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 Post subject: Bizarre TCR sizing
PostPosted: Mon Mar 17, 2014 11:34 pm 
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Joined: Thu May 23, 2013 9:22 am
Posts: 315
Location: Warwick, UK
Ok
So I've got 2 x TCR's
As per my signature.

A 2012 Advanced SL ISP in M/L
And a 2013 Advanced. Also M/L

Side by side, they looked slightly different. So I took some measurements.

Now the giant site states identical sizing and geometry for these two frames (hence the reason I have both, to train and race on same)

170mm head tube
570mm top tube.

After measuring, I've found the ISP frame actually has a 185mm head tube, as per a large frame. But has an identical top tube to the non ISP frame.

Odd.

_________________
'17 Giant Trinity Pro TT - DA9070 - Rotor 3D+ P2Max - Zipp 900T/HED Jet 9+
'16 Genesis Equilibrium - U6800 - FSA SRM - WH6800
'15 Cannondale Super Six Evo HM - DA9000- DA9000 SRM - CC40C
'13 Giant Trinity Composite - U6800 - QuarQ DZero


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 12:49 am 
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Joined: Sat Nov 10, 2007 9:51 pm
Posts: 418
The geometry of the TCR ISP strangely matches the DEFY ISP frame which has the 185mm head tube, but this would be extremely strange for Giant to miss this in QC.

http://www.giant-bicycles.com/en-au/bik ... /#geometry

I've got 2 small TCR advances, one is an SL 0 ISP and the other is a team, both headtubes are identical at 135mm.

Can the op post a picture of the TCR ISP ?


Last edited by lannes on Tue Mar 18, 2014 8:13 am, edited 3 times in total.

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 Post subject: Re: Bizarre TCR sizing
Posted: Tue Mar 18, 2014 12:49 am 


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 3:51 am 
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Joined: Fri Oct 28, 2011 3:25 am
Posts: 1468
Location: United Kingdom of Great Britain and Northern Ireland
But isn't the seat cluster markedly different between TCR ISP and Defy ISP? Perhaps they ran out of correct sized head tubes and didn't think anyone would ever buy two of them and so spot the mistake?


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 8:56 am 
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Joined: Thu May 23, 2013 9:22 am
Posts: 315
Location: Warwick, UK
I'll post pictures later.

I have a defy advanced too and the TCR SL ISP is markedly different.

It's very strange.

_________________
'17 Giant Trinity Pro TT - DA9070 - Rotor 3D+ P2Max - Zipp 900T/HED Jet 9+
'16 Genesis Equilibrium - U6800 - FSA SRM - WH6800
'15 Cannondale Super Six Evo HM - DA9000- DA9000 SRM - CC40C
'13 Giant Trinity Composite - U6800 - QuarQ DZero


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 11:04 am 
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Joined: Thu May 23, 2013 9:22 am
Posts: 315
Location: Warwick, UK
Advanced SL ISP
Image

Advanced
Image

_________________
'17 Giant Trinity Pro TT - DA9070 - Rotor 3D+ P2Max - Zipp 900T/HED Jet 9+
'16 Genesis Equilibrium - U6800 - FSA SRM - WH6800
'15 Cannondale Super Six Evo HM - DA9000- DA9000 SRM - CC40C
'13 Giant Trinity Composite - U6800 - QuarQ DZero


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 11:14 am 
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Joined: Thu May 23, 2013 9:22 am
Posts: 315
Location: Warwick, UK
Opposite way round whoops lol

_________________
'17 Giant Trinity Pro TT - DA9070 - Rotor 3D+ P2Max - Zipp 900T/HED Jet 9+
'16 Genesis Equilibrium - U6800 - FSA SRM - WH6800
'15 Cannondale Super Six Evo HM - DA9000- DA9000 SRM - CC40C
'13 Giant Trinity Composite - U6800 - QuarQ DZero


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 1:21 pm 
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Joined: Sat Nov 10, 2007 9:51 pm
Posts: 418
The ISP must have been custom built whose name is on the top tube ?


