A while ago I posted about a problem getting my tandem to down shift onto the little ring on my tandem. I got lots of good suggestions and followed up on one from this list and another from the tandem list. Now I have much improved front end shifting.
I did switch to pinned rings. I now realize that the added pressure a tandem puts on the chain and the potential for mis-communication that pinned rings really do work better in this application. I had a set of pinned White Ind. rings which came with the DaVinci cranks when I bought them used. This did require raising the gearing all the way up to 54/44/30, but the smoother shifting offsets the loss of momentum from the old setup. We seem to do OK in a 30/32 up to about a 12% grade, then we just have to push. I also put in a longer BB. The Crank called for either a 110 or 113 and I had the 110. Going to a 113 moved the rings out just enough to give the derailleur a better angle. I ordered the bike with the Campy Triple derailleur but it was actually delivered with Campy Record derailleur. Classy looking, but perhaps less effective with a triple. But then most triples don't begin with a 54 ring! Again, thanks to all who shared their wisdom. Michael -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To view this discussion on the web visit https://groups.google.com/d/msg/rbw-owners-bunch/-/4TxYnuRmaYsJ. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
