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 Post subject: aluminum sprockets
PostPosted: Tue Aug 12, 2003 1:31 am 
hi there,

I currently ride on a Campa Ti/Steel cassette. But I want to shave some more weight off my (with just over 7000 grams w/o pedals) not too heavy bike.
Was looking into TA specialties sprockets, man, light is the word.
but how long do they last? any experience?
I have 4000 km on my ti/st and it still looks like new...


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 Post subject: TA Cassettes
PostPosted: Tue Aug 12, 2003 10:49 pm 
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Joined: Sat Nov 30, 2002 4:49 am
Posts: 1903
The TA cassette is much lighter than Dura-Ace or Record Steel/Ti cassettes, but unfortunatly I have found mine do not last as long as the DAs. This means I run a TA on my race wheels, and train on Ultegra.

The Effeti (sp?) one piece is lighter again, but I havn't yet yet purchased one - This is planned to replace the TA when it wears out.


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 Post subject: Re: TA Cassettes
PostPosted: Thu Sep 11, 2003 4:12 pm 
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Joined: Fri Jun 13, 2003 1:43 pm
Posts: 751
Location: Belgium
http://www.lightbike.com/it/pignoni/index.htm
Check this: 120g for 12-26 Campa and not too expensive :)


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 Post subject:
PostPosted: Thu Sep 11, 2003 4:24 pm 
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Joined: Fri Aug 29, 2003 9:01 pm
Posts: 2477
Location: Colorado
i use to think about getting an aluminum cassette, but then I realized how much of a waste it is. You pay all that money and about 1000 miles later it's garbage. I don't know if you guys are just building lite weight bikes you hardly ride or what, but I've seen some pretty stupid stuff on bikes lately. I ride about 12,000 miles a year so a cassette like that would be gone in a month. Forget aluminim, if you want light weight, go with a cycledynamics Ti cassette. It's about 40 dollars more than an aluminum and weighs about 15 grams more, but it will last quite a long time. Soon as I get enough money saved up you can see it on my bike.

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 Post subject:
PostPosted: Thu Sep 11, 2003 6:02 pm 
Yes we do put silly stuff on our light bikes, but if you decide to ride on light parts all the time then that is you choice, I have a hack bike for general training it is still quite nice and most other people qould consider it light but it is just plain durable parts. The aluminium cassette is there for race days


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PostPosted: Fri Sep 12, 2003 5:29 am 
Better yet, the American Classic alloy Campy cogs are individual (bolted together by an allen bolt), and according to their website, will be available individually for replacement...

Those 1 piece alloy units are light, but you all know the pitfalls of wearing one or two of the cogs out... bye bye cogset...


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 Post subject:
PostPosted: Fri Sep 12, 2003 10:10 am 
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Joined: Sat Nov 30, 2002 4:49 am
Posts: 1903
Francios, I agree with your method of using these faster wearing but lighter parts.

One adventage of the TA cassettes is that the cogs can be purchased individually (if you ask nicely).


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 Post subject: Al vs Ti cassettes
PostPosted: Tue Sep 16, 2003 11:32 pm 
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Joined: Wed Apr 09, 2003 1:44 am
Posts: 17
Location: Sarasota,Florida
Which have a slower wear rate Ti cassettes or Al cassettes. I would think the Ti would last longer. Also I remember Campy used to treat there aluminum freewheels so they would last longer(around 3000-4000 miles) by heat treating them or something. I wonder if TA or the others do this or not?


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 Post subject:
PostPosted: Wed Sep 17, 2003 3:17 am 
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Joined: Fri Aug 29, 2003 9:01 pm
Posts: 2477
Location: Colorado
Yes, TA does heat treat them, but they dont last NEARLY as long as a Ti cassette. Expect around 9-12,000 miles out of a Ti cassette, 5-8,000 miles from a steel, and 1000-2000 miles from aluminum.

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