf[/url]
well there we are...i didnt know they came in a long,thanks Mont!
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Steerer tube sizes for Girvin AL fork with 1" steerer
Steer Tube Standard for bikes with head Tube 90-125mm is listed as 222mm part number 15003-5
Steer Tube Long for bikes with head Tube 125-160mm is listed as 259mm part number 15003-6
there is no size listed for the fork legs but they did come in two sizes.
These forks were available aftermarket and were sold as a Girvin Linkage Fork.
There is no listing for a 1 1/8" Long steerer either, only the standard ones, these are actually 1" steerer tubes its only the crown race seat that's 1 1/8" so a headset shim is still req.
[url]http://www.k2bikes.com/PDF/techLibrary/1997/vector2_assy.pdf[/url]
Thank you for all the replies!
This one is especially very useful, as I could not find steerer-lenghts myself!
There are more of the 222mm steerers around, I suppose, I really need the longer model.
Now there is a Noleen in the mail towards me, but that one has a 1-1/8" steerer, think this will involve making another one in 1'from scratch?
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show us some pictures if you do manage to make one ;)
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show us some pictures if you do manage to make one ;)
Well, it will not be as 'fancy' as the original, but it is possible.
Seen someone doing it before, using a CroMo steerer tube, with a hand made crosstube hard-soldered in it.
I should be able to do that, but I was more thinking of making a special 'block' to fit the steerer tube
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One thing to note about the earlier Girvin forks...though they had a mostly 1" steerer, the bottom of the steerer had a step-up ridge, and these forks still used a 1 1/8" headset (you had to use an adapter to make the top part of the 1 1/8" headset work with the 1" section of the steerer). At least that's the way it is on my 856s. Is anyone out there running a 1" headset with a Girvin fork?
That said, it seems logical that one might be able to machine off the step-up on the bottom of the steerer, so it truly used a 1" headset.
Thoughts?
- Doug :-)
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One thing to note about the earlier Girvin forks...though they had a mostly 1" steerer, the bottom of the steerer had a step-up ridge, and these forks still used a 1 1/8" headset (you had to use an adapter to make the top part of the 1 1/8" headset work with the 1" section of the steerer). At least that's the way it is on my 856s. Is anyone out there running a 1" headset with a Girvin fork?
That said, it seems logical that one might be able to machine off the step-up on the bottom of the steerer, so it truly used a 1" headset.
Thoughts?
- Doug :-)
The 'earlier' Girvins had a full 1" steerer and I think about 96 they did the one with the 1 1/8" step on the bottom, I have 3 sets of AL forks one has the 1" steerer.
Just looking at one now I can see the steerer is made from two parts, the part that forms the step is actually pinned and bonded to the main shaft to form the lower link mounting, so it may be possible to remove it and have it turned down.
http://idriders.com/proflex/coppermine/displayimage.php?album=lastup&cat=0&pos=0
Monty
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One thing to note about the earlier Girvin forks...though they had a mostly 1" steerer, the bottom of the steerer had a step-up ridge, and these forks still used a 1 1/8" headset (you had to use an adapter to make the top part of the 1 1/8" headset work with the 1" section of the steerer). At least that's the way it is on my 856s. Is anyone out there running a 1" headset with a Girvin fork?
That said, it seems logical that one might be able to machine off the step-up on the bottom of the steerer, so it truly used a 1" headset.
Thoughts?
- Doug :-)
The 'earlier' Girvins had a full 1" steerer and I think about 96 they did the one with the 1 1/8" step on the bottom, I have 3 sets of AL forks one has the 1" steerer.
Just looking at one now I can see the steerer is made from two parts, the part that forms the step is actually pinned and bonded to the main shaft to form the lower link mounting, so it may be possible to remove it and have it turned down.
[url]http://idriders.com/proflex/coppermine/displayimage.php?album=lastup&cat=0&pos=0[/url]
Monty
Thank you for the photo! :)
Very clear what the difference is now.
I remember reading somewhere (?) that the alloy piece is fitted with a taper and pinned?
I think it was a warning that they can losen under severe (mal)handling?