This is indeed a workable solution, and I have tried it myself. Riv. sells the chainguards. It still left me with the need to disassemble the entire crank every time it needed to be cleaned, and it's not the best looking set up in the world. Michael
On May 29, 3:09 pm, charlie <charles_v...@hotmail.com> wrote: > Just use a Sugino triple crank and replace the outer ring with a > circular chain guard (if you can find one). Or use and old, worn outer > chain ring and grind the teeth off. Doing this will allow you the 74 > bcd inner diameter spacing for as low as 24 teeth and you can get a > mid ring around 42-46 teeth quite easily. I may do this very thing on > my backup bike. You may want to play around with bottom bracket axle > lengths to favor one side of the cogset or the other depending on > terrain or just center the chainrings and ride. You may want to do > some gear charts from Sheldon Browns gear calculator to see what works > best but I like the idea of 42x28 coupled with a 12-28 seven speed > although I live in a hilly area and coast the downhills. If you ride > mostly on the flats a 44-46 big ring might make more sense but I > rarely use a gear bigger than around 80+ inches unless I have a > downgrade or a good tailwind. If so, a 30-34 tooth might suffice for > the occasional steep climb. > I recently re-built one of my old vintage frames with all the stuff I > could scrounge in my garage and viola I have another complete bike to > ride or sell. I contemplated the same double setup and just used the > triple I already had so I may not change it. Its nice to have a 24x28 > and a 46x12 on the same bike. Not as nifty but nice for a old, heavy > rider, living amongst a bunch of hills. > > On May 29, 7:08 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.
