Here you can find information on how to choose the right product.
This should help you find the right article and show the differences that exist between the individual bicycle parts.
Bicycles & Frames
With a vintage racing bike, it is especially important that you do not stand on the top tube when dismounting. We indicate the standover height for each bike. You can measure your stride length and compare it with the standover height.
A seat tube (center-center): Measured from the center of the bottom bracket to the center of the top tube.
B seat tube (center-top): Measured from the center of the bottom bracket to the end of the seat tube.
C Top tube: Measured from the center of the head tube to the center of the seat tube.
D Head tube: length of the head tube.
E Overhang height: Length from the ground to the top edge of the top tube.
A shaft length
B thread length
C Thigh measurement: Distance between the center of the brake flank and the brake mount. Important for selecting the right brake. There are brakes with short and long arms.
D Fork steerer diameter: Diameter of the shaft. Often 1" or 1 1/8"
E Fork crown: Diameter of the fork crown onto which the bearing cone is mounted. Often 26.4, 26.5 or 27.0 mm
F Installation height: Distance between the axle center and the fork crown
Brake type: road bike brake/cantilever
wheel size: are designed for one wheel size. For racing bikes, 28" (622mm) is the standard.
Wheels
A Installation dimensions: Distance between the inside of the dropouts on which the wheels rest.
B Freewheel: Freewheel with Italian, ISO, British or French thread, or freewheel in different versions. More information in Guide to Wheel Selection
C Rim shoulder diameter: Diameter of the contact surface of the tires.
D Mouth width: width of the rim on the inside
Tire: Clincher (folding or wire tire) or Tubular (tubular tire)
Cranks
A bolt circle diameter: Diameter of the circle that passes through the crank bolts.
B Crank length: Distance between the center of the bottom bracket axle and the center of the pedal axle.
C Bearing recording: How the crank is connected to the bottom bracket axle. Square axles are the most common for vintage cranks. There are several standards for square bearings:
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ISO is often used by European manufacturers (e.g. Campagnolo)
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JIS (Japan Industrial Standard), as the name suggests, is often used by Japanese manufacturers.
In addition, later models from Shimano have the Octalink-mount, before the newer models of cranks with oversized axles appeared.
D Pedal thread:
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9 / 16 " have most cranks
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14 x 1,25 mm was the French standard
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1" Dyna Drive was used on some Shimano models in the late 70s and early 80s.
