Description: D:\backup\My Documents\My Webs\piackroyd\ethan\circuit\gearing_files\cirgear.gif

All of the details are based upon information that has been posted on the UK Karting Notice board, or
from individuals. There are no hard and fast rules but, for someone starting out, these figures are a
reasonable starting point. They are based upon dry conditions. Remember that you will have to alter
the gearing for a wet setup.

It is recommended that if you are in doubt about the choice of sprocket, go and talk to some of the
other people who are testing/racing. Most will be extremely willing to help.
Remember: There is no substitute for testing.

It is well worth remembering that sprockets and curbs do NOT mix and the use of a sprocket guard
is highly recommended. This is not just to save the sprocket, but to help prevent getting a twisted
crankshaft and the loss of many pounds from the bank account.

Entries shown with / are engine/axle sprocket sizes. Entries with - are axle sprocket range.

If you want details of equivalent gear ratios, to those specified on this page, then click here

.

CADETS

ROTAX

TKM 2/

Circuit

Comer
W60

Honda

WTP

Mini
Max

Jnr

Snr

Snr
Hvy

Jnr

Ext

20T

(10T engine sprocket)

Bayford Meadows

...

72

...

12/85

12/83

12/85

...

88-89

88

Blackbushe (Camberley)

93-95

75

95-97

...

...

12/86

...

85-86

85-87

Boyndie

...

...

...

13/75

13/80

12/79

...

87

85

Buckmore

92

...

92-94

12/79

12/84

12/83

...

84-87

89

Clay Pigeon

86

71

88-90

13/71

12/70

12/75

...

77-78

77

Crail

...

...

...

...

...

12/79

...

80

81

Dunkeswell

...

73

...

...

...

12/80

12/83

81

77

Ellough (Beccles)

94

...

96

...

12/83

12/89

...

86

86

Forest Edge

...

70-72

89-91

12/74

12/75

12/77

12/82

78-80

81

Fulbeck

91

73

91-93

13/79

12/80

12/81

...

85-86

81-83

Genk

84

...

...

...

13/77

...

...

...

...

Glan Y Gors

86

73

87-88

13/73

13/74

12/77

...

76

75

Golspie

...

...

...

...

...

12/72

...

78

...

Hooton Park

88

76

...

13/76

13/79

12/78

...

80-82

80

Hullavington

...

...

...

...

...

...

...

...

...

Kimbolton

88

71

89

13/74

12/73

12/78

...

81

77-80

Larkhall

90-92

70-72

...

13/79

12/76

12/82

...

81-85

87

Llandow

95-97

...

95-99

...

12/79

12/84

...

84

82

Lydd

...

72

...

13/73

12/72

12/76

12/79-80

86

86

Milton Keynes

...

...

...

...

12/89

12/89

...

...

...

Nutts Corner

...

...

...

...

...

...

...

87

85

Pembrey

...

...

...

...

...

...

...

86

85

PF International

88

...

87-93°

13/75

12/75

12/79

12/80

83

79-80

Red Lodge

97

...

...

...

...

12/87

12/89

90

88

Rednal

...

...

...

...

...

12/80

...

...

... 

Rissington

86-87

...

93-95

13/74

12/73

12/78

12/80

82

82

Rowrah

93

75

93-95

12/78

12/82

12/87

...

88

86

Rye House

93

82

95-96

12/80

12/82

12/86

12/87

87

86

Shenington

86

...

90-92

13/75

12/74

12/76

...

82

80

Stretton

...

...

...

...

...

...

...

84

...

Tattershall

...

...

...

13/77

...

12/81

...

...

...

Tilbury

...

...

...

...

...

12/89

...

88

87

Tockwith

...

...

...

...

...

12/86

...

...

...

Warden Law

91-94

71-72

...

...

13/79

12/85

...

88

87

Whilton Mill

88

73

89-91

13/78

13/80

12/80

12/82

85

81

Wigan

81

75

82-84

14/70

14/74

14/79

...

72

69-70

Wigan Valley

83*

               

Wombwell

89

69-70

88-90

13/77

12/74

12/80

...

83-84

80-81

Woodthorpe

...

...

...

...

...

12/81

...

...

...

·         Wigan Valley Circuit, 83 or 84. 82 if really quick (Scott Walker)