Choose a Category
    System of Measurement
    System of Measurement
    Inch
    Metric
    Outer Circumference
    Outer Circumference
    default
    4"
    4 1/4"
    4 1/2"
    4 3/4"
    5"
    5 1/4"
    5 1/2"
    5 3/4"
    6"
    6 1/4"
    6 1/2"
    6 3/4"
    7"
    7 1/4"
    7 1/2"
    7 3/4"
    8"
    8"-1,200"
    8 1/4"
    8 1/2"
    8 3/4"
    9"
    9 1/4"
    9 1/2"
    9 3/4"
    10"
    10 1/4"
    10 1/2"
    10 3/4"
    11"
    11 1/4"
    11 1/2"
    11 3/4"
    12"
    12"-1,200"
    12 1/4"
    12 1/2"
    12 3/4"
    13"
    13"-1,200"
    13 1/4"
    13 1/2"
    13 3/4"
    14"
    14 1/4"
    14 1/2"
    14 3/4"
    15"
    15 1/4"
    15 1/2"
    15 3/4"
    16"
    16 1/4"
    16 1/2"
    16 3/4"
    17"
    17 1/4"
    17 1/2"
    17 3/4"
    18"
    18 1/4"
    18 1/2"
    18 3/4"
    19"
    19 1/4"
    19 1/2"
    19 3/4"
    20"
    20 1/4"
    20 1/2"
    20 3/4"
    21"
    21 1/4"
    21 1/2"
    21 3/4"
    22"
    22 1/4"
    22 1/2"
    22 3/4"
    23"
    23 1/4"
    23 1/2"
    23 3/4"
    24"
    24 1/4"
    24 1/2"
    24 3/4"
    25"
    25 1/4"
    25 1/2"
    25 3/4"
    26"
    26 1/4"
    26 1/2"
    26 3/4"
    27"
    27 1/4"
    27 1/2"
    27 3/4"
    28"
    28 1/4"
    28 1/2"
    28 3/4"
    29"
    29 1/4"
    29 1/2"
    29 3/4"
    30"
    30 1/4"
    30 1/2"
    30 3/4"
    31"
    31 1/4"
    31 1/2"
    31 3/4"
    32"
    32 1/4"
    32 1/2"
    32 3/4"
    33"
    33 1/4"
    33 1/2"
    33 3/4"
    34"
    34 1/4"
    34 1/2"
    34 3/4"
    35"
    35 1/4"
    35 1/2"
    35 3/4"
    36"
    36 1/4"
    36 1/2"
    36 3/4"
    37"
    37 1/4"
    37 1/2"
    37 3/4"
    38"
    38 1/4"
    38 1/2"
    38 3/4"
    39"
    39 1/4"
    39 1/2"
    39 3/4"
    40"
    40 1/4"
    40 1/2"
    40 3/4"
    41"
    41 1/4"
    41 1/2"
    41 3/4"
    42"
    42 1/4"
    42 1/2"
    42 3/4"
    43"
    43 1/4"
    43 1/2"
    43 3/4"
    44"
    44 1/4"
    44 1/2"
    44 3/4"
    45"
    45 1/4"
    45 1/2"
    45 3/4"
    46"
    46 1/4"
    46 1/2"
    46 3/4"
    47"
    47 1/4"
    47 1/2"
    47 3/4"
    48"
    48 1/4"
    48 1/2"
    48 3/4"
    49"
    49 1/4"
    49 1/2"
    49 3/4"
    50"
    50 1/4"
    50 1/2"
    50 3/4"
    51"
    51 1/4"
    51 1/2"
    51 3/4"
    52"
    52 1/4"
    52 1/2"
    52 3/4"
    53"
    53 1/4"
    53 1/2"
    53 3/4"
    54"
    54 1/4"
    54 1/2"
    54 3/4"
    55"
    55 1/4"
    55 1/2"
    55 3/4"
    56"
    56 1/4"
    56 1/2"
    56 3/4"
    57"
    57 1/4"
    57 1/2"
    57 3/4"
    58"
    58 1/4"
    58 1/2"
    58 3/4"
    59"
    59 1/4"
    59 1/2"
    59 3/4"
    60"
    203mm
    229mm
    254mm
    279mm
    305mm
    356mm
    381mm
    406mm
    432mm
    457mm
    483mm
    508mm
    533mm
    559mm
    610mm
    635mm
    660mm
    686mm
    711mm
    762mm
    813mm
    838mm
    864mm
    914mm
    965mm
    1,016mm
    1,067mm
    1,118mm
    1,168mm
    1,219mm
    1,245mm
    1,270mm
    1,372mm
    1,422mm
    1,524mm
    1,626mm