Dont buy a piece of s... like this......

Discuss light weight issues concerning road bikes & parts.
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Villadsen
Posts: 222
Joined: Mon Oct 14, 2002 8:34 pm
Location: Mainhattan

by Villadsen

What you see here is (or better was) a 15 tooth TA Kheops alu cog. I never thought that Alu cogs would last, but seeing LA use these on L'Alpe D'Huez a couple of years ago made me buy a set. This one has less than 500 Km on it and some of the teeth are completely worn out and the chain is skipping with every pedal turn. It was used with a completely new Wipermann Titanium chain and only in good weather. Dont buy it........
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TA2.jpg

Villadsen
Posts: 222
Joined: Mon Oct 14, 2002 8:34 pm
Location: Mainhattan

by Villadsen

It is especially the teeth which are made narrower for better shifting which are completely worn out.
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TA.jpg

Oswald
Posts: 792
Joined: Thu Jan 08, 2004 10:11 pm

by Oswald

Maybe it's because of the chain... a titanium chain just doesn't make any sense... it stretches too much and causes the sprockets to wear faster...

Villadsen
Posts: 222
Joined: Mon Oct 14, 2002 8:34 pm
Location: Mainhattan

by Villadsen

Clarification: It is a Wippermann part titanium chain. It does not flex more than other chains because the main parts are of steel

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Superlite
Posts: 2492
Joined: Fri Aug 29, 2003 9:01 pm

by Superlite

It's a race only part, what do you expect.

Rogue_M3
Posts: 240
Joined: Fri Jan 23, 2004 2:55 pm
Location: St. Louis

by Rogue_M3

Superlite wrote:It's a race only part, what do you expect.


Exactly-- My American Classic Aluminum cassette states that it is a race only cassette and that it will only last about 1,000 miles.

Villadsen
Posts: 222
Joined: Mon Oct 14, 2002 8:34 pm
Location: Mainhattan

by Villadsen

Very clever answers. What does race only mean? This part have lasted what is the equivalent of 2 pro-races or 3 amateur races. Is that race only or is it race only as in "one race only". If it had lasted 1000 miles then OK, but now we are actually talking less than 300 miles

bobalou
Posts: 1013
Joined: Mon Dec 15, 2003 6:05 am

by bobalou

Something also to consider, if you used it with a worn chain then it will last even less. A stretched train of any magnitude will quickly wear out any cassette, and an alloy cassette much faster. Alloy cassettes are fine to use for their purpose but it's critical that the chain be new when the cassette is new.

mises
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by mises

and this isn't too pretty either. Unless I decide to ride around in a 34x14 top gear it pretty much shot my weekend. In Campy's defense it was over 2 years old.
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Ergone lever.JPG
Left Ergo finger shifter unintentional weight loss

danielgillett

by danielgillett

I personally recommend Tiso chainrings...

I currently have their aluminium road chainrings, but within the next week I will be receiving their Chrono and Titanium road chainrings!

Tiso is very good quality with excellent manufacturing standards. Not to mention lightweight!

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spytech
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Joined: Wed Oct 22, 2003 12:34 pm
Location: New York City
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by spytech

mises wrote:and this isn't too pretty either. Unless I decide to ride around in a 34x14 top gear it pretty much shot my weekend. In Campy's defense it was over 2 years old.


You must have strong fingers...lol :lol:

TedB
Posts: 32
Joined: Tue Feb 17, 2004 3:10 pm
Location: New Orleans

by TedB

danielgillett wrote:I personally recommend Tiso chainrings...

I currently have their aluminium road chainrings, but within the next week I will be receiving their Chrono and Titanium road chainrings!

Tiso is very good quality with excellent manufacturing standards. Not to mention lightweight!


FWIW, the Tiso chaingrings are the ones that the Cofidis team was complaining about when they were dropping their chains in the '03 TDF.

danielgillett

by danielgillett

TedB wrote:
danielgillett wrote:I personally recommend Tiso chainrings...

I currently have their aluminium road chainrings, but within the next week I will be receiving their Chrono and Titanium road chainrings!

Tiso is very good quality with excellent manufacturing standards. Not to mention lightweight!


FWIW, the Tiso chaingrings are the ones that the Cofidis team was complaining about when they were dropping their chains in the '03 TDF.


I heard that the whole complaint exerted from the fact that the team Mechanic decided to leave Millar's Front Derailleur off.

Joel
Posts: 751
Joined: Fri Jun 13, 2003 1:43 pm
Location: Belgium

by Joel

danielgillett wrote:
TedB wrote:
danielgillett wrote:I personally recommend Tiso chainrings...

I currently have their aluminium road chainrings, but within the next week I will be receiving their Chrono and Titanium road chainrings!

Tiso is very good quality with excellent manufacturing standards. Not to mention lightweight!


FWIW, the Tiso chaingrings are the ones that the Cofidis team was complaining about when they were dropping their chains in the '03 TDF.


I heard that the whole complaint exerted from the fact that the team Mechanic decided to leave Millar's Front Derailleur off.


It was Millar himself who decided to leave the FD off. A big risk with the potholes etc in centre Paris. Every modern chainring with shifting help combined with a narrow chain will cause this problems on a bad road. Track chains are wider and so are the chainrings, with them and the excellent track it's (nearly) impossible to have the chain dropped from the chainring.

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