Advertise on Bikeforums.net



User Tag List

Results 1 to 23 of 23
  1. #1
    cs1
    cs1 is offline
    Senior Member cs1's Avatar
    Join Date
    Feb 2004
    Location
    Clev Oh
    My Bikes
    Specialized, Schwinn
    Posts
    6,172
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Shimano Deore upgrade 7 to 9

    I have a really nice Deore 7 speed group. I wanted to put it on a cross bike for a winter project with a set of barcon shifters. 7 speed barcons are hard to find. So, can I upgrade to 9 speed? Some say that the rear der has enough range to handle 9. I have never tried it so I can't tell. I would rather not use friction shifting, so that's not an option.

    Tim
    1999 Waterford RSE-11, 1995 Waterford 1200, 1989 Specialized Rockhopper Comp
    1989 Raleigh Technium, 1989 Schwinn Traveler, 1986 Specialized Rockhopper
    1984 Specialized Stumpjumper, 1986 Specialized Stumpjumper and just way too many projects to list.

  2. #2
    Senior Member
    Join Date
    Dec 2005
    Posts
    203
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    modern day deore IS a 9 speed groupset. it will work, no ifs ands or buts.

    infact im more surprised a 7 speed bike came with deore ? unless its really old deore ?

  3. #3
    Senior Member Grand Bois's Avatar
    Join Date
    Mar 2005
    Location
    Pinole, CA, USA
    Posts
    15,053
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    One option would be to keep it seven speed and use Ultegra eight speed bar end shifters.

    Sheldon Brown says:
    "The 7-speed units are no longer available, but the 8-speed shifters actually work quite well with 7-speed cassettes, especially with modern rear derailers."

    I don't know much about cyclocross, but I do know that seven speed rear wheels are stronger because they have less dish. It seems like that would be a good thing for cyclocross.

  4. #4
    fender bender tool boy's Avatar
    Join Date
    Nov 2006
    Location
    St Paul, MN
    Posts
    65
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    If you want to upgrade to 9 spd your old 7 spd der will work just fine. A new Deore rr der is not that much money in comparison to all the other parts you are going to have to buy to upgrade, so you may want to include it in the new package.

  5. #5
    Get the stick. darkmother's Avatar
    Join Date
    Nov 2004
    Location
    Toronto, ON
    My Bikes
    12 Y.O. Litespeed MTB, IRO Jamie Roy fixie, Custom Habanero Ti 'Cross, No name SS MTB, Old school lugged steel track bike (soon)
    Posts
    1,544
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You can fit 8 cogs of a 9 speed cassette on your 7 speed hub. What I would do is get a MTB 9s cassette, drop the biggest cog, and slide them on. Use 9s barcons. This is the exact setup I use on my cross bike and it works really well. The 7s hub has way less wheel dish, making a stronger wheel.

  6. #6
    cs1
    cs1 is offline
    Senior Member cs1's Avatar
    Join Date
    Feb 2004
    Location
    Clev Oh
    My Bikes
    Specialized, Schwinn
    Posts
    6,172
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Thanks for all the suggestions. It is an old group. I purchased the bike sometime in 1990 when Deore was the king of the MTB groups for Shimano. It has old style thumb shifters. The group isn't as pretty as my Campy Daytona but it just nevers fails. I want that kind of reliability on a cross bike for winter.


    Tim
    1999 Waterford RSE-11, 1995 Waterford 1200, 1989 Specialized Rockhopper Comp
    1989 Raleigh Technium, 1989 Schwinn Traveler, 1986 Specialized Rockhopper
    1984 Specialized Stumpjumper, 1986 Specialized Stumpjumper and just way too many projects to list.

