Advertise on Bikeforums.net



User Tag List

Results 1 to 7 of 7
  1. #1
    Senior Member
    Join Date
    Mar 2008
    Posts
    97
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Bridgestone RB-2 Info Needed!

    Hi all, I just picked up a '93 Bridgestone RB-2. First of all, I barely know anything about roadbikes. Although I did a lot of research I'm still pretty sketchy on some stuff.

    I looked up the year and model from Sheldon Brown's website, and I've figured out that it's a 1993 Bridgestone RB-2. It came stock with Shimano Exage(?) components, and looking over the bike, it does have some parts labelled "400EX". The previous owner also swapped out the rear derailleur, and front and rear brakes for Shimano 600. The rear hub is also a Shimano Ultegra.

    The only problem I can detect is that something is scraping when I shift to a certain gear. Do I have to adjust my derailleur? Seems like the chain is rubbing against the larger chainring.

    Does anyone know how competent this bike is? It seems pretty light. In fact, it's lighter than my track bike.

    Also, does anyone know how difficult it would be to convert the downtube shifters onto the brakes/hoods?


  2. #2
    Senior Member miamijim's Avatar
    Join Date
    Aug 2003
    Location
    Tampa, Florida
    Posts
    12,080
    Mentioned
    27 Post(s)
    Tagged
    1 Thread(s)
    If your in the smallest cog in the back and the smallest chainring in the front the chain may rub on the inside of the large chainring, thats just the way it is. Thats one of the the combinations thats NOT recommended. Try to avoid small/small and large/large.

    According to my 1993 catalog your bike had 400ex derailleurs and shift levers w/ a 500ex rear hub. Obviously someone made some changes.
    WWW.CYCLESPEUGEOT.COM 2005 Pinarello Dogma; 1991 Paramount PDG 70 Mtb; 1976? AD Vent Noir; 1989 LeMond Maillot Juane F&F; 1993? Basso GAP F&F; 1989 Terry Symmetry; 2003 Trek 4700 Mtb; 1983 Vitus 979

  3. #3
    Let your bike be the tool cranky old road's Avatar
    Join Date
    Jun 2006
    Location
    NC/SC border
    My Bikes
    '66 Raleigh Carlton, '70 Ron Cooper, '95 Bianchi CD'I, Zonal Frame with Xenon gruppo, Carbon Frame with Record Gruppo, Columbia Twosome, Terry Classic, Bianchi SX, Gravity SS/FG
    Posts
    829
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    That's a beautiful bike. If you're asking about changing the downtube shifters to indexed shifters combined with brake levers in the hoods, you'd pretty much have to replace the entire drive train: derailleurs, chain, rear cogs (and wheel), and crankset. You'd also likely need to spread your rear dropouts further apart. IMHO you should stick with the downtube shifters, they'll work great when you get used to them. Looks like a pretty small frame. Are you a small person?
    Never try to teach a pig to sing...

  4. #4
    CroMosexual purevl's Avatar
    Join Date
    May 2007
    Location
    Murray, Ky
    Posts
    658
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by cranky old road View Post
    If you're asking about changing the downtube shifters to indexed shifters combined with brake levers in the hoods, you'd pretty much have to replace the entire drive train: derailleurs, chain, rear cogs (and wheel), and crankset. You'd also likely need to spread your rear dropouts further apart.
    Oh please
    Any 7 or 8 speed (Non-DA) STI levers should work just peachy with what you have. If you use 8 speed levers on a 7 speed cassette you will have one extra click that doesn't do anything, but the spacing is the same. Depending on how your chainstay clearance looks, you can also just replace the 7 speed cassette with an 8 speed cassette. You'll need the levers, stops that bolt on to the shifter bosses and new cables/housing. That's it, I can't begin to guess at the reasoning that would have you swap the entire drivetrain, the tri-color series included STI levers for pete's sake.
    If wanting fair bike prices makes me a leftist I don't wanna be right.

  5. #5
    Senior Member miamijim's Avatar
    Join Date
    Aug 2003
    Location
    Tampa, Florida
    Posts
    12,080
    Mentioned
    27 Post(s)
    Tagged
    1 Thread(s)
    Quote Originally Posted by purevl View Post
    Oh please
    Any 7 or 8 speed (Non-DA) STI levers should work just peachy with what you have. If you use 8 speed levers on a 7 speed cassette you will have one extra click that doesn't do anything, but the spacing is the same. Depending on how your chainstay clearance looks, you can also just replace the 7 speed cassette with an 8 speed cassette. You'll need the levers, stops that bolt on to the shifter bosses and new cables/housing. That's it, I can't begin to guess at the reasoning that would have you swap the entire drivetrain, the tri-color series included STI levers for pete's sake.
    +1. It'll work.
    WWW.CYCLESPEUGEOT.COM 2005 Pinarello Dogma; 1991 Paramount PDG 70 Mtb; 1976? AD Vent Noir; 1989 LeMond Maillot Juane F&F; 1993? Basso GAP F&F; 1989 Terry Symmetry; 2003 Trek 4700 Mtb; 1983 Vitus 979

  6. #6
    Let your bike be the tool cranky old road's Avatar
    Join Date
    Jun 2006
    Location
    NC/SC border
    My Bikes
    '66 Raleigh Carlton, '70 Ron Cooper, '95 Bianchi CD'I, Zonal Frame with Xenon gruppo, Carbon Frame with Record Gruppo, Columbia Twosome, Terry Classic, Bianchi SX, Gravity SS/FG
    Posts
    829
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    It seems I am incorrect.
    Never try to teach a pig to sing...

  7. #7
    Senior Member miamijim's Avatar
    Join Date
    Aug 2003
    Location
    Tampa, Florida
    Posts
    12,080
    Mentioned
    27 Post(s)
    Tagged
    1 Thread(s)
    STI's would've have worked with the original Exage stuff......
    WWW.CYCLESPEUGEOT.COM 2005 Pinarello Dogma; 1991 Paramount PDG 70 Mtb; 1976? AD Vent Noir; 1989 LeMond Maillot Juane F&F; 1993? Basso GAP F&F; 1989 Terry Symmetry; 2003 Trek 4700 Mtb; 1983 Vitus 979

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •