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Old 10-30-14 | 10:50 AM
  #11  
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vqstaphbeard
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Joined: Jan 2012
Posts: 310
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From: Indianapolis, IN

Bikes: AR Cycles Randonneuse, Raleigh Competition, VeloOrange Piolet Prototype, LeJeune Townie, Motobecane Campeur, AR Cycles roadie, Rickert track, Cannondale SM 500, '55 Schwinn

The 840 derailleurs and siblings have Dura-Ace 7400 geometry. There is a guide on the derailleur that can be orientated in two ways. One is for 6 speed or essentially friction and the other is for indexed. Shimano 7400 downtube shifters and brifters will work with the 84x series.

Here is a setup I have with 7400 brifters, Mavic 841 rear derailleur, and 571/2 rear hub:
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