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PostPosted: Sat Aug 31, 2013 12:54 pm 
Retro Guru

Joined: Tue Oct 16, 2012 4:16 pm
Posts: 1568
Location: NOTTINGHAM
I'm trying to giggle Woz if it wasn't so damn annoying! A bike - a simple creation that shouldn't require so much thinking about. I'd hate to think what those guys into classic cars must go through when they find things not as they should be!

There's some date codes to go by - basically 2001 issue for 3 or 4 months - I haven't checked (yet). I think that recall is an ar$e covering exercise - there's not much else on the www about problems, it's the bostik moment that's needs to be erased from my mind!

Rampage - at least the join on your forks looks professional. Mine's a dogs dinner of an affair - classic case of what you can't see won't hurt you!


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PostPosted: Sat Aug 31, 2013 1:44 pm 
retrobike rider
retrobike rider

Joined: Thu Apr 17, 2008 1:24 am
Posts: 7563
Location: Manchester
FINNEY1973 wrote:
Rampage - at least the join on your forks looks professional. Mine's a dogs dinner of an affair - classic case of what you can't see won't hurt you!


True.
I'd probably not even have noticed it if I hadn't seen this thread last week!


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PostPosted: Sat Sep 14, 2013 10:29 pm 
Retro Guru

Joined: Sat Jan 07, 2012 11:16 pm
Posts: 805
Location: North London
Replying here from the build thread. Had a go at getting the forks out of my green TCR as promised to find the headset top nut impossible to remove!!! so at least I haven't discovered any worrying issues with my own fork but I do now have the issue of removing this headset. It was always on the cards to change it when I re-build the bike after moving and I already have a brand new NOS stronglight HS sitting in a box. oh well. Anyway, I did shine a torch down the steerer tube and noticed that the internal diameter is narrower for the last couple of inches, can't tell if it's got the same kind of join in it as yours though at this stage. I'll keep you posted.

BTW I'm after a 1 1/8th" steerer TCR fork for a different bike, if you see any around for cheap let me know.


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PostPosted: Sun Sep 15, 2013 9:54 am 
Devout Dirtbag

Joined: Tue Jul 30, 2013 10:06 am
Posts: 125
Location: Nottingham UK
At first glance this looks like a 'cut & shut' job as they say in the motor trade...
However given all of the other info there may be a less worrying explanation.
May I suggest that you send the photos to Giant and ask them what they think - they should know if they made them like that.
Dave


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PostPosted: Mon Sep 16, 2013 3:33 pm 
Retro Guru

Joined: Tue Oct 16, 2012 4:16 pm
Posts: 1568
Location: NOTTINGHAM
Cheers Riddim, could well be that the narrowing of the steerer is down to the same construction - time will tell on that one if the HS is stuck fast!

Certainly looks like a garden shed bodge but photo's already submitted & commented on by Giant UK - they stated this was the production method at that time so no need to worry. Hasn't exactly filled me with confidence so going to change the forks at some point.


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PostPosted: Mon Nov 18, 2013 8:58 pm 
Retro Guru

Joined: Tue Oct 16, 2012 4:16 pm
Posts: 1568
Location: NOTTINGHAM
http://www.ebay.co.uk/itm/1-inch-Carbon ... 2ecbe72312

Finally found images of said forks....someone selling some on the bay. Absolutely no doubt that these are how they came from the factory.


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PostPosted: Tue Nov 19, 2013 11:07 am 
retrobike rider
retrobike rider
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Joined: Sat Jul 14, 2012 3:03 pm
Posts: 1773
Location: In the village
Old glue is fun stuff with a mind of its own.
I used to work in the Alps as a ski mechanic. Skis were a composite construction made of many different materials sandwiched together. A lot of them in the early 90's had aluminium tops bonded to whatever layer of stuff was below. It was always the aluminium that delaminated from the other layers, as for some reason it wouldn't hold onto the epoxy glue.

Skis have a short life span and are subject to a lot of flex, much more than the steerer on a set of forks, but it was the short life of skis that stopped them from completely blowing apart. I don't know how old your forks are but they are subject to a lot of vibration over a far longer period, so maybe it might be wise to check the length and state of the bond and if you are at all unsure, get a new pair of forks.

Headbutting the road or kerb is not pleasant, speaking from experience.


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PostPosted: Tue Nov 19, 2013 2:37 pm 
Retro Guru

Joined: Mon Jan 15, 2007 12:12 am
Posts: 1513
Location: Gold Coast Australia
I make composite items in Australia and I can assure you they have no fatigue life like metals , but the bonding between the dissimilar materials of carbon/epoxy fork blades ,aluminuim crown and steel steerer in a fork should be watched (in particular the carbon to alloy joint as they make electricity if they touch) , It could also be that the steel steerer goes all the way down to the brake bolt and there is some mechanical assistance there too.

ps Monocoque forks (ALL carbon) are better for many reasons IMO not just weight


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PostPosted: Wed Nov 20, 2013 12:14 am 
Devout Dirtbag

Joined: Tue Jul 30, 2013 10:06 am
Posts: 125
Location: Nottingham UK
FINNEY1973 wrote:
http://www.ebay.co.uk/itm/1-inch-Carbon-threaded-forks-fully-adjustable-handlebar-stem-577g-weight-/200989418258?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item2ecbe72312

Finally found images of said forks....someone selling some on the bay. Absolutely no doubt that these are how they came from the factory.


Yes...but is that any more reassuring?!


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PostPosted: Wed Nov 20, 2013 12:24 am 
Retro Guru

Joined: Tue Oct 16, 2012 4:16 pm
Posts: 1568
Location: NOTTINGHAM
hernehill69 wrote:
FINNEY1973 wrote:
http://www.ebay.co.uk/itm/1-inch-Carbon-threaded-forks-fully-adjustable-handlebar-stem-577g-weight-/200989418258?pt=UK_sportsleisure_cycling_bikeparts_SR&hash=item2ecbe72312

Finally found images of said forks....someone selling some on the bay. Absolutely no doubt that these are how they came from the factory.


Yes...but is that any more reassuring?!


For me personally, no not really. Don't feel like I can give it plenty when riding, constantly staring at the road for pot-holes. Don't enjoy riding the bike if I'm honest. And in absolute truth I don't really get on with the riding position - It's a bit too upright at the front end for me. I've done < 100 miles on it. Shame really as I'd always wanted one, always read with interest peoples opinions etc. but it's not for me.


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