Advertise on Bikeforums.net



User Tag List

Results 1 to 17 of 17
  1. #1
    Senior Member
    Join Date
    Apr 2007
    Location
    nc
    My Bikes
    '06 Tirreno Razza 2000, 1990 torelli , 1984 redline PL-20
    Posts
    189
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    last sti upgrade question

    I'm upgrading my older bike to sora shifters. Right now it is a 7 speed (126mm d/o). I am happy with the 7 speed. I have the old style cassette. I have been told the old style cassette will work ok, but might not be as smooth of a shift as a new bike because the spacing is different on my cassette. Can I put a new cassette on the wheel I have now? Will that make it shift smoother? thanks

  2. #2
    Senior Member
    Join Date
    Aug 2005
    Location
    Pittsburgh, PA
    My Bikes
    '''96 Litespeed Catalyst, '05 Litespeed Firenze, '06 Litespeed Tuscany, '12 Surly Pacer, All are 3x8,9 or 10. It is hilly around here!
    Posts
    26,130
    Mentioned
    12 Post(s)
    Tagged
    0 Thread(s)
    Are you staying with 7-speed? If so, any Shimano 7-speed cassette will continue to work as well as your current one.

    If you are upgrading to 8-speed (or 9 or 10-speed), your 7-speed shifters won't index as well with 8 and not at all with 9 or 10. Also, your current freehub won't accept an 8/9/10-speed cassette and you will have to spread your frame dropouts to 130 mm to accept the wider hub needed with these cassettes.

  3. #3
    Senior Member
    Join Date
    Apr 2007
    Location
    nc
    My Bikes
    '06 Tirreno Razza 2000, 1990 torelli , 1984 redline PL-20
    Posts
    189
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I'm going to stay with the 7 speed because I don't want to spread the d/outs. I was just wondering if I should get a new cassette and cogs or just use the old one I have on there. I was told the new cassettes have different spacing.

  4. #4
    Death fork? Naaaah!! top506's Avatar
    Join Date
    Nov 2005
    Location
    The other Maine, north of RT 2
    My Bikes
    '71 Gitane Super Corsa, '73 Atala Giro d'Italia, '73 Schwinn Super Sport, '76 Viscount Aerospace Pro, '81 Miyata 710, '81 Lotus Classique, '84 Ross Signature 290s, '84 Shogun 500, '85 Miele Gara, '87 Miyata 512, '89 Centurion Ironman, many more
    Posts
    3,133
    Mentioned
    10 Post(s)
    Tagged
    0 Thread(s)
    A seven speed Shimano cassette/freewheel is a seven speed Shimano cassette/freewheel, whether it was made in 1987 or 2007 (unless it's Dura Ace )
    Top
    You know it's going to be a good day when the stem and seatpost come right out.

  5. #5
    Senior Member
    Join Date
    Apr 2007
    Location
    nc
    My Bikes
    '06 Tirreno Razza 2000, 1990 torelli , 1984 redline PL-20
    Posts
    189
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ok thanks.

  6. #6
    Senior Member grolby's Avatar
    Join Date
    Jan 2005
    Location
    BOSTON BABY
    Posts
    7,088
    Mentioned
    7 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by top506
    A seven speed Shimano cassette/freewheel is a seven speed Shimano cassette/freewheel, whether it was made in 1987 or 2007 (unless it's Dura Ace )
    Top
    Nope. A 7-speed Shimano cassette/freewheel is a 7-speed Shimano cassette/freewheel, whether it was made in 1987 or 2007, irrespective of the group level. Only shifters and derailers are DA specific.

    Seriously, you can get 7-speed Sora shifters. That's the upgrade path I plan to eventually follow on my '87 road bike. Alternatively, 8-speed shifters will index just dandy on a 7-speed cassette/freewheel. You'd have to be really picky to notice any problems. But the best solution is to go with 7-speed Sora shifters, which are cheaper anyway.

  7. #7
    Death fork? Naaaah!! top506's Avatar
    Join Date
    Nov 2005
    Location
    The other Maine, north of RT 2
    My Bikes
    '71 Gitane Super Corsa, '73 Atala Giro d'Italia, '73 Schwinn Super Sport, '76 Viscount Aerospace Pro, '81 Miyata 710, '81 Lotus Classique, '84 Ross Signature 290s, '84 Shogun 500, '85 Miele Gara, '87 Miyata 512, '89 Centurion Ironman, many more
    Posts
    3,133
    Mentioned
    10 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by grolby
    Nope. A 7-speed Shimano cassette/freewheel is a 7-speed Shimano cassette/freewheel, whether it was made in 1987 or 2007, irrespective of the group level. Only shifters and derailers are DA specific.
    In the interest of brevity, I stand by my statement.
    AND I have a bunch of Biopace rings. PM me for specific wants/needs.
    Top
    You know it's going to be a good day when the stem and seatpost come right out.

