Advertise on Bikeforums.net



User Tag List

Page 1 of 2 12 LastLast
Results 1 to 25 of 46
  1. #1
    Senior Member
    Join Date
    Sep 2008
    Location
    Northern, CA Save Our Potholes!
    My Bikes
    Varies
    Posts
    95
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)

    Left hand thread trivia challenge

    We all know the common examples of where left hand threads are found:

    On bicycles, left hand threads are used mainly in three places, on left pedals, right bottom bracket (BB) bearing cups, and freewheel cones ... Jobst Brandt as on Sheldon's site.

    I would like to learn of any others such as UST threaded eyelets and so on...

    Thank you all!

  2. #2
    Senior Member
    Join Date
    Sep 2008
    Location
    Northern, CA Save Our Potholes!
    My Bikes
    Varies
    Posts
    95
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Track lock rings? More?

  3. #3
    Senior Member BCRider's Avatar
    Join Date
    Mar 2008
    Location
    The 'Wack, BC, Canada
    My Bikes
    Norco (2), Miyata, Canondale, Soma, Redline
    Posts
    5,410
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The bearing cup inside Shimano freehubs.
    Model airplanes are cool too!.....

  4. #4
    wheelin in the years ebr898's Avatar
    Join Date
    Jul 2005
    Location
    Kansas
    My Bikes
    Some Schwinns, a Gary Fisher, some vintage lt wts
    Posts
    667
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The hose hook up and regulator conection on Ox-Acy torch.

  5. #5
    Senior Member
    Join Date
    May 2008
    Location
    Houston, TX
    My Bikes
    Giant FCR3, Cannondale Synapse Carbon
    Posts
    191
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The lug nuts on 1950s Chrysler products, on the driver's side, were left-hand threads.

  6. #6
    You Know!? For Kids! jsharr's Avatar
    Join Date
    Apr 2005
    Location
    Just NW of Richardson Bike Mart
    My Bikes
    '05 Trek 1200 / '90 Trek 8000 / '? Falcon Europa
    Posts
    6,082
    Mentioned
    11 Post(s)
    Tagged
    3 Thread(s)
    On turnbuckles on sail boats.
    Are you a registered member? Why not? Click here to register. It's free and only takes 27 seconds! Help out the forums, abide by our community guidelines.
    Quote Originally Posted by colorider View Post
    Phobias are for irrational fears. Fear of junk ripping badgers is perfectly rational. Those things are nasty.

  7. #7
    Senior Member
    Join Date
    Sep 2008
    Location
    Northern, CA Save Our Potholes!
    My Bikes
    Varies
    Posts
    95
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Cool answers. I was looking for bike stuff, arguably the torch is... These are fun though!
    How about outboard end of lathe for turning bowls?
    And weed-eater nut for holding the spool on?

  8. #8
    Senior Member BCRider's Avatar
    Join Date
    Mar 2008
    Location
    The 'Wack, BC, Canada
    My Bikes
    Norco (2), Miyata, Canondale, Soma, Redline
    Posts
    5,410
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Usually it's the one that I just stripped the hex off from trying to undo it the wrong way.....
    Model airplanes are cool too!.....

  9. #9
    Mad bike riding scientist cyccommute's Avatar
    Join Date
    Nov 2004
    Location
    Denver, CO
    My Bikes
    Some silver ones, a black one, a red one, an orange one and a couple of titanium ones
    Posts
    15,320
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by j mendivil View Post
    We all know the common examples of where left hand threads are found:

    On bicycles, left hand threads are used mainly in three places, on left pedals, right bottom bracket (BB) bearing cups, and freewheel cones ... Jobst Brandt as on Sheldon's site.

    I would like to learn of any others such as UST threaded eyelets and so on...

    Thank you all!
    Power saw blade attachment nuts or screws. You don't what them backing out
    Stuart Black
    Solo Without Pie. The search for pie in the Midwest.
    Picking the Scablands. Washington and Oregon, 2005. Pie and spiders on the Columbia River!
    Days of Wineless Roads. Bed and Breakfasting along the KATY
    Twisting Down the Alley. Misadventures in tornado alley.
    An Good Ol' Fashion Appalachian Butt Whoopin'.

  10. #10
    Senior Member
    Join Date
    Oct 2005
    Posts
    5,426
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Saab belt tensioner pulley bolt. Ask me how I know NOW that its left hand threaded. Left hand thread stuff should be prominently marked as left hand threaded!
    Il faut de l'audace, encore de l'audace, toujours de l'audace

    1980 3Rensho-- 1975 Raleigh Sprite 3spd
    1990s Raleigh M20 MTB--2007 Windsor Hour (track)
    1988 Ducati 750 F1

  11. #11
    Senior Member CACycling's Avatar
    Join Date
    Feb 2008
    Location
    Oxnard, CA
    My Bikes
    '08 Fuji Roubaix RC; '07 Schwinn Le Tour GS; '92 Diamond Back Ascent EX
    Posts
    4,432
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Most hot water faucet stems.

  12. #12
    surly old man jgedwa's Avatar
    Join Date
    Sep 2006
    Location
    Carlisle, PA
    My Bikes
    IRO Mark V, Karate Monkey half fat, Trek 620 IGH, Cannondale 26/24 MTB, Amp Research B3, and more.
    Posts
    3,274
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    The little knob on the end of horizontal dropout adjustment screws.

    The cover plate (or whatever you call it; I only mess with them when destructively removing a FW) on old freewheels.

    jim
    Cross Check Nexus7, IRO Mark V, Trek 620 Nexus7, Karate Monkey half fat, IRO Model 19 fixed, Amp Research B3, Surly 1x1 half fat fixed, and more...
    --------------------------
    SB forever

  13. #13
    Senior Member
    Join Date
    Sep 2008
    Location
    Northern, CA Save Our Potholes!
    My Bikes
    Varies
    Posts
    95
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    What about those fishing reels with the bails on them, doesn't either the spool or the plastic keeper have left hand threads?