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 1:31 pm 
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Joined: Thu May 23, 2013 9:22 am
Posts: 315
Location: Warwick, UK
My name! Lol

_________________
'17 Giant Trinity Pro TT - DA9070 - Rotor 3D+ P2Max - Zipp 900T/HED Jet 9+
'16 Genesis Equilibrium - U6800 - FSA SRM - WH6800
'15 Cannondale Super Six Evo HM - DA9000- DA9000 SRM - CC40C
'13 Giant Trinity Composite - U6800 - QuarQ DZero


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 2:59 pm 
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User avatar

Joined: Sat Aug 30, 2008 1:46 pm
Posts: 101
Location: Ariege, Midi-Pyrenees
That is very strange. I have a M/L TCR Advanced Sl ISP, just checked the head tube and it's bang on 170mm. I would contact giant UK with the frame serial number, you could get a new frame out of this. Worst case is you have a copy, where did you get it? Although I have not heard of TCR copies, usually Italian frames. Good luck with this, keep the forum informed.


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 3:09 pm 
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Joined: Thu May 23, 2013 9:22 am
Posts: 315
Location: Warwick, UK
I bought it used from a good friend. He bought it new from a Giant store if I remeber rightly.
If it's a copy, it's DAMN good!!

I've emailed Giant to see what they think.

_________________
'17 Giant Trinity Pro TT - DA9070 - Rotor 3D+ P2Max - Zipp 900T/HED Jet 9+
'16 Genesis Equilibrium - U6800 - FSA SRM - WH6800
'15 Cannondale Super Six Evo HM - DA9000- DA9000 SRM - CC40C
'13 Giant Trinity Composite - U6800 - QuarQ DZero


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 4:13 pm 
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Joined: Wed May 24, 2006 6:25 pm
Posts: 1403
Have you taken any other measurements, other than HT and TT? The most plausible thing that comes to my mind is that they put a wrong label on a frame.

_________________
"Nothing compares to the simple pleasures of a bike ride," said John F. Kennedy, a man who had the pleasure of Marilyn Monroe.


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 4:39 pm 
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Joined: Sat Jul 29, 2006 2:36 am
Posts: 1353
Location: UK
Double check the TT measurement of the ISP.

I've taken measurements off the picture and got within a couple of mm of 585 (no pun intended).
I think Ypsylon could be right about the incorrect label(s). Does it have more than one label (BB etc)?

Also the stem looks shorter on the ISP? To get a similar reach?


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 4:46 pm 
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User avatar

Joined: Thu Aug 21, 2008 1:13 am
Posts: 852
Location: Utah
Please keep us updated...I am REALLY curious to know the outcome.

Best of luck figuring it out.


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 5:19 pm 
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Joined: Thu May 23, 2013 9:22 am
Posts: 315
Location: Warwick, UK
HT and TT are the only measurements listed on the giant site.

From the centre of the HT to the centre of the seat tube is where I gathered both measurements.

There are no size labels on either frame bizarrely.

The ISP HAD a shorter stem but now has the same as the advanced (110mm)

_________________
'17 Giant Trinity Pro TT - DA9070 - Rotor 3D+ P2Max - Zipp 900T/HED Jet 9+
'16 Genesis Equilibrium - U6800 - FSA SRM - WH6800
'15 Cannondale Super Six Evo HM - DA9000- DA9000 SRM - CC40C
'13 Giant Trinity Composite - U6800 - QuarQ DZero


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 Post subject: Re: Bizarre TCR sizing
Posted: Tue Mar 18, 2014 5:19 pm 


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 Post subject: Re: Bizarre TCR sizing
PostPosted: Tue Mar 18, 2014 5:36 pm 
Offline

Joined: Sat Jul 29, 2006 2:36 am
Posts: 1353
Location: UK
I meant re-measure the TT yourself.


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