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Old 08-01-12 | 11:50 PM
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Ritterview
Tandem Vincitur
 
Joined: Sep 2005
Posts: 3,317
Likes: 2
From: Northern California

Bikes: BMC Pro Machine SLC01, Specialized Globe, Burley Rock 'N Roll tandem, Calfee Dragonfly tandem.

Well, there is what I suggested on another thread a few hours ago:


Originally Posted by Ritterview
I've never ridden a Cannondale, but on all accounts it has a robust aluminum frame, and is available well-equipped (Ultregra) for significantly less than other tandems. Substituting the dale's Fatty R Tandem aluminum disk fork for a carbon caliper fork would save a lot of weight, and likely improve ride quality. Even with that outlay, the 'dale would still be less expensive than other aluminum tandems, but with a good frame, solid components and a carbon fork-- what's not to like?


Fatty R
The Fatty R weighs 935 grams.............................Enve 2.0. 350 grams
Avid BB7 300 grams, Rotor 200 grams.................Caliper, 100 grams.
1435 grams....................................................450 grams........................685 grams = 2.17 lbs

Yes, the fork is expensive ($400) , and lightweight calipers aren't cheap, but a 935 gram fork and a 500 gram brake have got to be the first to go. The fork alone saves 585 grams, or only $0.68/gram. Not too many WW moves are cheaper than 68 cents per gram. Even if you got a $300, 95 gram front eebrake, the cost would be only 74 cents/gram in comparison to the Avid.

If your lightening includes wheels (as it inevitably will), further savings are possible with dispensing with the disc brake hub.
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