  7. #7
    Call me The Breeze I_bRAD's Avatar
    Join Date
    Aug 2006
    Location
    Corbyville Ontario
    My Bikes
    2004 Litespeed Siena, 1996 Litespeed Obed, 1992 Miele (unknown model), 1982 Meile Uno LS.
    Posts
    3,699
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by cs1
    Thanks for all the suggestions. It is an old group. I purchased the bike sometime in 1990 when Deore was the king of the MTB groups for Shimano. It has old style thumb shifters. The group isn't as pretty as my Campy Daytona but it just nevers fails. I want that kind of reliability on a cross bike for winter.


    Tim
    I have the same group on my city bike- which is just a reincarnation of my mountain bike from around the same period. Solid stuff. Still working flawlessly 15 years in!

  8. #8
    cs1
    cs1 is offline
    Senior Member cs1's Avatar
    Join Date
    Feb 2004
    Location
    Clev Oh
    My Bikes
    Specialized, Schwinn
    Posts
    6,172
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by I_bRAD
    I have the same group on my city bike- which is just a reincarnation of my mountain bike from around the same period. Solid stuff. Still working flawlessly 15 years in!
    It really is amazing how well those old Shimano parts worked. I really don't think the newer version looks or functions nearly as well. Plus they're all painted instead of polished and anodized.

    Tim
    1999 Waterford RSE-11, 1995 Waterford 1200, 1989 Specialized Rockhopper Comp
    1989 Raleigh Technium, 1989 Schwinn Traveler, 1986 Specialized Rockhopper
    1984 Specialized Stumpjumper, 1986 Specialized Stumpjumper and just way too many projects to list.

  9. #9
    Senior Member grolby's Avatar
    Join Date
    Jan 2005
    Location
    BOSTON BABY
    Posts
    6,664
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    8-speed bar-end shifters work just great on a 7-speed cassette. That would save you the expense of a new wheel, new cassette, the more expensive 9-speed shifters, etc. I used 8-speed barcons to shift over a 7-speed cluster for three months or so, never had any problems. The only reason I'm not doing it still was the tragic death of the bike!

  10. #10
    cs1
    cs1 is offline
    Senior Member cs1's Avatar
    Join Date
    Feb 2004
    Location
    Clev Oh
    My Bikes
    Specialized, Schwinn
    Posts
    6,172
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by grolby
    8-speed bar-end shifters work just great on a 7-speed cassette. That would save you the expense of a new wheel, new cassette, the more expensive 9-speed shifters, etc. I used 8-speed barcons to shift over a 7-speed cluster for three months or so, never had any problems. The only reason I'm not doing it still was the tragic death of the bike!
    If that's true then 8 speed barcons might be the way to go. Used 7 speed barcons go for almost as much as new 8 speeds. Most of the time, they are in terrible condition. I always wondered why Shimano didn't put replaceable gears in their barcons like Campy does. It would make life easier.

    Tim
    1999 Waterford RSE-11, 1995 Waterford 1200, 1989 Specialized Rockhopper Comp
    1989 Raleigh Technium, 1989 Schwinn Traveler, 1986 Specialized Rockhopper
    1984 Specialized Stumpjumper, 1986 Specialized Stumpjumper and just way too many projects to list.

  11. #11
    Senior Member Grand Bois's Avatar
    Join Date
    Mar 2005
    Location
    Pinole, CA, USA
    Posts
    15,053
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by cs1
    If that's true then 8 speed barcons might be the way to go. Used 7 speed barcons go for almost as much as new 8 speeds. Most of the time, they are in terrible condition. I always wondered why Shimano didn't put replaceable gears in their barcons like Campy does. It would make life easier.

    Tim
    It's true and I said it first. The Fuji I'm building up now is 7 speed Shimano 600 with 8 speed Ultegra bar end shifters mounted on Suntour thumbshifter mounts.

  12. #12
    Sasquatch Crossing mycoatl's Avatar
    Join Date
    Apr 2005
    Location
    Portlandia
    Posts
    413
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    So are you running 8sp barcons indexed on a 7 sp casette? I didn't realize that the 8 sp spacing was the same as 7 sp (although it makes sense given the different sizes of the respective freehub bodies). If so I'm assuming that you just lock out the 8th position with the RD limit screws. Am I right?

