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Shimano 2004 Dura ace hub,cass and R. derailleur(7 posts)

Shimano 2004 Dura ace hub,cass and R. derailleurGiant Joe
Mar 21, 2003 12:33 AM
For anyone that meeds their daily fix of 2004 10Sp dura Ace
Last picture on this link
If It dosn't link first time,try click again seems to work.
looks like campy a couple of years ago!nmthe bull
Mar 21, 2003 12:43 AM
Rapid rise Rear Derailleur???biknben
Mar 21, 2003 6:20 AM
Notice that the Rear der. doesn't have a cable but is stretched across the cog. Looks like Rapid Rise to me.

I can't say I've seen drive side radial lacing either. I guess to save space on the drive side.

What's "Rapid Rise"? (NM)mattcrout
Mar 21, 2003 10:29 AM
a.ka. bass-ackwards...TJeanloz
Mar 21, 2003 12:09 PM
"Rapid Rise" is a system that has curiously been used on both Shimano's highest end MTB group (XTR) and lowest end hybrid groups, but nothing in between. It effectively reverses the spring tension in the derailluer, so that the rear derailluer's 'natural' position is on the largest cog, instead of the smallest. Moving down the cogset increases the tension on the cable (which is opposite a traditional derailluer). The supposed advantage is that it allows for smoother and faster downshifts. It's also more intiutive, because the same action on either left or right shifter results in the same thing (i.e. you push the little lever, you get an easier gear, on both sides).
If you break anything in the last km of a race,Spunout
Mar 21, 2003 12:55 PM
you are spinning in your largest cog. Anyone else, can grind away in top gear.

that could be a good thing...the bull
Mar 22, 2003 10:29 AM
ona mountian bike but a disaster on a road bike!!!