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PostPosted: Wed Apr 10, 2013 7:53 pm 
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Joined: Thu Dec 13, 2012 4:24 am
Posts: 88
Location: Sierra Foothills, California USA
Quote:
I run the Tiagra/4550 compact, and with a 46t outer 'ring, it's 900g including Dura-Ace cups.

Sorry for the slight h-jack thread. I just bought a new Tiagra compact 50/34 off flebay, ($74 btw + ship) but it's a 4650. What is the difference between the 4550 and the 4650 ? - thanks

They both look heavy and like they could go on a diet :twisted:


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PostPosted: Wed Apr 10, 2013 8:06 pm 
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Joined: Sun Apr 01, 2007 10:50 pm
Posts: 199
totoboa wrote:
Quote:
I run the Tiagra/4550 compact, and with a 46t outer 'ring, it's 900g including Dura-Ace cups.

Sorry for the slight h-jack thread. I just bought a new Tiagra compact 50/34 off flebay, ($74 btw + ship) but it's a 4650. What is the difference between the 4550 and the 4650 ? - thanks

They both look heavy and like they could go on a diet :twisted:


My understanding is that the mounting tabs are slightly thinner on the 4650 (hence their 10s compatibility). I don't know if they made any changes to the outer ring.

I have a feeling that I was bidding on that very same crankset. I'm a real fan of these cranks. Not the lightest (by a longshot), but they can be had cheaply, and are easily customized for non-standard gearing (in my case, 34/48 and 36/46).

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PostPosted: Wed Apr 10, 2013 8:47 pm 
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Joined: Thu Apr 04, 2013 12:30 pm
Posts: 1
I always thought Cannondale or Specialized's cranks were some of the lightest and from decent manufacturing backgrounds. The only challenge is to your pricing requirements as these are definitely not cheap.


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PostPosted: Wed Apr 10, 2013 9:39 pm 
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Joined: Wed Feb 25, 2009 7:58 pm
Posts: 323
Location: Lancaster, UK
the older style Sram Red is pretty light and you may still find some NOS, or a mint s/hand one. Not as light as the latest exogram much cheaper. Shimano c/sets are generally pretty heavy, if stiff.


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