Advertise on Bikeforums.net



User Tag List

Results 1 to 12 of 12
  1. #1
    Senior Member 4evrplan's Avatar
    Join Date
    Sep 2009
    Location
    Nacogdoches, TX
    My Bikes
    cheapie Schwinn - ride what you got.
    Posts
    559
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    which torque wrench

    What kind of torque wrench do I need to buy to tighten the allen head bolts on my stem, and how much can I reasonably expect to pay? Also, is there a generic torque spec on stems, or is it stem specific?
    Quote Originally Posted by never View Post
    I think being on the back of a DH tandem would keep me awake.

  2. #2
    Professional Genious
    Join Date
    Jul 2008
    Location
    St. Louis Mo Area
    My Bikes
    1999ish Giant Rincon, 2004 Trek 4900
    Posts
    88
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Well, you could buy almost any torque wrench, but you might want to buy some allen head sockets. I do a lot of automotive work, so I have a top of the line craftsman torque wrench. It snaps when the set torque is reached. There are other kinds (that have a pointer on the handle) that are fine if you can see what you are doing. Should be good for bike work.
    MM
    2005 Giant OCR3
    2004 Trek 4900
    1999 Giant Rincon

  3. #3
    Pwnerer Wordbiker's Avatar
    Join Date
    Jun 2005
    Location
    Pagosa Springs, CO, USA
    My Bikes
    Road, MTB, Cruiser, Chopper, BMX
    Posts
    2,880
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    This is probably the easiest and cheapest option:

    Quote Originally Posted by ahsposo View Post
    Ski, bike and wish I was gay.

  4. #4
    Senior Member JonathanGennick's Avatar
    Join Date
    Apr 2007
    Location
    Munising, Michigan, USA
    My Bikes
    Hifi 29er, Stumpy 29er, Rockhopper 29er, ...
    Posts
    1,762
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by 4evrplan View Post
    Also, is there a generic torque spec on stems, or is it stem specific?
    Torque is stem-specific. There's probably a general range into which many stems fall, but I have at least one stem with quite a high torque specification stamped on it.

    What I don't like are stemps with no markings at all about torque. For those, I go by feel and by guess. But with a torque wrench, I can even then make sure that at least both bolts are tightened identically. Even without a torque spec, I believe there is value in having both binder bolts at equal tension.

  5. #5
    Senior Member
    Join Date
    May 2004
    Location
    Wilmington, DE
    My Bikes
    2003 Specialized Hardrock, 2004 LOOK KG386i, 2005 Iron Horse Warrior Expert, 2009 Pedal Force CX1
    Posts
    8,849
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by mwmcginn View Post
    Well, you could buy almost any torque wrench, but you might want to buy some allen head sockets. I do a lot of automotive work, so I have a top of the line craftsman torque wrench. It snaps when the set torque is reached. There are other kinds (that have a pointer on the handle) that are fine if you can see what you are doing. Should be good for bike work.
    No, you can't just buy any torque wrench. The torque spec for stems will be too low for most torque wrenches, especially those used for automotive work. My 1/2" drive wrench *starts* at 25 ft.*lbs (40 N*m). You'll want to find a torque wrench with a minimum torque setting of 2-4 N*m (25-40 IN*lbs.) to be able to use it on stems and other hardware on bikes which tend to have a torque spec of 5-7 N*m. I have a 3/8" drive that goes this low but most will be 1/4" drive. You will need hex bit sockets though to work with the wrench. Don't skimp on these.

  6. #6
    A little North of Hell
    Join Date
    Mar 2006
    Posts
    4,354
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    torque driver

    I like torque-drivers for lower torque value fasteners.
    [SIGPIC][/SIGPIC]
    XXXI

  7. #7
    Senior Member
    Join Date
    Feb 2005
    Location
    Oklahoma
    My Bikes
    Trek 5500, Colnago C-50
    Posts
    9,087
    Mentioned
    2 Post(s)
    Tagged
    0 Thread(s)
    I'd use a 1/4" drive beam wrench. It needs to read low range torque accurately.

  8. #8
    Senior Member 4evrplan's Avatar
    Join Date
    Sep 2009
    Location
    Nacogdoches, TX
    My Bikes
    cheapie Schwinn - ride what you got.
    Posts
    559
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    I really like that Ritchey tool, but I think I'll go with something more general purpose so I can use it for unrelated future projects. Perhaps a Craftsman beam type that measuers in-lbs. Thanks to all for the input.
    Quote Originally Posted by never View Post
    I think being on the back of a DH tandem would keep me awake.

  9. #9
    Professional Genious
    Join Date
    Jul 2008
    Location
    St. Louis Mo Area
    My Bikes
    1999ish Giant Rincon, 2004 Trek 4900
    Posts
    88
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by joejack951 View Post
    No, you can't just buy any torque wrench. The torque spec for stems will be too low for most torque wrenches, especially those used for automotive work. My 1/2" drive wrench *starts* at 25 ft.*lbs (40 N*m). You'll want to find a torque wrench with a minimum torque setting of 2-4 N*m (25-40 IN*lbs.) to be able to use it on stems and other hardware on bikes which tend to have a torque spec of 5-7 N*m. I have a 3/8" drive that goes this low but most will be 1/4" drive. You will need hex bit sockets though to work with the wrench. Don't skimp on these.
    Excellent point, get a wrench that supports the level of torque you will want.
    MM
    2005 Giant OCR3
    2004 Trek 4900
    1999 Giant Rincon

  10. #10
    Senior Member
    Join Date
    May 2005
    Location
    Terre Haute, Lafayette, or Indianapolis, IN, depending on the day
    My Bikes
    n, I would like n+1
    Posts
    1,917
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Other than the obvious part about buying a torque wrench which ranges around the torque you want to measure, don't buy it from a bike company. Mind you I'm sure the torque wrenches from Park work great, as do the one from the guy I met at Interbike a couple years ago. However, they cost at least twice as much as a comparable one from a place like Sears, and I'm not convinced that they are any better.

  11. #11
    cab horn
    Join Date
    Jun 2004
    Location
    Toronto
    My Bikes
    1987 Bianchi Campione
    Posts
    28,295
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by JonathanGennick View Post
    What I don't like are stemps with no markings at all about torque.
    Because they will have provided this with the instructions or another document.
    Mes compaingnons cui j'amoie et cui j'aim,... Me di, chanson.

  12. #12
    Senior Member
    Join Date
    Feb 2009
    Posts
    3,969
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by 4evrplan View Post
    I really like that Ritchey tool, but I think I'll go with something more general purpose so I can use it for unrelated future projects. Perhaps a Craftsman beam type that measuers in-lbs. Thanks to all for the input.
    Best way to go. It's great to have the right tool for a job.
    The beam type are the most accurate.

Posting Permissions

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