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Weights between Dura-Ace and Chorus 10s components???(11 posts)

Weights between Dura-Ace and Chorus 10s components???alta825
May 21, 2003 5:23 AM
Anyone know the weight difference between DuraAce and Chorus components? Looking at both of these groups and am curious if there is a noticeable weight savings w/ DuraAce? I am tempted to go Italian if it is in the same ballpark as the Shimano kit, I would not be getting hubs as I'm getting SSC sl's (I would get whichever version i need). Thanks for your info
re: Weights between Dura-Ace and Chorus 10s components???bigdeal
May 21, 2003 9:29 AM
Hm, well DA is SLIGHTLY lighter I think, you'll have to research that one. Chorus has 1 more gear. Without starting a war I think that's all I'll say. I went from Ultegra to Record and will never use Shimano again, but who knows what my opinion would be if I'd gone from DA to Record. Anyway, if you're seriously considering DA I'd suggest waiting a little while; once Shimano releases their new 10 speed group there will be a significant price drop on the 9 speed gear...shops looking to unload and gear-freaks looking to upgrade...lots of good deals to be had I predict.
re: Weights between Dura-Ace and Chorus 10s components???russw19
May 21, 2003 4:54 PM
Hey Bigdeal, I wouldn't bet on the big price drop.. I would just bet that the DA10 has a big increase. If you look at how things with XTR went this year, there was no drop in the older XTR stuff, just the newer stuff was more. I expect something similar to happen next year too. And I really wouldn't bet on the DA10 being out before March anyways. But those are just guesses. But I work in a shop and have been following the shimano trends for about 15 years now.

Russ

*edit- I should say I wouldn't expect the DA10 stuff to be readily available to everyone before March. Before that it will go to the big companies for complete bikes first then trickle to the public.... but I would guess it's March before all the stuff in all the sizes is out.
here you goDougSloan
May 21, 2003 10:20 AM
http://www.cbike.com/campagnoloweight.htm

http://www.cbike.com/shimanoweight.htm
Using Doug's link...Dave Hickey
May 21, 2003 11:00 AM
An apples to apples comparision including seatpost and headset, I come up with:

Dura Ace 3095 Grams
Chorus 3176 Grams

Difference is 81 grams or less than a quarter of a pound.
Thanks! just the info i was looking for n/malta825
May 21, 2003 1:12 PM
n/m
core group Record and DA exactly the sameDougSloan
May 21, 2003 1:30 PM
This may not format correctly, but you may be able to decipher it. The core group components listed below is what I'd call a "group" now, as many people use different wheels, headsets, and seatposts. DA and Record are EXACTLY THE SAME! Use a combo of Record and Chorus and you can drop 20 grams. However, buy about $200 worth of Ti and aluminum bolts from SRP and you can knock about 100 grams off the DA group. Nothing available for Campy, as it already uses a lot of Ti bolts in the Record group.

part: da record chorus combo
crankset600 632 667 632
chain 300 279 279 279
bb 173 190 220 190
rear der195 187 209 187
fr der 73 91 102 91
cassette152 156 220 156
calipers307 355 340 340
levers 432 342 365 342
2232 2232 2402 2217
trying againDougSloan
May 21, 2003 1:32 PM

















































































da record chorus combo
crankset 600 632 667 632
chain 300 279 279 279
bb 173 190 220 190
rear der 195 187 209 187
fr der 73 91 102 91
cassette 152 156 220 156
calipers 307 355 340 340
levers 432 342 365 342
2232 2232 2402 2217
Pro peloton prefers Chorus to Record BB...wielerpret
May 23, 2003 2:48 AM
...Because the Campy carbon is widely considered to be less durable. It's a well kept secret, but after my own BB Record bearings gave out, a talkative rider at the LBS spilled the beans. With hindsight I had better bought the complete Chorus gruppo in the first place. Ah, well...
Cheers. Luke. Amsterdam.
on which of your bikes did the bb fail?colker
May 23, 2003 6:25 AM
sachs or trek?
re: Weights between Dura-Ace and Chorus 10s components???russw19
May 21, 2003 4:59 PM
Well now, seeing that Doug went through all that work for you... I was just going to suggest you use a link here to wrenchscience.com and use their bike builder option.. do a build for identical bikes, one DA, one Chorus with the the rest being the parts you are going to use, then subtract the weight of the frame you used as a reference and add the actual weight of your frame and fork and it will tell you what to expect your bike to weight for both builds.

It's easier to do that type.... try it, it's fun too!

Russ