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05-06-12 | 12:13 AM

#44

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.

Quote:

Originally Posted by uspspro

I think I am going to switch from FSA rings to Dura Ace.

Also after doing Devil Mountain Double on the tandem for the 2nd time last weekend.[

] I am ready to put the 28t Salsa granny ring back on. 50-60 cadence for literally a couple hours if you add up the time spent on the steeper grades. Will probably go with a 39t middle again so that we can leave in in the middle ring for most climbs, and even the spread to the 28t.... TDB.

If you are going to get DA chainrings to work with a 39t middle, with how many teeth?

52t...Part No. 100077659...triple
52t...Part No. 100077456...double
53t...Part No. 100077514...double
54t...Part No. 100077486...double

--Are you going to get the Shimano 39t middle?
--Does it matter if the outer chainring is the triple version?
--With 39t, are you limited to 52t, or can you consider 53t?

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