Jason, I don't know which model of Simplex you have, but use caution with old French bike parts! I have a number of Simplex derailleurs, I do not have a front Simplex derailleur that will handle a triple. Many of the Simplex rear derailleurs struggle with a 28, let alone a 30. There were also some Simplex specific rear derailleur mountings a long time ago.
I love old French bike parts and I love riding my bikes, because the were often in conflict I have given up trying to make old French bike parts work (they usually don't)....except for the Simplex Retrofriction shifters recently given to me... :-) One really cool thing about Simplex derailleurs....the plastic ones were often one badly missed shift away from scattering the road with broken derailleur parts and one's lost dignity...they seemed to add a small element of excitement to the ride :-) I recently converted my Rambouillet from a triple (24-36-50) to a double (34-50). I removed the inner chain-ring from a Ritchey Logic triple and changed to a shorter bottom bracket spindle. I don't see the point of going from a triple to a double and keeping the same BB/Q factor. Which reminds me, now that it is a double I can use that plastic Simplex front derailleur! Angus On May 29, 9:08 am, jandrews_nyc <jasonaschwa...@gmail.com> wrote: > Hi, > > I recently acquired a used Bleriot frameset from someone on this group > (thanks Brad!) and I'm starting to build it up. > I'm mechanically inclined but this will be my first experience with > gearing and selecting chainrings / cogs. > As a compliment to my beefier touring-specific Hillborne, this budget- > minded Bleriot will be more retro and city-fied and it will be set up > for comfort with Albatross bars, dia-comp centerpulls, VO city brake > levers. I've also been given a set of NOS simplex front and rear > derailleurs (sx610 in the rear I believe, not sure of the front model) > and from what I understand they work beautifully with 7 speed > cassettes. The rear is rated for a max cog of 28t...but I think that > is a conservative figure. I will also be using a set of stem mounted > friction shifters (either Simplex or Suntour..which I have laying > around). I think they are both supposed to be for 10 speeds...but > will play around to see if they will work with 7 in the back and a > compact double up front. > Which brings me to my question...as I'm unsure of how to arrange the > crankset and what cassette to use in the back. > I would like to use a 13-30 7speed cassette but am worried about the > rear derailleur being able to handle that. > so maybe a 12-28...but then what up front? I'm more concerned with > commuting, riding out of the city on occasion which includes hills, > carrying a modest load, etc. I certainly don't feel like using > anything bigger than a 48t up front and based on how I would like this > bike to ride..I'm feeling something like a 44t / 28t compact double. > I'm finding that my crankset choices are limited if I want to set > something up as described. I don't want to spring for a TA, but > aren't there other choices out there that would enable me to set this > up? From my limited research, I think Shimano is out. > I hope the post makes sense and apologies if I'm re-hashing ground > that was already recently covered. > Any suggestions would be greatly appreciated! > Jason -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to rbw-owners-bu...@googlegroups.com. To unsubscribe from this group, send email to rbw-owners-bunch+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
