Brake Reach
Thanks to Tom Rawson for this spreadsheet.
Corrections and additions accepted gratefully
  - e-mail mark at bulgier dot net
Brand Model # Top slot mid slot bot slot
Mafac Competition Cn0A 39 44 49
    Cn1A 44 49 54
    *Cn2A* 49 54 59
    Cn3A 51 58.5 66
  GT GT0A 38 43 48
    GT1A 43 48 53
    GT2A 48 53 58
  2000 M0A 43 50.5 58
    M1A 48 55.5 63
    M2A 53 60.5 68
    M3A 55 65 75
  Racer  (aka  R0 43 50.5 58
  Dural Forge) R1 48 55.5 63
    *R2* 53 60.5 68
    R3 55 65 75
  S S0 44 51.5 59
    S1 49 56.5 64
    S2 54 61.5 69
    S3 56 66 76
  Raid Rd 65 72.5 80
  Tiger   56 59 62
Weinmann Vainqueur 999 610 48 54.5 61
    750 60 68.5 77
Campy (Old) Record short 40 45.5 51
    long 46 51.5 57
GB Coureur 66   50 58 66
Universal Mod. 61 short 47 52.5 58
    long 53 62 71
  Super 68 short 45 52 59
    long 52 59 66
*Asterixes indicate the most common variant