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  1.                           CHART OF INTERCHANGEABILITY
  2.                           copyright 1990, Jeff Napier
  3.  
  4.          THE STANDARDS GROUPS                         Freewheels
  5.      American standard = American       All interchangeable
  6.       Schwinn standard = Schwinn        except: French, Italian.
  7.      English, Japanese = Eng,Jap
  8.            French = French                          Handlebar stem
  9.       Old English = Old English         American..........................7/8"
  10.           Italian = Italian             Most others.....................15/16"
  11.         ---------------------           French....................non-standard
  12.   The components interchange within
  13.              these groups                               Grips
  14.                                         All standard......................7/8"
  15.      The standards  mean  that a head-
  16. set from an  American-made  Huffy will
  17. fit in another American-made Columbia,
  18. but not in a French-made Peugeot. How-                  Chain
  19. ever, the French  Peugeot  parts  will  1- and 3-speeds.............1/2 x 1/8"
  20. fit in another French made Jeunet.      derailleur bikes...........1/2 x 3/32"
  21.  
  22.    --------------------------------
  23.                                                         Tires
  24.             Axle Threading              The standards for width are the same
  25. Front wheels, American...5/16" x 24TPI  regardless of diameter.
  26. Front wheels, BMX,                      26 x 1-3/8 EA3 does not fit EA1
  27.    Cruiser, Mountain......3/8" x 26TPI  26 x 1-3/8 for Schwinn is EA1 and
  28. Rear wheels, coaster......3/8" x 24TPI     26 x 1-1/4
  29. Rear wheels, derailleur...3/8" x 26TPI  26 x 1.75 interchanges w/ 26 x 2.125
  30. Sturmey-Archer............non-standard  26 x 1.75 is not 26 x 1-3/4
  31. Schwinn (pre-1970)........non-standard     (1-3/4 tubes do fit 1.75)
  32.                                         26 x 1.50, 1.95, 2.00, 2.10 also
  33.                                          interchange with 26 x 1.75
  34.                Bearings                 27 x 1-1/8 will fit 27 x 1-1/4
  35. headset..........................5/32"    27 x 1 will also fit, but not well
  36. bottom bracket, 3-pc..............1/4"  700c does not fit 27" diameter
  37. bottom bracket, 1-pc.............5/16"
  38. pedals....................1/8 or 5/32"
  39. freewheel.........................1/8"             Crank Cotters
  40. front hub........................3/16"  English, Japanese...............9.5mm
  41. rear hub..........................1/4"  French..........................9.0mm
  42.  
  43.               Seat Clamp
  44. American..................5/8" or 7/8"         Frame Tubing Diameters
  45. All others........................7/8"  American: seat-, down-, toptube....1"
  46.                                         Japanese: English, toptube.........1"
  47.               Seat Post                     downtube, seattube.........1-1/8"
  48. American, general...............13/16"  French: close to Japanese, not exact
  49. BMX, inexpensive................13/16"
  50. BMX, expensive....................7/8"
  51. Mountain Bike, inexpensive..........1"               Pedals
  52. Mountain Bike, expensive...26.4,26.6mm  1-pc cranks......................1/2"
  53. Road bike, inexpensive..............1"  3-pc cranks.....................9/16"
  54. Road bike, expensive.......26.8,27.2mm  French...................non-standard
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