• Crank/spindle length requirements
  (Renders manufacturers' suggested chainline for contemporary rear track hubs with 120 mm over-locknut spacing)

  Crank	Spindle length	Spindle type
  Sugino 75	109 mm.	Symmetrical
  Sugino Grand Mighty	109 mm.	Symmetrical
  Campagnolo Record Track(current)	111 mm.	Symmetrical
  Campagnolo 1051 Record Track and 4151 Super Record Track	109 mm.	Symmetrical
  Shimano Dura-Ace 7710	109.5 mm. (Octalink splined attachment)	Asymmetrical
  Shimano Dura-Ace 7600	109 mm.	Symmetrical
  Shimano Dura-Ace EX Track	107 mm. (BSC) 109 mm. (Italian)	Symmetrical
  Shimano Dura-Ace Ten Pitch	107 mm. (BSC) 109 mm. (Italian)	Symmetrical
  Gipiemme	109 mm.	Symmetrical
  Suntour Superbe Pro	109 mm	Symmetrical
  Miche Primato Pista	107 mm.	Symmetrical
  FSA Vigorelli Track	108 mm. (ISIS splined)	Symmetrical

  N.B. - Be aware that differences in the tapers, overhangs and other variables of bottom bracket spindles may well affect chainline if you are mixing a crank from one manufacturer with the bottom bracket of another (even if the spindles are the same overall length). Not all fixed cups are alike either. If you must mix models and manufacturers' cranks and b/b's, you will frequently be best served by at least keeping both from within the same country of origin (i.e., Dura-Ace crank with Sugino 75 b/b; Super Record crank with Gipiemme b/b). By doing so, at least the taper shapes are more likely to be compatible. The results however, particularly with used cranks, are not consistently predictable. To hammer home the obvious though, it is almost always preferable to pair the crank with the exact bottom bracket model for which it was designed.

• Bolt circle patterns (in mm.)

  Sugino 75	144
  Sugino Grand Mighty	144
  Campagnolo Record (current)	144
  Campagnolo 4141 Super Record Track and 1051 Record Track	144
  Campagnolo Record (pre-1972 or so)	151
  Shimano Dura-Ace (7710 series, with splined spindle joint)	144
  Shimano Dura-Ace (7600 series)	144
  Shimano Dura-Ace EX	151
  Shimano Dura-Ace 10 Pitch	122
  Gipiemme	144
  Miche Primato Pista	135
  Miche Primato Pista "Advantage"	144
  Suntour Superbe Pro	144
  Stronglight Speedlite Track	130
  Specialites T.A. "Compet" Piste	144
  Specialites T.A. Alize Piste and new style Alize Piste	130
  FSA Vigorelli Track	144

• Determining bolt circle patterns - Unsure of what bolt circle pattern your crank (or chainring) has? It's hard to get an accurate measurement of the diameter of the circular pattern the fasteners trace (also frequently referred to as "P.C.D.", [pitch center diameter]). Instead, measure the distance (in a straight line) between the centers of two adjacent chainring fasteners. The table below gives the distance between fasteners for equivalent bolt circle patterns.

  144 bolt circle pattern 84.6 mm., hole center to hole center 151 bolt circle pattern 88.8 mm., hole center to hole center 130 bolt circle pattern 76.4 mm., hole center to hole center 135 bolt circle pattern 79.4 mm., hole center to hole center 110 bolt circle pattern 64.7 mm., hole center to hole center

• Crankset 'Q' Factors -

  In addition to the bottom bracket drop of your frame and the proportions of the bodies of your pedals, pedal-strike issues can also be fractionally influenced by how wide from the centerline your cranks place the pedals. The table below gives the unoffical "Q-Factor" of some popular contemporary track cranks.

  (Measured from the outside faces of the left and right cranks at the pedal holes)

  Cranks	Bottom Bracket	'Q'
  Campagnolo Record Pista	Campagnolo Record Pista	131 mm.
  Dura-Ace 7600	Dura-Ace 7610	139 mm
  Dura-Ace 7600	Dura-Ace 7600	137 mm.
  Sugino 75 Track	Sugino 75 Track	139 mm.
  Dura-Ace 7710	Dura-Ace 7710	136 mm.
  Miche Primato Pista	Miche Primato (107 mm.)	135 mm.

  The 'Q' measurements above are not specifications published by the various manufacturers. The numbers are taken from (handheld) measurements made in the shop on new (or nearly new) cranks paired with the corresponding bottom bracket from the same manufacturer. Accordingly, they should be used for rough comparative purposes only.

• Spindle Lengths

First, see the caveat about playing mix 'em and match 'em with different models and manufacturers in the section on cranks above. Beware of the potentially inaccurate chainline that may result if you mix the spindle from one model with the cups from another (often even if they're from the same manufacturer). Fixed cups will vary in thickness from model to model and there's no consistency across various models of distances from spindle ends to bearing surfaces (overhang). There's more to getting an accurate chainline for a particular crank than just overall spindle length.

• Stack Heights for Track Headsets

• Handlebar Clamp Diameters

• Handlebar Clamp Bore Diameters

• Thread standards for hub axles:

  Model	Front	Rear
  Campagnolo Record (includes all earlier track models)	9×26	10×26
  Shimano Dura-Ace	9×1	10×1
  Suntour Superbe Pro	9×1	10×1
  Suzue Pro-Max and Pro-MaxCF (models with standard cone/balls with fixed/fixed rear)	9x1	10x1
  Suzue Pro-Max SB (sealed bearing model with fixed/free rear)	3/8×26	3/8×26
  Suzue SIL-SP	5/16×26	3/8×26
  Miche Primato	9×1	10×1
  Formula TH-50, TH-51, TH52	9×1	10×1
  Formula TH-30, TH-31, TH32	9×1	10×1
  Dimension Track	9×1	10×1
  Dia-Compe Gran Comp	9×1	10×1
  Surly New Track	9×1	10×1
  Zipp T2	9×1	10×1
  OMAS	9×1	10×1
  Maillard	9×1	10×1
  Galli	9×1	10×1
  Gipiemme	9×26	10×26

• Lockring threading standards:

  33.5 mm × 24 TPI	Campagnolo, Gipiemme, Phil Wood, Miche
  1.29" × 24 TPI	Shimano, Suntour, Formula, Dimension, Suzue, Surly, Zipp, Corima
  33.0 mm × 1	Mavic

  All track sprocket lockrings are left-hand threaded.

• Determining Width - 1/8" or 3/32"?

No access to a caliper? Drape a length of new, or nearly new 3/32", 8-speed chain (same as road, but see note about 9 and 10 speed chains below) over the sprocket or chainring in question. Four or five links will usually be enough to tell. The rollers on a 3/32" chain will not fully drop into the troughs between the teeth of a 1/8" sprocket or chainring. It follows that if the 3/32" chain meshes properly with the teeth of the gear you're checking, you've got a 3/32'" one -- if the rollers ride up without fully engaging the teeth (don't force it), it's 1/8".

N.B. - For this test (or especially in actual use), never employ 9 or 10 speed chains - although they're oftern still nominally classed as 3/32", the internal dimensions of nine and ten speed chains are too narrow to pair with premium 3/32" track sprockets. Always use a chain designed for 8 (or fewer) speed operation which will usually be at least 7.1 mm wide. Ideally, it will be one made specifically for single-speed use.

The chain-mesh test isn't foolproof, particularly if the chain or sprocket isn't new - the best way is to measure it.

Chainline Specifications