That derailleur would do every shift except the shift from the 24 to the 34. To go from the 24 to the 34 you would have to go all the way to the 44 and then back down to the 34. To shift 44-34-24 cleanly, you need a derailleur that has a much lower inner plate.
On Sun, Nov 17, 2019 at 2:19 PM j.schwartz <[email protected]> wrote: > Thank you for this. > I have had luck pushing the limits but in this case, I'll just get a > triple specific FD. > was tempted by the price on that Claris. > > > On Sunday, November 17, 2019 at 1:51:27 PM UTC-5, aeroperf wrote: >> >> >> The Claris FD-R2400 that came with the double Suguino XD2 on my Sam did >> not have enough throw when I took off the bashguard and added a third ring. >> My rings were 46-36-26. It was not an adjustment thing. The 2400 was >> not physically able to move far enough. >> The FD-R2000 lists the same 43.5 chainline as the 2400. So I would say >> NO. >> >> I would suggest going to a triple, like a Sora FD-R3030. >> >> The chainline thing is interesting. Chainrings are typically 5mm apart. >> The chainline is the middle of the chainring set, measured in mm from the >> bike centerline. >> For road bikes, Shimano spec, a double crankset has one ring at 41 and >> one ring at 46. For triples, one ring is at 40, one at 45, and one at 50. >> So the chainline for a double is at 43.5, and the shifter has to be able >> to bring the chain in to 41 and out to 46. For a triple the chainline is >> at 45 and it has to bring it in to 40 and out to 50. >> >> That's Shimano spec. Rivs Silver cranks are installed with bottom >> brackets that move the chainline out to 47, probably because of the 135mm >> rear (MTB) spacing. >> Now a Shimano road double derailleur would have to be able to move to >> about 52, plus some for adjustment, to the outside of a triple on a Riv. >> They're just not designed for that. >> >> -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/rbw-owners-bunch/31f228e3-3dd1-461d-91ea-6ae74952ed44%40googlegroups.com > <https://groups.google.com/d/msgid/rbw-owners-bunch/31f228e3-3dd1-461d-91ea-6ae74952ed44%40googlegroups.com?utm_medium=email&utm_source=footer> > . > -- Peter White -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/rbw-owners-bunch/CA%2BD%3DXm-scUjpfH67QXa2-da6qpDoOj%2BM9G8gPOL44cVWcgYP1A%40mail.gmail.com.