  13. #13
    Senior Member Grand Bois's Avatar
    Join Date
    Mar 2005
    Location
    Pinole, CA, USA
    Posts
    15,053
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by mycoatl
    So are you running 8sp barcons indexed on a 7 sp casette? I didn't realize that the 8 sp spacing was the same as 7 sp (although it makes sense given the different sizes of the respective freehub bodies). If so I'm assuming that you just lock out the 8th position with the RD limit screws. Am I right?
    It's not the same, but it's close enough. See the quote from Sheldon Brown in my original post.

    Yes.

  14. #14
    Get the stick. darkmother's Avatar
    Join Date
    Nov 2004
    Location
    Toronto, ON
    My Bikes
    12 Y.O. Litespeed MTB, IRO Jamie Roy fixie, Custom Habanero Ti 'Cross, No name SS MTB, Old school lugged steel track bike (soon)
    Posts
    1,544
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Yeah, 8spd is 4.8 mm c-c 7 spd is 5mm. Close enough to work fine.

  15. #15
    Do I use too many commas?
    Join Date
    Aug 2006
    Location
    Central New York
    My Bikes
    Giant Yukon SE
    Posts
    621
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You can run any barcon in friction mode.

  16. #16
    Senior Member Grand Bois's Avatar
    Join Date
    Mar 2005
    Location
    Pinole, CA, USA
    Posts
    15,053
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    I wasn't satisfied with the 8 speed bar end shifters (barcon is a trademarked Suntour name) and 7 speed cassette combination when I was using a Sachs derailer, even though it's supposed to be Shimano compatible. I switched to a Shimano derailer and it works great. The front shifter is friction, so you can use any derailer you want to.

    I've got mine mounted like this:

  17. #17
    cs1
    cs1 is offline
    Senior Member cs1's Avatar
    Join Date
    Feb 2004
    Location
    Clev Oh
    My Bikes
    Specialized, Schwinn
    Posts
    6,172
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Dirtdrop
    I wasn't satisfied with the 8 speed bar end shifters (barcon is a trademarked Suntour name) and 7 speed cassette combination when I was using a Sachs derailer, even though it's supposed to be Shimano compatible. I switched to a Shimano derailer and it works great. The front shifter is friction, so you can use any derailer you want to.

    I've got mine mounted like this:
    Dirtdrop: very nice looking setup. Can I ask why you didn't get Shimano thumbies? They are redilly available in 7 speed on ebay. It seems like it would be more expensive to get the SunTour shifters and mount Shimano barcons to them.

    OTH, Shimano 7 speed barcons are getting expensive and hard to find. That's my dilema. Thanks for the input though. I like your SunTour idea. Kind of a poor man's solution to getting Paul Thumbie mounts.

    Tim
    1999 Waterford RSE-11, 1995 Waterford 1200, 1989 Specialized Rockhopper Comp
    1989 Raleigh Technium, 1989 Schwinn Traveler, 1986 Specialized Rockhopper
    1984 Specialized Stumpjumper, 1986 Specialized Stumpjumper and just way too many projects to list.

  18. #18
    Senior Member Grand Bois's Avatar
    Join Date
    Mar 2005
    Location
    Pinole, CA, USA
    Posts
    15,053
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    XT level thumb shifters are not readily available and they go for ridiculously high prices on eBay. I looked for some at a price I was willing to pay for weeks before deciding to buy the used bar end shifters for $20. I already had the Suntour shifters. They came off of my MB-2.

    I was also afraid that if I used the thumbshifters, I won't be able to get parts for them or replace them five years from now. It's at least a possibility with current production bar end shifters.

    Besides, anybody can bolt on thumb shifters. I have something unique.

