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mtbdcd
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Discussion Starter · #1 ·
Link to a velonews article:
http://www.velonews.com/tech/report/articles/12366.0.html

Looks like the new Madone's have a proprietary headset and BB bearings? Or am i misinterpreting the article? How will this work with different model cranksets?

I had kind of a bad experience with the proprietary headset i had on my 5900.

How does the seatpost work, that is how much adjustment do you get. And i guess that is proprietary too?
 

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From http://www2.trekbikes.com/madone/technology/efficiency/ :

"...Designed to accept most two-piece crank designs from Shimano®, Bontrager®, SRAM®, FSA®, and Campagnolo® without affecting the q-factor, the integrated bottom bracket design saves 40 grams compared to traditional designs..."
"...A slip fit bearing system that uses common, standard-sized bearings and requires no specialty tools or big torque loads..."

So it does look like a proprietary BB bearing system that will work on "most" two-piece cranks.

Here is another Trek link that discusses the adjustments on the seat mast:
http://trekroad.typepad.com/trekroad/2007/06/what_size_madon.html

Edit. Per Damon Rinard at Trek:
"...the bottom bracket bearings are a standard size, so you could easily change them to ceramic aftermarket ones if you wish..."
http://trekroad.typepad.com/trekroad/2007/06/velonews_lennar.html#comments
 
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