  14. #14
    Senior Member
    Join Date
    Jul 2008
    Location
    Knoxville, TN
    My Bikes
    Klein
    Posts
    907
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    BMW fan pulley nuts are LH threaded.

  15. #15
    slow as I ever was Ex Pres's Avatar
    Join Date
    Dec 2007
    Location
    an imposter living in the 35223
    Posts
    5,627
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by flanso View Post
    The lug nuts on 1950s Chrysler products, on the driver's side, were left-hand threads.
    Earlier than that, too. My '49 DeSoto had 'em.
    72 special CNC ___________ 72 Frejus (ala Legnano) __73 Holdsworth Record
    78 Raleigh Professional_____ 80 Ranson_____________ 80 unknown French (SS)
    82 Peugeot PXN10_________83 Trek 620 (nee 600)____ 85 Gianni Motta
    85 Trek 560______________88 Guerciotti GLX
    90 Miele Gara_____________02 Casati Dardo (g/blue)__02 Casati Dardo (y/blk)
    03 Casati Dardo___________08 BF IRO (fixed)________10 Vassago Fisticuff (IGH)

  16. #16
    Senior Member
    Join Date
    Apr 2006
    Posts
    2,139
    Mentioned
    1 Post(s)
    Tagged
    0 Thread(s)
    The nuts/sockets to tighten bar end shifters to handle bars. Roger

  17. #17
    Senior Member Retro Grouch's Avatar
    Join Date
    Feb 2004
    Location
    St Peters, Missouri
    My Bikes
    Rans Enduro Sport, Hase Kettweisel Tandem, Merin Bear Valley beater bike
    Posts
    23,615
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Here's a useful bit of related trivia:

    Check out your left pedal. Most of the time the spindle will be knerled or marked in some similar manner. Left hand threaded parts are commonly, but not always so marked.

  18. #18
    My bikes became Vintage OLDYELLR's Avatar
    Join Date
    Aug 2005
    Location
    Ontario, Canada
    Posts
    1,094
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    My 1965 MGB had a LH thread on the right side knock-off hubcaps.
    1981 Nishiki Ultimate
    1977 Nishiki Landau
    1967 Jeunet Captivante track bike
    1951 Claud Butler New Allrounder under construction
    "index shifters = frets on a fiddle"

  19. #19
    Insane Bicycle Mechanic Jeff Wills's Avatar
    Join Date
    Mar 2008
    Location
    other Vancouver
    Posts
    6,659
    Mentioned
    12 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by rhenning View Post
    The nuts/sockets to tighten bar end shifters to handle bars. Roger
    Nope. These are right-hand thread. However, since they're accessed from the "bottom" end and not the "head" end, you turn the wrench opposite the "normal" direction. I have to re-teach myself this every time I work on bar-cons.
    Jeff Wills

    All my bikes.

  20. #20
    Senior Member Shimagnolo's Avatar
    Join Date
    May 2008
    Location
    Zang's Spur, CO
    Posts
    6,255
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by flanso View Post
    The lug nuts on 1950s Chrysler products, on the driver's side, were left-hand threads.
    Even more recent than that.
    When I was a kid I owned a 1970 Barracuda.
    The first time I had a flat tire, I snapped off two lug bolts before I figured out what was happening.

  21. #21
    Senior Member DannoXYZ's Avatar
    Join Date
    Jul 2005
    Location
    Saratoga, CA
    Posts
    11,495
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by Jeff Wills View Post
    Quote Originally Posted by rhenning
    The nuts/sockets to tighten bar end shifters to handle bars. Roger
    Nope. These are right-hand thread. However, since they're accessed from the "bottom" end and not the "head" end, you turn the wrench opposite the "normal" direction. I have to re-teach myself this every time I work on bar-cons.
    Simple way to remember this is the "right-hand rule". Imagine wrapping your hand around the fastener with your thumb pointing in the direction you want it to move. Your fingers would indicate the direction of twist needed. Also handy for figuring out direction of current-flow when a wire passes through a magnetic field.

  22. #22
    Senior Member DieselDan's Avatar
    Join Date
    Mar 2003
    Location
    Beaufort, South Carolina, USA and surrounding islands.
    My Bikes
    Cannondale R500, Motobecane Messenger
    Posts
    8,524
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    The cone and nut on an one piece crank on the left side.
    Bikes use brakes to stop.

    If your bike has breaks, don't ride it.

  23. #23
    Newbie
    Join Date
    Nov 2010
    Location
    central Wisconsin
    My Bikes
    1992' Bridgestone XO-3 with Serfas Vida 700Cx38 tires
    Posts
    4
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    My 1980 era Shimano bar end shifters, the bolts that tighten the swedges inside the bar end. CC to tighten. I always must relearn every 5 - 10 years when replacing tape.

  24. #24
    Senior Member
    Join Date
    Apr 2010
    Location
    Sunnyvale, CA USA
    Posts
    2,955
    Mentioned
    4 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by j mendivil View Post

    I would like to learn of any others such as UST threaded eyelets and so on...
    Campagnolo first generation right ergo lever main pivot shaft.

  25. #25
    Old Fogy
    Join Date
    Oct 2006
    Location
    Murray, Utah
    Posts
    1,224
    Mentioned
    0 Post(s)
    Tagged
    0 Thread(s)
    Quote Originally Posted by flanso View Post
    The lug nuts on 1950s Chrysler products, on the driver's side, were left-hand threads.
    So did my 1940 Plymouth.

Page 1 of 2 12 LastLast

Posting Permissions

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