  19. #19
    cs1
    cs1 is offline
    Senior Member cs1's Avatar
    Join Date
    Feb 2004
    Location
    Clev Oh
    My Bikes
    Specialized, Schwinn
    Posts
    6,172
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Dirtdrop
    XT level thumb shifters are not readily available and they go for ridiculously high prices on eBay. I looked for some at a price I was willing to pay for weeks before deciding to buy the used bar end shifters for $20. I already had the Suntour shifters. They came off of my MB-2.

    I was also afraid that if I used the thumbshifters, I won't be able to get parts for them or replace them five years from now. It's at least a possibility with current production bar end shifters.

    Besides, anybody can bolt on thumb shifters. I have something unique.
    XT thumbies and regular Deore always looked identical to me. Is there a difference. You are correct, the XT do go for ridiculous money.

    Tim
    1999 Waterford RSE-11, 1995 Waterford 1200, 1989 Specialized Rockhopper Comp
    1989 Raleigh Technium, 1989 Schwinn Traveler, 1986 Specialized Rockhopper
    1984 Specialized Stumpjumper, 1986 Specialized Stumpjumper and just way too many projects to list.

  20. #20
    Call me The Breeze I_bRAD's Avatar
    Join Date
    Aug 2006
    Location
    Corbyville Ontario
    My Bikes
    2004 Litespeed Siena, 1996 Litespeed Obed, 1992 Miele (unknown model), 1982 Meile Uno LS.
    Posts
    3,699
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by cs1
    XT thumbies and regular Deore always looked identical to me. Is there a difference. You are correct, the XT do go for ridiculous money.

    Tim
    Don't hold me to this, but I'm pretty sure "Deore" became XT shortly afterwards. Kind of like 600 vs ultegra.

  21. #21
    just keep riding BluesDawg's Avatar
    Join Date
    Feb 2005
    Location
    Milledgeville, Georgia
    My Bikes
    2014 Specialized Crave Pro 29, 2014 Specialized Crux EVO Carbon Disc, 2012 Black Mountain Cycles Monster Cross, 2011 Specialized Roubaix SL3 Expert Compact, 2009 Salsa Casseroll, 2003 KHS Milano Tandem, 1986 Nishiki Cadence rigid MTB
    Posts
    12,704
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    IIRC, DX became Deore. Or was it the other way around?

    +1 on using 8 speed bar end shifters on 7 speed cassettes. I've done that on a couple of bikes with no problems.
    The more you ride your bike, the less your ass will hurt.

  22. #22
    Senior Member
    Join Date
    Dec 2005
    Location
    Charlottesville, Virginia
    My Bikes
    Dawes Kalahari, Puch Prima Super Sport, Graham Weigh 853
    Posts
    1,990
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    An option thus far unmentioned would be to go for a sora 7 speed sti shifter. They work ok, and are reasonably cheap, maybe cheaper than a 7 speed bar end shifter. I've not seen too many in the US, but they are extremely common on cheaper road bikes in Europe.
    Dave

  23. #23
    cs1
    cs1 is offline
    Senior Member cs1's Avatar
    Join Date
    Feb 2004
    Location
    Clev Oh
    My Bikes
    Specialized, Schwinn
    Posts
    6,172
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by acorn_user
    An option thus far unmentioned would be to go for a sora 7 speed sti shifter. They work ok, and are reasonably cheap, maybe cheaper than a 7 speed bar end shifter. I've not seen too many in the US, but they are extremely common on cheaper road bikes in Europe.
    Dave
    I have a set of RSX 7 speed brifters. I was going after a more retro look for this project. I've seen the Sora 7 speeds on ebay for $125 a pair NIB. That is way cheaper than any of the 9 speed Shimano brifters.

    Tim
    1999 Waterford RSE-11, 1995 Waterford 1200, 1989 Specialized Rockhopper Comp
    1989 Raleigh Technium, 1989 Schwinn Traveler, 1986 Specialized Rockhopper
    1984 Specialized Stumpjumper, 1986 Specialized Stumpjumper and just way too many projects to list.

Posting Permissions

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