  8. #8
    Senior Member Bill Kapaun's Avatar
    Join Date
    Feb 2007
    Location
    Mid Willamette Valley, Orygun
    My Bikes
    86 RockHopper,2008 Specialized Globe. Both upgraded to 9 speeds.
    Posts
    7,357
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    "I'm going to stay with the 7 speed because I don't want to spread the d/outs."

    4mm is only .16" You can "spring" the dropouts that much without problem when changing tires etc. It makes it a LITTLE bit of a pain, but nothing major.

  9. #9
    ThreadKiller Evoracer's Avatar
    Join Date
    Sep 2006
    Location
    Disneyland, Ca
    Posts
    229
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Spread the d's...

  10. #10
    Senior Member
    Join Date
    Apr 2007
    Location
    nc
    My Bikes
    '06 Tirreno Razza 2000, 1990 torelli , 1984 redline PL-20
    Posts
    189
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    the LBS said if I go to 8 speed I have to get a new cassette and wheel. I don't mind springing for the cassette but i don't want to go for the wheel. That will just bring up the cost too much for it to be worth it to me.

  11. #11
    Senior Member
    Join Date
    Dec 2006
    Location
    Aurora,CO
    Posts
    298
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    how old is the rear wheel. Shimano's first style of cassette didnt have the lockring of todays as the first position screwed onto the cassette body and was the lockring. If thats what you have there probably isn't any threads for the current style lockring meaning not being able to go to 8 spd with that wheel.

  12. #12
    Senior Member
    Join Date
    Apr 2007
    Location
    nc
    My Bikes
    '06 Tirreno Razza 2000, 1990 torelli , 1984 redline PL-20
    Posts
    189
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    thats correct mtnbkr

  13. #13
    * vpiuva's Avatar
    Join Date
    Jan 2007
    Posts
    3,458
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    You're fine. A Shimano 7 speed hub has seven speed spacing, no matter if it's a freewheel, Uniglide or Hyperglide, RX100 or Dura-Ace. Check Sheldon Brown http://sheldonbrown.com/k7.html if you're still concerned.

    Your biggest issue will be lack of Uniglide cogs/cassettes as yours wear out, but that will be later. Keep your eyes open and pick up an inexpensive Hyperglide hub or wheel in the meantime. Go for it and enjoy.

  14. #14
    Death fork? Naaaah!! top506's Avatar
    Join Date
    Nov 2005
    Location
    The other Maine, north of RT 2
    My Bikes
    '71 Gitane Super Corsa, '73 Atala Giro d'Italia, '73 Schwinn Super Sport, '76 Viscount Aerospace Pro, '81 Miyata 710, '81 Lotus Classique, '84 Ross Signature 290s, '84 Shogun 500, '85 Miele Gara, '87 Miyata 512, '89 Centurion Ironman, many more
    Posts
    3,133
    Mentioned
    10 Post(s)
    Tagged
    0 Thread(s)
    Some Shimano 7 speed cassette hubs are threaded on the outside for Uniglide cogs and on the inside for Hyperglide lockrings (HG-50 /Exage comes to mind). A quick check might be in order.
    Top
    You know it's going to be a good day when the stem and seatpost come right out.

  15. #15
    ThreadKiller Evoracer's Avatar
    Join Date
    Sep 2006
    Location
    Disneyland, Ca
    Posts
    229
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by top506
    Some Shimano 7 speed cassette hubs are threaded on the outside for Uniglide cogs and on the inside for Hyperglide lockrings (HG-50 /Exage comes to mind). A quick check might be in order.
    Top

    +1

  16. #16
    Senior Member
    Join Date
    Apr 2007
    Location
    nc
    My Bikes
    '06 Tirreno Razza 2000, 1990 torelli , 1984 redline PL-20
    Posts
    189
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    ok thanks to everyone for their input.-- I just got the back back from the LBS today. Went with 7 speed sora's--kept the rear cassette the same. Seems to shift pretty good. LBS charged me $140 for shifters and new cables-- $45.00 to install shifters new stem (labor) , and 18.00 for new hb tape. got a cheap stem ($20.00) put on because original stem was only 70 mm. --11.95 to adjust barrells?? total cost was $253 with tax. I thought it was well worth it. thanks again for everyones input

  17. #17
    Your mom
    Join Date
    Aug 2006
    Posts
    2,547
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Ouch. None of my bikes cost that much.

Posting Permissions

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